PAM powder feeding device based on pneumatic conveying

Abstract

The invention provides a PAM powder feeding device based on pneumatic conveying. The PAM powder feeding device comprises a storage module, a first feeding module, a primary pneumatic conveying module, a second feeding module, a secondary pneumatic conveying module, a dissolving module, a liquid storage and dosing module, an automatic control module and an equipment platform. The primary pneumatic conveying module is connected with the storage module and the second feeding module, and the PAM powder in the storage module is conveyed to the second feeding module by the primary pneumatic conveying module; the secondary pneumatic conveying module is connected with the second feeding module and the dissolving module, and the PAM powder in the second feeding module is conveyed to the dissolving module through the secondary pneumatic conveying module. A secondary pneumatic conveying and combined feeding mode is adopted, the whole process of feeding, storing, dissolving and liquid storage dosing is considered, meanwhile, automatic control over the whole process can be achieved through an automatic control system, the labor intensity and the labor cost are reduced while the dosing accuracy is improved, and in addition, the whole process is free of dust leakage, clean and environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of medicament dosing, and in particular to a PAM (Polyacrylamide) powder dosing device based on pneumatic conveying. Background Art

[0002] PAM is a water-soluble polymer compound that can be decomposed by microorganisms or other organisms without causing pollution to the environment. It has efficient and stable adsorption, thickening and viscosity increasing properties. It can be used as a flocculant, cementing mud agent, leveling agent, wet strength agent, water filter and white water treatment agent, etc. It is widely used in water treatment, oil extraction, soil solidification, textile coating, paper processing, biotechnology and other fields.

[0003] At present, one method of adding PAM in the prior art includes: making PAM powder into liquid, and then transporting the liquid PAM through a metering pump. The disadvantages of this method include: adding PAM powder into water easily leads to agglomeration and incomplete dissolution, causing blockage of pipelines and equipment, and affecting the efficiency of dosing. Summary of the invention

[0004] The invention provides a PAM powder dosing device based on pneumatic conveying to realize automatic control of the entire process of material storage, drug preparation and drug dosing as well as combined feeding.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme.

[0006] A PAM powder dosing device based on pneumatic conveying, comprising: a material storage module, a first feeding module, a primary pneumatic conveying module, a second feeding module, a secondary pneumatic conveying module, a dissolving module, a liquid storage and dosing module and an automatic control module;

[0007] The first loading module is connected to the storage module, and the first loading module transports the PAM powder raw material to the storage module for storage;

[0008] The primary pneumatic conveying module is connected to the material storage module and the second feeding module, and the primary pneumatic conveying module conveys the PAM powder in the material storage module to the second feeding module;

[0009] The secondary pneumatic conveying module is connected with the second feeding module and the dissolving module, and the secondary pneumatic conveying module conveys the PAM powder in the second feeding module to the dissolving module;

[0010] The solution of the dissolving module is transported to the liquid storage and dosing module through a pipeline, and the automatic control module controls the PAM agent of the liquid storage and dosing module to be delivered to the dosing point through a metering pump and a pipeline.

[0011] Preferably, the material storage module includes a first powder bin, a ladder, a guardrail, a material level meter, a dust collector and a dehumidifier installed on the top, and a discharge valve of the first powder bin installed on the bottom.

[0012] Preferably, the first feeding module includes a feeding pipeline, a vacuum feeder and a feeding valve, the primary pneumatic conveying module includes a first fan, a first feeder, a first acceleration chamber and a conveying pipe, the first fan outlet is connected to the first acceleration chamber inlet, the first feeder inlet is connected to the discharge valve outlet of the first powder bin, and the first feeder outlet is connected to the first acceleration chamber inlet.

[0013] Preferably, the second loading module comprises a ton bag bracket, an electric hoist, a ton bag hanger, a ton bag, a beater, a bag unpacker, a second powder bin, a vibrator and a feed valve of the second powder bin, and the feed valve of the second powder bin is connected to the outlet of the conveying pipe of the primary pneumatic conveying;

[0014] The primary pneumatic conveying module sequentially opens the second powder bin feed valve, the first fan, the first feeder and the first powder bin discharge valve, and conveys the PAM powder in the first powder bin to the second powder bin through the unpacker.

