Automatic feeding device for solid trimethylolpropane

Abstract

This utility model discloses an automatic feeding device for solid trimethylolpropane, including a vertical mounting frame and a horizontal mounting frame. An automatic feeding mechanism is mounted on the vertical mounting frame, comprising a feeding box and a first feeding pipe and a second feeding pipe located at the bottom of the feeding box. A first feeding tank and a second feeding tank are arranged side-by-side on the horizontal mounting frame. The lower end of the first feeding pipe is connected to the feeding end of the first feeding tank, and the lower end of the second feeding pipe is connected to the feeding end of the second feeding tank. A discharge component connected to the discharge end is mounted on the horizontal mounting frame, and a dehumidification mechanism is located at the bottom of the horizontal mounting frame. The automatic feeding device for solid trimethylolpropane provided by this utility model allows the dehumidification mechanism to absorb and dehumidify the gas in the first and second feeding tanks. The dehumidified gas is then transported back to the first and second feeding tanks, thereby removing moisture from the solid trimethylolpropane during the feeding process.

Description

Technical Field

[0001] This utility model relates to the field of chemical production technology, and in particular to an automatic feeding device for solid trimethylolpropane. Background Technology

[0002] Trimethylolpropane appears as white flaky crystals or a white crystalline solid. It plays a crucial role in industrial production, serving as a key raw material for the synthesis of alkyd resins, polyurethanes, polyester resins, and unsaturated resins. Resins synthesized based on trimethylolpropane exhibit superior performance in the coatings industry, significantly improving the weather resistance, hydrolysis resistance, and mechanical strength of coatings. Therefore, it is widely used in the production of high-grade topcoats in high-end manufacturing sectors such as automobiles, aerospace, and shipbuilding.

[0003] In the production of other materials using trimethylolpropane (TMP) as a raw material, the feeding stage is a crucial initial step. However, TMP is highly hygroscopic, meaning that even when stored in seemingly dry environments, it will absorb moisture from the air, resulting in the presence of moisture in existing TMP. In the synthesis of resins and other materials, precise raw material ratios are key to ensuring product quality and performance stability. When TMP contains moisture, it deviates from the proportions of the active ingredients participating in the reaction, causing the reaction to fail to proceed as expected, thus affecting the molecular structure and properties of the product. Utility Model Content

[0004] The purpose of this invention is to provide an automatic feeding device for solid trimethylolpropane to overcome the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic feeding device for solid trimethylolpropane includes a vertical mounting frame and a horizontal mounting frame. An automatic feeding mechanism is mounted on the vertical mounting frame. The automatic feeding mechanism includes a feeding box and a first feeding pipe and a second feeding pipe disposed at the bottom of the feeding box. Each of the first and second feeding pipes is equipped with a control valve. A first feed tank and a second feed tank are arranged side-by-side on the horizontal mounting frame. Both the first and second feed tanks are inclined. Each of the first and second feed tanks includes an inlet end and an outlet end, with the inlet end positioned higher than the outlet end. The lower end of the first feeding pipe is connected to the feeding end of the first feeding tank, and the lower end of the second feeding pipe is connected to the feeding end of the second feeding tank. A discharge component connected to the discharge end is provided on the horizontal mounting frame. A dehumidification mechanism is provided at the bottom of the horizontal mounting frame. The dehumidification mechanism includes an air inlet connector and an air outlet connector. Both the first feeding tank and the second feeding tank are provided with an air intake component and an air outlet component. The air intake connector is connected to the air intake component through an air intake connecting pipe, and the air outlet connector is connected to the air outlet component through an air outlet connecting pipe.

[0007] The aforementioned automatic feeding device for solid trimethylolpropane includes a dehumidifier as its dehumidification mechanism. The dehumidifier has a heating chamber inside, and a heating component is installed inside the heating chamber. The air inlet and air outlet are both connected to the heating chamber.

[0008] The aforementioned automatic feeding device for solid trimethylolpropane includes a dehumidification mechanism comprising a filter disposed on one side of the dehumidifier. The filter contains an air inlet chamber that communicates with the heating chamber, and the air inlet connector is connected to the air inlet chamber.

[0009] The aforementioned automatic feeding device for solid trimethylolpropane includes an arc-shaped suction plate, which is fixedly installed on the first feed tank and the second feed tank. The arc-shaped suction plate is provided with multiple suction heads, and the air inlet end of the suction head is connected to the interior of the first feed tank and the second feed tank.

[0010] In the aforementioned automatic feeding device for solid trimethylolpropane, the arc-shaped suction plate has an internal suction chamber, which is connected to each of the suction heads. The arc-shaped suction plate is provided with a suction branch pipe, which is connected to the air inlet connection pipe.

[0011] The aforementioned automatic feeding device for solid trimethylolpropane includes an arc-shaped gas outlet plate, which is fixedly installed on the first feed tank and the second feed tank. The arc-shaped gas outlet plate is provided with multiple gas outlet heads, and the gas outlet ends of the gas outlet heads are connected to the interior of the first feed tank and the second feed tank.

[0012] In the aforementioned automatic feeding device for solid trimethylolpropane, the arc-shaped gas outlet plate has an internal gas outlet chamber, which is connected to each of the gas outlet heads. The arc-shaped gas outlet plate is provided with a gas outlet branch pipe, which is connected to the gas outlet connecting pipe.

[0013] The aforementioned automatic feeding device for solid trimethylolpropane includes an arc-shaped filter screen inside the first and second feed tanks, and the arc-shaped filter screen covers the suction head and the outlet head.

[0014] The aforementioned automatic feeding device for solid trimethylolpropane further includes a screw conveyor, which is installed in both the first and second feed tanks.

[0015] In the above technical solution, the automatic feeding device for solid trimethylolpropane provided by this utility model includes a vertical mounting frame and a horizontal mounting frame. An automatic feeding mechanism is provided on the vertical mounting frame. The automatic feeding mechanism includes a feeding box and a first feeding pipe and a second feeding pipe provided at the bottom of the feeding box. A first feeding tank and a second feeding tank are arranged side by side on the horizontal mounting frame. The lower end of the first feeding pipe is connected to the feeding end of the first feeding tank, and the lower end of the second feeding pipe is connected to the feeding end of the second feeding tank. A discharge component connected to the discharge end is provided on the horizontal mounting frame. A dehumidification mechanism is provided at the bottom of the horizontal mounting frame. In this way, the feeding box, the first feeding tank and the second feeding tank can cooperate to form different feeding operations. The dehumidification mechanism can absorb the gas in the first feeding tank and the second feeding tank for dehumidification. The dehumidified gas is transported to the first feeding tank and the second feeding tank, thereby removing moisture from the solid trimethylolpropane during the feeding process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A front view of the automatic feeding device for solid trimethylolpropane provided in an embodiment of this utility model;

[0018] Figure 2 A top view of the automatic feeding device for solid trimethylolpropane provided in an embodiment of this utility model;

[0019] Figure 3 A schematic diagram of the internal structure of the first feed tank provided in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the dehumidification mechanism provided in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Vertical mounting frame; 11. Automatic feeding mechanism; 12. Feeding box; 13. First feeding pipe; 14. Second feeding pipe; 2. Horizontal mounting frame; 21. First feed tank; 22. Second feed tank; 23. Feeding end; 24. Discharge end; 25. Discharge component; 26. Suction component; 261. Arc-shaped suction plate; 262. Suction head; 263. Suction branch pipe; 27. Exhaust component; 271. Arc-shaped exhaust plate; 272. Exhaust branch pipe; 28. Arc-shaped filter screen; 29. ​​Screw conveyor; 3. Dehumidification mechanism; 31. Dehumidifier; 311. Heating component; 312. Inlet connector; 313. Exhaust connector; 32. Filter; 33. Inlet connecting pipe; 34. Exhaust connecting pipe. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4 As shown, this utility model provides an automatic feeding device for solid trimethylolpropane, including a vertical mounting frame 1 and a horizontal mounting frame 2. An automatic feeding mechanism 11 is mounted on the vertical mounting frame 1. The automatic feeding mechanism 11 includes a feeding box 12 and a first feeding pipe 13 and a second feeding pipe 14 located at the bottom of the feeding box 12. Control valves are installed on both the first feeding pipe 13 and the second feeding pipe 14. A first feed tank 21 and a second feed tank 22 are arranged side-by-side on the horizontal mounting frame 2. Both the first feed tank 21 and the second feed tank 22 are inclined. Both the first feed tank 21 and the second feed tank 22 include an inlet end 23 and an outlet end 24. The position of the inlet end 23 is... At a position higher than the discharge end 24, the lower end of the first feeding pipe 13 is connected to the feed end 23 of the first feeding tank 21, and the lower end of the second feeding pipe 14 is connected to the feed end 23 of the second feeding tank 22. A discharge component 25 connected to the discharge end 24 is provided on the horizontal mounting frame 2. A dehumidification mechanism 3 is provided at the bottom of the horizontal mounting frame 2. The dehumidification mechanism 3 includes an air inlet connector 312 and an air outlet connector 313. Both the first feeding tank 21 and the second feeding tank 22 are provided with an air intake component 26 and an air outlet component 27. The air inlet connector 312 is connected to the air intake component 26 through an air inlet connecting pipe 33, and the air outlet connector 313 is connected to the air outlet component 27 through an air outlet connecting pipe 34.