[0015] Preferably, the secondary pneumatic conveying module comprises a second fan, a second feeder, a second acceleration chamber, a branch valve and a conveying pipe, the outlet of the second fan is connected to the inlet of the second acceleration chamber, the inlet of the second feeder is connected to the bottom outlet of the second powder bin, and the outlet of the second feeder is connected to the inlet of the second acceleration chamber;

[0016] The secondary pneumatic conveying module opens the water supply valve and the water pump to inject hot water into the dissolving tank to a set liquid level, and adjusts the hot water flow to the second conveying pipeline installed with the three-phase mixer through the bypass valve. The secondary pneumatic conveying module opens the second fan, the second feeder and the dissolving tank agitator to convey the PAM powder in the second powder bin to the dissolving tank for full dissolution. When the dissolving tank reaches the set liquid level, the feeding and water intake are stopped.

[0017] Preferably, the dissolution module includes a constant temperature hot water tank, a water pump, a check valve, a flow meter, a water supply valve, a three-phase mixer, a dissolution tank, an agitator, a liquid level meter, a liquid outlet valve, a drain valve and a pipeline. The constant temperature hot water tank conveys hot water to the dissolution tank through a water pump, the outlet of the three-phase mixer is connected to the dissolution tank, the vertical inlet of the three-phase mixer is connected to the outlet of the secondary pneumatic conveying, and the horizontal inlet of the three-phase mixer is a hot water input port.

[0018] When the PAM powder reaches the dissolving tank, the PAM powder is mixed and dissolved with the hot water sprayed from the three-phase mixer.

[0019] Preferably, the liquid storage and dosing module comprises a liquid storage tank, a stirrer, a liquid level meter, an emptying valve, a Y-type filter, a liquid outlet valve and a pipeline. The liquid outlet valve is connected to the metering pump module, and the liquid outlet valve delivers the configured PAM agent to each dosing point.

[0020] Preferably, the first feeder and the second feeder have a frequency conversion controlled quantitative feeding function, and the second loading module has a ton bag direct feeding function.

[0021] Preferably, the agitator of the dissolving tank and the agitator of the liquid storage tank are eccentric agitators, the eccentric angle is selected according to actual needs, and the dissolving tank has an exhaust port.

[0022] It can be seen from the technical solutions provided by the above-mentioned embodiments of the present invention that the device of the present invention adopts secondary pneumatic conveying and combined feeding methods, taking into account the entire process of feeding, storing, dissolving and storing liquid for dosing. At the same time, the automatic control of the entire process can be achieved through the automatic control system, thereby improving the accuracy of dosing while reducing labor intensity and labor costs. In addition, the entire process is dust-free and environmentally friendly.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 , Figure 2 and Figure 3 A schematic structural diagram of a PAM powder dosing device based on pneumatic conveying provided in an embodiment of the present invention;

[0026] In the figure: 1-first powder bin; 11-ladder; 12-guardrail; 13-first powder bin discharge valve; 14-dust collector; 15-dehumidifier; 16-level meter; 2-vacuum feeder; 21-feeding pipeline; 22-feeding valve; 3-first fan; 31-first acceleration chamber; 32-first feeder; 33-first conveying pipe; 4-ton bag bracket; 41-electric hoist; 42-ton bag hanger; 43-ton bag; 44-beater; 45-unpacker; 46-second powder bin; 47-vibrator; 48-second powder bin feed valve; 49-second fan; 410-second Feeder; 411-second acceleration chamber; 412-second delivery pipeline; 413-dividing valve; 5-dissolving tank; 51-dissolving tank agitator; 52-three-phase mixer; 53-dissolving tank level gauge; 54-dissolving tank outlet valve; 55-dissolving tank emptying valve; 6-liquid storage tank; 61-liquid storage tank agitator; 62-liquid storage tank level gauge; 63-liquid storage tank emptying valve; 64-Y-type filter; 65-liquid storage tank outlet valve; 7-constant temperature hot water tank; 71-water pump; 72-check valve; 73-flow meter; 74-water supply valve; 8-automatic control module; 9-equipment platform. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0028] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or coupling. The term "and / or" used herein includes any unit and all combinations of one or more associated listed items.

[0029] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0030] To facilitate understanding of the embodiments of the present invention, several specific embodiments will be further explained below with reference to the accompanying drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0031] The structural schematic diagram of a PAM powder dosing device based on pneumatic conveying provided by an embodiment of the present invention is as follows Figure 1 , Figure 2 and Figure 3 , including a material storage module, a first feeding module, a primary pneumatic conveying module, a second feeding module, a secondary pneumatic conveying module, a dissolving module, a liquid storage and dosing module, an automatic control module and an equipment platform.

[0032] The first loading module is connected to the storage module, and the first loading module transports the PAM powder raw material to the storage module for storage.

[0033] The primary pneumatic conveying module is connected with the material storage module and the second feeding module, and the primary pneumatic conveying module conveys the PAM powder in the material storage module to the second feeding module.