[0025] Specifically, the vertical mounting frame 1 and the horizontal mounting frame 2 are fixed together. The height of the vertical mounting frame 1 is greater than the height of the horizontal mounting frame 2. The vertical mounting frame 1 is used for the installation of the automatic feeding mechanism 11, and the horizontal mounting frame 2 is used for the installation of the first feed tank 21, the second feed tank 22 and the dehumidification mechanism 3. The automatic feeding mechanism 11 includes a feeding box 12, which can receive trimethylolpropane solid raw material. A first feeding pipe 13 and a second feeding pipe 14 are provided at the bottom of the feeding box 12. The first feeding pipe 13 and the second feeding pipe 14 are two independent pipes. The trimethylolpropane raw material in the feeding box 12 can be output through the first feeding pipe 13 and the second feeding pipe 14. In use, the trimethylolpropane solid raw material is transported into the feeding box 12 and output to the first feeding pipe 13 or the second feeding pipe 14 through the feeding box 12. A control valve is provided on the first feeding pipe 13 and the second feeding pipe 14. The control valve can control the first feeding pipe 13 and the second feeding pipe 14, so that the first feeding pipe 13 and the second feeding pipe 14 are opened or closed.

[0026] In this embodiment, a first feed tank 21 and a second feed tank 22 are provided on the horizontal mounting frame 2. The first feed tank 21 and the second feed tank 22 have the same structure and are arranged side by side on the horizontal mounting frame 2. The first feed tank 21 and the second feed tank 22 include a feed end 23 and a discharge end 24. The feed end 23 is located directly below the feeding box 12. The first feed tank 21 and the second feed tank 22 are both arranged at an inclination, so that the position of the feed end 23 is higher than the position of the discharge end 24. This facilitates the feeding of trimethylolpropane raw material in the first feed tank. The conveying inside the first feed tank 21 and the second feed tank 22 is provided by a discharge component 25 connected to the discharge end 24 on the horizontal mounting frame 2. The discharge component 25 is connected to the discharge end 24 of the first feed tank 21 and the second feed tank 22, so that the trimethylolpropane raw material in the first feed tank 21 and the second feed tank 22 can be output. The feed end 23 of the first feed tank 21 and the second feed tank 22 are both provided with a feeding structure. The lower end of the first feeding pipe 13 is connected to the feeding structure of the first feed tank 21, and the lower end of the second feeding pipe 14 is connected to the feeding structure of the second feed tank 22.

[0027] During use, different modes are used depending on the conveying requirements of trimethylolpropane raw material. For example, during use, the first feeding pipe 13 is opened and the second feeding pipe 14 is closed. In this way, a certain amount of trimethylolpropane raw material is conveyed to the first feed tank 21 through the first feeding pipe 13. Then, the first feeding pipe 13 is closed and the second feeding pipe 14 is opened. In this way, a certain amount of trimethylolpropane raw material is conveyed to the second feed tank 22 through the second feeding pipe 14. During this process, the trimethylolpropane raw material in the first feed tank 21 is dehumidified by the dehumidification mechanism 3. After the dehumidification of the trimethylolpropane raw material in the first feed tank 21 is completed, the trimethylolpropane raw material is conveyed from the discharge device 25 to the reaction device. The discharge device 25 can also be equipped with a metering structure that can measure the trimethylolpropane raw material. Alternatively, both the first feeding pipe 13 and the second feeding pipe 14 can be opened. In this case, the trimethylolpropane raw material in the feeding box 12 is transported to the first feed tank 21 and the second feed tank 22 through the first feeding pipe 13 and the second feeding pipe 14, respectively. During this process, the dehumidification mechanism 3 works continuously. As the trimethylolpropane raw material is transported along the first feed tank 21 and the second feed tank 22, the dehumidification mechanism 3 performs a dehumidification operation on the trimethylolpropane raw material in the first feed tank 21 and the second feed tank 22. The dehumidified trimethylolpropane raw material is transported from the discharge part 25 to the reaction device. In this mode, the first feed tank 21 and the second feed tank 22 are fed synchronously. However, due to the presence of the first feed tank 21 and the second feed tank 22, the amount of raw material in the first feed tank 21 and the second feed tank 22 will be less, thus improving the dehumidification effect of the trimethylolpropane raw material.

[0028] In this embodiment, the dehumidification mechanism 3 is mounted on the horizontal mounting frame 2 and located at the bottom of the first feed tank 21 and the second feed tank 22. The dehumidification mechanism 3 includes a dehumidifier 31, which is provided with an air inlet connector 312 and an air outlet connector 313. Both the first feed tank 21 and the second feed tank 22 are provided with an air intake component 26 and an air outlet component 27. The air inlet connector 312 is connected to the air intake component 26 through an air intake connecting pipe 33, and the air outlet connector 313 is connected to the air outlet component 27 through an air outlet connecting pipe 34. The dehumidification mechanism 3 operates to dehumidify the first feed tank 21 as follows: The dehumidifier 31 operates, and the gas inside the first feed tank 21 is conveyed through the suction component 26 to the inlet connecting pipe 33, and then through the inlet connector 312 to the dehumidifier 31. Dehumidification occurs within the dehumidifier 31, and finally, the dehumidified air is conveyed back to the first feed tank 21 through the outlet connector 313, the outlet connecting pipe 34, and the outlet component 27. The dehumidification mechanism 3 operates to dehumidify the second feed tank 22 in the same way as the first feed tank 21. The dehumidifier 31 operates, and the gas inside the second feed tank 22 is conveyed through the suction component 26 to the inlet connecting pipe 33, and then through the inlet connector 312 to the dehumidifier 31. Dehumidification occurs within the dehumidifier 31, and finally, the dehumidified air is conveyed back to the second feed tank 22 through the outlet connector 313, the outlet connecting pipe 34, and the outlet component 27. To ensure smooth gas delivery, an air pump can be installed between the dehumidification mechanism 3, the first feed tank 21, and the second feed tank 22.

[0029] The automatic feeding device for solid trimethylolpropane provided by this utility model includes a vertical mounting frame 1 and a horizontal mounting frame 2. An automatic feeding mechanism 11 is mounted on the vertical mounting frame 1. The automatic feeding mechanism 11 includes a feeding box 12 and a first feeding pipe 13 and a second feeding pipe 14 disposed at the bottom of the feeding box 12. A first feed tank 21 and a second feed tank 22 are arranged side-by-side on the horizontal mounting frame 2. The lower end of the first feeding pipe 13 is connected to the feed end 23 of the first feed tank 21, and the lower end of the second feeding pipe 14 is connected to the feed end of the second feed tank 22. The end 23 is connected, and the horizontal mounting frame 2 is provided with a discharge part 25 connected to the discharge end 24. The bottom of the horizontal mounting frame 2 is provided with a dehumidification mechanism 3. Thus, the feeding box 12, the first feeding tank 21 and the second feeding tank 22 can cooperate to form different feeding operations. The dehumidification mechanism 3 can absorb the gas in the first feeding tank 21 and the second feeding tank 22 for dehumidification. The dehumidified gas is transported to the first feeding tank 21 and the second feeding tank 22, so that the solid trimethylolpropane can remove moisture during the feeding process.