[0034] The secondary pneumatic conveying module is connected with the second feeding module and the dissolving module, and the secondary pneumatic conveying module conveys the PAM powder of the second feeding module to the dissolving module.

[0035] The solution of the dissolving module is transported to the liquid storage and dosing module through a pipeline, and the PAM agent of the liquid storage and dosing module is delivered to the dosing point through a metering pump and a pipeline. Fully automatic control is achieved through an automatic control module and an automatic valve.

[0036] The second loading module has the function of direct feeding of ton bags.

[0037] The material storage module includes a first powder bin, a ladder, a guardrail, a material level meter, a dust collector and a dehumidifier installed on the top, and a first powder bin discharge valve installed on the bottom.

[0038] The first feeding module includes a feeding pipeline, a vacuum feeding machine and a feeding valve.

[0039] The primary pneumatic conveying module includes a first fan, a first feeder, a first acceleration chamber and a conveying pipe. The outlet of the first fan is connected to the inlet of the first acceleration chamber. The inlet of the first feeder is connected to the outlet of the discharge valve at the bottom of the first powder bin, and the outlet of the first feeder is connected to the inlet of the first acceleration chamber. In practical applications,

[0040] The second loading module includes a ton bag bracket, an electric hoist, a ton bag hanger, a ton bag, a beater, a bag unpacker, a second powder silo, a vibrator and a second powder silo feed valve. The second powder silo feed valve is connected to the outlet of the conveying pipe of the primary pneumatic conveying. The PAM powder in the ton bag is unloaded to the second powder silo through the bag unpacker.

[0041] In practical applications, the primary pneumatic conveying module sequentially opens the second powder bin feed valve, the first fan, the first feeder and the first powder bin discharge valve to convey the PAM powder in the first powder bin to the second powder bin.

[0042] The secondary pneumatic conveying module includes a second fan, a second feeder, a second acceleration chamber, a branch valve and a conveying pipe. The outlet of the second fan is connected to the inlet of the second acceleration chamber. The inlet of the second feeder is connected to the outlet at the bottom of the second powder bin, and the outlet of the second feeder is connected to the inlet of the second acceleration chamber. The branch valve on the conveying pipeline can change the flow direction of the material.

[0043] In actual application, the secondary pneumatic conveying module opens the water supply valve and the water pump to inject hot water into the dissolving tank to the set liquid level, and adjusts the flow direction to the second conveying pipeline with a stainless steel three-phase mixer through the bypass valve. The second fan, the second feeder and the dissolving tank agitator are turned on to convey the PAM powder in the second powder bin to the dissolving tank for full dissolution. When the dissolving tank reaches the set liquid level, the feeding and water intake are stopped.

[0044] The above-mentioned dissolution module includes a constant temperature hot water tank, a water pump, a check valve, a (specifically electromagnetic) flow meter, a water supply valve, a three-phase mixer, a dissolution tank, an agitator, a liquid level meter, a liquid outlet valve, and an emptying valve and pipeline. The constant temperature hot water tank conveys hot water to the dissolution tank through a water pump, the outlet of the three-phase mixer is connected to the dissolution tank, the vertical inlet is connected to the outlet of the secondary pneumatic conveying, and the horizontal inlet is the hot water input port. Hot water provides two functions. The first is to serve as a solvent for PAM powder, which is conducive to the full dissolution of PAM powder under the action of the agitator. The second is to serve as flushing water for the dissolution tank and the liquid storage tank. The three-phase mixer has the function of spraying hot water. Its purpose is to mix the PAM powder with the sprayed hot water when it reaches the dissolution tank, so as to quickly separate the powder from the gas, which is beneficial to the dissolution efficiency.

[0045] The liquid storage and dosing module includes a liquid storage tank, a stirrer, a liquid level meter, an emptying valve, a Y-type filter, a liquid outlet valve and a pipeline. The liquid outlet valve is connected to the metering pump module, and the liquid outlet valve transports the configured PAM agent to each dosing point.

[0046] The first feeder and the second feeder have a frequency conversion controlled quantitative feeding function.

[0047] The dissolving tank agitator and the liquid storage tank agitator are eccentric agitators, and the eccentric angle is selected according to actual needs.

[0048] The dissolving tank has an exhaust port.

[0049] The constant temperature hot water tank has the characteristics of heating and heat preservation, and is provided with liquid level interlock control, a drain valve, a water inlet and an exhaust port.

[0050] There can be one or more three-phase mixers, and their specifications, models and materials can be selected according to actual needs, such as stainless steel or ABS.

[0051] The equipment platform is provided with stairs and guardrails.

[0052] Embodiment 1

[0053] Close the dissolving tank drain valve 55, the liquid storage tank drain valve 63, the liquid storage tank storage valve 65 and the constant temperature hot water tank drain valve. Open the vacuum feeder 2 and the feeding valve 22 to transport the PAM powder raw material to the first powder bin 1 through the feeding pipeline 21, open the dust collector 14 and the dehumidifier 15, and stop feeding when the level meter 16 reaches the high level. Open the second powder bin feed valve 48, the first fan 3, the first feeder 32 and the first powder bin discharge valve 13 in sequence to transport the PAM powder in the first powder bin 1 to the second powder bin 46. Open the water supply valve 74 and the water pump 71 to inject hot water into the dissolving tank 5 to the set liquid level, where the branch valve 413 adjusts the flow direction to the second conveying pipeline 412 where the stainless steel three-phase mixer 52 is installed. The second fan 49, the second feeder 410 and the dissolving tank agitator 51 are turned on to convey the PAM powder in the second powder bin 46 to the dissolving tank 5 for full dissolution. When the dissolving tank reaches the set liquid level, the feeding and water intake are stopped through the PLC (programmable logic controller) program control.

[0054] The agitator 61 of the liquid storage tank and the outlet valve 54 of the dissolving tank are turned on, and the PAM solution in the dissolving tank 5 flows into the liquid storage tank 6. When the liquid level meter 62 of the liquid storage tank reaches the high liquid level, the outlet valve 54 of the dissolving tank is closed. When it is necessary to add medicine to the dosing point, the outlet valve 65 of the liquid storage tank is opened and connected to the metering pump module. As the medicine in the liquid storage tank is consumed, when the PAM powder in the first powder bin 1 reaches a low level, since the feeding valve 22 is a pneumatic valve (or electric valve), the vacuum feeder 2 and the feeding valve 22 are opened through the PLC program control to transport the PAM powder raw material to the first powder bin 1 through the feeding pipeline 21, and the dust collector 14 and the dehumidifier 15 are opened. When the material level meter 16 reaches the high level, the feeding is stopped through the PLC program control, thereby carrying out a new round of feeding, storage, dissolution and liquid storage dosing process. The liquid level meter is linked to the valve, and the valve is opened when the low liquid level is set, and the valve is closed when the high liquid level is set.

[0055] Embodiment 2

[0056] In the processing process of this embodiment, the secondary pneumatic conveying process is the process of powder from the second powder bin to the dissolving tank. The difference between the processing process of this embodiment and the first embodiment is that the secondary pneumatic conveying adopts the mode of ton bag loading.

[0057] Close the dissolving tank drain valve 55, the liquid storage tank drain valve 63, the liquid storage tank storage valve 65 and the constant temperature hot water tank drain valve. The storage module, the first loading module and the primary pneumatic conveying module are in shutdown state, and the second powder bin feed valve 48 is closed. The electric hoist 41 lifts the ton bag 43 to the top of the unpacker 45 to prepare for unloading. Open the water supply valve 74 and the water pump 71 to inject hot water into the dissolving tank 5 to the set liquid level, wherein the branch valve 413 adjusts the flow direction to the second conveying pipeline 412 where the ABS three-phase mixer 52 is installed. Turn on the second fan 49 and the dissolving tank agitator 51. Turn on the unpacker 45 to discharge the PAM powder in the ton bag 43 to the second powder bin 46, turn on the second feeder 410, and convey the PAM powder in the second powder bin 46 to the dissolving tank 5 for full dissolution. When the dissolving tank reaches the set liquid level, stop feeding and water intake. During the unloading process of the ton bag 43, the slapper 44 and the vibrator 47 can be assisted to ensure the unloading efficiency. The dissolving tank outlet valve 54 is opened, and the PAM solution in the dissolving tank 5 flows into the liquid storage tank 6. When the liquid level gauge 62 of the liquid storage tank reaches the high liquid level, the dissolving tank outlet valve 54 is closed. When it is necessary to add the agent to the dosing point, the liquid storage tank outlet valve 65 is opened and connected to the metering pump module. As the PAM powder raw material in the ton bag is consumed, a new ton bag is replaced, so as to carry out a new round of feeding, storage, dissolution and liquid storage dosing process.

[0058] In summary, the PAM powder dosing device of the present invention takes into account the whole process of feeding, storing, dissolving and storing liquid for dosing by adopting the method of secondary pneumatic conveying and combined feeding. Secondly, the automatic control of the whole process can be realized by the automatic control system, which improves the dosing accuracy while reducing the labor intensity and labor cost. In addition, the whole process has no dust leakage and is clean and environmentally friendly.