[0030] In this embodiment, preferably, a screw conveyor 29 is provided in both the first feed tank 21 and the second feed tank 22. The screw conveyor 29 includes a drive unit and a rotating rod, and a helical blade is provided on the rotating rod. Under the drive of the drive unit, the rotating rod and the helical blade can rotate in the first feed tank 21 and the second feed tank 22. This can both turn over the trimethylolpropane raw material in the first feed tank 21 and the second feed tank 22 to improve the dehumidification effect, and also ensure that the trimethylolpropane raw material can be transported from the feed end 23 to the discharge end 24.

[0031] In this embodiment, preferably, the dehumidification mechanism 3 includes a dehumidifier 31, which has a heating chamber inside. The heating chamber is equipped with a heating component 311. The air inlet connector 312 and the air outlet connector 313 are both connected to the heating chamber. The heating component 311 can be an electric heating element in the prior art. When air is delivered to the heating chamber, the heating component 311 heats the air to remove the moisture. The heated air can be directly delivered back to the first feed tank 21 and the second feed tank 22, or it can be cooled before being delivered to the first feed tank 21 and the second feed tank 22. The dehumidifier 31 can also be equipped with an external air intake structure, which can deliver external air to the heating chamber. In this way, the external air intake structure can be opened or closed as needed during use.

[0032] In this embodiment, preferably, the dehumidification mechanism 3 includes a filter 32, which is disposed on one side of the dehumidifier 31. The filter 32 has an air inlet chamber that communicates with the heating chamber, and the air inlet connector 312 is connected to the air inlet chamber. The filter 32 can filter the gas. Thus, before the gas from the first feed tank 21 and the second feed tank 22 is delivered to the heating chamber, it is first filtered by the filter 32 to filter the dust and particles in the gas. The filter 32 can adopt a structure that can filter gas in the prior art, which will not be described in detail.

[0033] In this embodiment, preferably, the suction component 26 includes an arc-shaped suction plate 261, which is fixedly installed on the first feed tank 21 and the second feed tank 22. The arc-shaped suction plate 261 is provided with a plurality of suction heads 262, the air inlet end of the suction head 262 is connected to the interior of the first feed tank 21 and the second feed tank 22, the interior of the arc-shaped suction plate 261 is provided with a suction chamber, which is connected to each suction head 262, and the arc-shaped suction plate 261 is provided with a suction branch pipe 263, which is connected to the air inlet connecting pipe 33. Mounting holes for installing suction heads 262 are provided on the first feed tank 21 and the second feed tank 22. Multiple suction heads 262 are arranged sequentially at intervals along the axial direction of the first feed tank 21 and the second feed tank 22. Suction pipes 263 are provided as needed, and can be one, two, three or more. A suction pump is connected to the air inlet connection pipe 33. In this way, the air in the first feed tank 21 and the second feed tank 22 is transported to the suction chamber through multiple suction heads 262, and then transported to the air inlet connector 312 from the suction pipe 263 and the air inlet connection pipe 33.

[0034] In this embodiment, preferably, the air outlet component 27 includes an arc-shaped air outlet plate 271, which is fixedly installed on the first feed tank 21 and the second feed tank 22. The arc-shaped air outlet plate 271 is provided with multiple air outlet heads, the air inlet ends of which are connected to the interior of the first feed tank 21 and the second feed tank 22. The arc-shaped air outlet plate 271 has an air outlet chamber inside, which is connected to each air outlet head. An air outlet branch pipe 272 is provided on the arc-shaped air outlet plate 271, and the air outlet branch pipe 272 is connected to the air outlet connecting pipe 3. 4 are connected; the first feed tank 21 and the second feed tank 22 are provided with mounting holes for installing air outlets. Multiple air outlets are arranged sequentially at intervals along the axial direction of the first feed tank 21 and the second feed tank 22. The air outlet branch pipe 272 is set as needed, and can be one, two, three or more. In this way, the dehumidified gas in the dehumidifier 31 is dispersed and transported to the first feed tank 21 or the second feed tank 22 through the air outlet connector 313, the air outlet connecting pipe 34, the arc-shaped air outlet plate 271 and the air outlet.

[0035] In this embodiment, preferably, the first feed tank 21 and the second feed tank 22 are also provided with arc-shaped filter screens 28, and the suction head 262 and the exhaust head are covered with arc-shaped filter screens 28. Multiple suction heads 262 are connected to a common arc-shaped filter screen 28, and multiple exhaust heads are also connected to a common arc-shaped filter screen 28. The arc-shaped filter screen 28 can filter the gas and prevent dust or particles from entering the suction head 262 and the exhaust head.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic feeding device for solid trimethylolpropane, characterized in that, The system includes a vertical mounting frame and a horizontal mounting frame. The vertical mounting frame is equipped with an automatic feeding mechanism, which includes a feeding box and a first feeding pipe and a second feeding pipe located at the bottom of the feeding box. Both the first and second feeding pipes are equipped with control valves. The horizontal mounting frame has a first feed tank and a second feed tank arranged side-by-side, both inclined. Each feed tank includes an inlet end and an outlet end, with the inlet end positioned higher than the outlet end. The lower end of the feed pipe is connected to the feed end of the first feed tank, and the lower end of the second feed pipe is connected to the feed end of the second feed tank. A discharge component connected to the discharge end is provided on the horizontal mounting frame. A dehumidification mechanism is provided at the bottom of the horizontal mounting frame. The dehumidification mechanism includes an air inlet connector and an air outlet connector. Both the first feed tank and the second feed tank are provided with an air intake component and an air outlet component. The air inlet connector is connected to the air intake component through an air intake connecting pipe, and the air outlet connector is connected to the air outlet component through an air outlet connecting pipe.

2. The automatic feeding device for solid trimethylolpropane according to claim 1, characterized in that, The dehumidification mechanism includes a dehumidifier, which has a heating chamber inside. The heating chamber is equipped with a heating component, and the air inlet and outlet are both connected to the heating chamber.

3. The automatic feeding device for solid trimethylolpropane according to claim 2, characterized in that, The dehumidification mechanism includes a filter, which is disposed on one side of the dehumidifier. The filter has an air inlet chamber that communicates with the heating chamber, and the air inlet connector is connected to the air inlet chamber.

4. The automatic feeding device for solid trimethylolpropane according to claim 3, characterized in that, The suction component includes an arc-shaped suction plate, which is fixedly installed on the first feed tank and the second feed tank. The arc-shaped suction plate is provided with multiple suction heads, and the air inlet end of the suction head is connected to the interior of the first feed tank and the second feed tank.

5. The automatic feeding device for solid trimethylolpropane according to claim 4, characterized in that, The arc-shaped air intake plate has an air intake chamber inside, which is connected to each of the air intake heads. The arc-shaped air intake plate is provided with an air intake branch pipe, which is connected to the air inlet connection pipe.

6. The automatic feeding device for solid trimethylolpropane according to claim 4, characterized in that, The air outlet component includes an arc-shaped air outlet plate, which is fixedly installed on the first feed tank and the second feed tank. The arc-shaped air outlet plate is provided with a plurality of air outlet heads, and the air outlet ends of the air outlet heads are connected to the interior of the first feed tank and the second feed tank.

7. The automatic feeding device for solid trimethylolpropane according to claim 6, characterized in that, The arc-shaped air outlet plate has an air outlet chamber inside, which is connected to each of the air outlet heads. The arc-shaped air outlet plate is provided with an air outlet branch pipe, which is connected to the air outlet connecting pipe.

8. The automatic feeding device for solid trimethylolpropane according to claim 7, characterized in that, The first and second feed tanks are also equipped with arc-shaped filter screens, and the air intake head and the air outlet head are covered with the arc-shaped filter screens.

9. The automatic feeding device for solid trimethylolpropane according to claim 1, characterized in that, It also includes a screw conveyor, which is installed in both the first feed tank and the second feed tank.

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