[0059] Those skilled in the art can understand that the accompanying drawings are only schematic diagrams of an embodiment, and the modules or processes in the accompanying drawings are not necessarily required to implement the present invention.

[0060] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The device and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0061] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A PAM powder dosing device based on pneumatic conveying, characterized in that: include: A material storage module, a first feeding module, a primary pneumatic conveying module, a second feeding module, a secondary pneumatic conveying module, a dissolving module, a liquid storage and dosing module, and an automatic control module; The first loading module is connected to the storage module, and the first loading module transports the PAM powder raw material to the storage module for storage; The primary pneumatic conveying module is connected to the material storage module and the second feeding module, and the primary pneumatic conveying module conveys the PAM powder in the material storage module to the second feeding module; The secondary pneumatic conveying module is connected with the second feeding module and the dissolving module, and the secondary pneumatic conveying module conveys the PAM powder in the second feeding module to the dissolving module; The solution of the dissolving module is transported to the liquid storage and dosing module through a pipeline, and the automatic control module controls the PAM agent of the liquid storage and dosing module to be delivered to the dosing point through a metering pump and a pipeline.

2. The device according to claim 1, characterized in that The material storage module includes a first powder bin, a ladder, a guardrail, a material level meter, a dust collector and a dehumidifier installed on the top, and a discharge valve of the first powder bin installed on the bottom.

3. The device according to claim 1, characterized in that The first feeding module includes a feeding pipeline, a vacuum feeder and a feeding valve, and the primary pneumatic conveying module includes a first fan, a first feeder, a first acceleration chamber and a conveying pipe. The first fan outlet is connected to the first acceleration chamber inlet, the first feeder inlet is connected to the discharge valve outlet of the first powder bin, and the first feeder outlet is connected to the first acceleration chamber inlet.

4. The device according to claim 3, characterized in that The second loading module includes a ton bag bracket, an electric hoist, a ton bag hanger, a ton bag, a beater, a bag unpacker, a second powder bin, a vibrator, and a feed valve of the second powder bin, and the feed valve of the second powder bin is connected to the outlet of the conveying pipe of the primary pneumatic conveying; The primary pneumatic conveying module sequentially opens the second powder bin feed valve, the first fan, the first feeder and the first powder bin discharge valve, and conveys the PAM powder in the first powder bin to the second powder bin through the unpacker.

5. The device according to claim 3, characterized in that The secondary pneumatic conveying module includes a second fan, a second feeder, a second acceleration chamber, a branch valve and a conveying pipe, the second fan outlet is connected to the second acceleration chamber inlet, the second feeder inlet is connected to the bottom outlet of the second powder bin, and the second feeder outlet is connected to the second acceleration chamber inlet; The secondary pneumatic conveying module opens the water supply valve and the water pump to inject hot water into the dissolving tank to a set liquid level, and adjusts the hot water flow to the second conveying pipeline installed with the three-phase mixer through the bypass valve. The secondary pneumatic conveying module opens the second fan, the second feeder and the dissolving tank agitator to convey the PAM powder in the second powder bin to the dissolving tank for full dissolution. When the dissolving tank reaches the set liquid level, the feeding and water intake are stopped.

6. The device according to claim 3, characterized in that The dissolution module includes a constant temperature hot water tank, a water pump, a check valve, a flow meter, a water supply valve, a three-phase mixer, a dissolution tank, an agitator, a liquid level meter, a liquid outlet valve, a drain valve and a pipeline. The constant temperature hot water tank conveys hot water to the dissolution tank through a water pump, the outlet of the three-phase mixer is connected to the dissolution tank, the vertical inlet of the three-phase mixer is connected to the outlet of the secondary pneumatic conveying, and the horizontal inlet of the three-phase mixer is a hot water input port. When the PAM powder reaches the dissolving tank, the PAM powder is mixed and dissolved with the hot water sprayed from the three-phase mixer.

7. The device according to claim 3, characterized in that The liquid storage and dosing module includes a liquid storage tank, a stirrer, a liquid level meter, an emptying valve, a Y-type filter, a liquid outlet valve and a pipeline. The liquid outlet valve is connected to the metering pump module, and the liquid outlet valve transports the configured PAM agent to each dosing point.

8. The device according to claim 3, characterized in that The first feeder and the second feeder have the function of variable frequency controlled quantitative feeding, and the second loading module has the function of direct feeding of ton bags.

9. The device according to claim 3, characterized in that The agitator of the dissolving tank and the agitator of the liquid storage tank are eccentric agitators, and the eccentric angle is selected according to actual needs. The dissolving tank has an exhaust port.

Images