A kind of hydrotalcite-like modified biodegradable mulching film processing device and its processing method

Abstract

The application discloses a mulch film processing device, in particular to a hydrotalcite-like modified biodegradable mulch film processing device and a processing method thereof, which comprises a tank body, a partition plate is arranged above the tank body, the partition plate divides the upper part of the tank body into an inner chamber and an outer chamber, a first filter screen is arranged between the inner chamber and the inner space of the tank body, and a second filter screen is arranged between the outer chamber and the inner space of the tank body. The first filter screen and the second filter screen are alternately used as an air filter and a reverse blowing cleaner, effective intermittent cleaning of the filter screen is realized, the smoothness of material flow in the processing process is ensured, and production interruption and efficiency reduction caused by filter screen blockage are avoided. High-speed airflow generated by a high-pressure fan blows the material in the tank body through blowing through-holes, efficient stirring effect is realized, the stirring time is shortened, the uniformity of material mixing is improved, and the subsequent granulation and film blowing processes can be smoothly carried out.

Description

Technical Field

[0001] This invention relates to the field of processing equipment technology, and in particular to a processing device and method for hydrotalcite-modified biodegradable mulch film. Background Technology

[0002] With the development of agricultural modernization, the application of plastic film in agricultural production is becoming increasingly widespread. Plastic film can effectively increase soil temperature, reduce water evaporation, suppress weed growth, and increase crop yield. However, traditional polyethylene (PE) plastic film is difficult to degrade, causing serious white pollution to the environment. To solve this problem, researchers have developed various biodegradable plastic films. Among them, hydrotalcite-modified biodegradable plastic film has gradually become a research hotspot due to its good degradation performance and excellent mechanical properties. Current processing methods for hydrotalcite-modified biodegradable plastic film mainly include material mixing, granulation, and blown film production. However, existing processing equipment has some problems, such as uneven mixing and high energy consumption. Summary of the Invention

[0003] In order to solve the problems existing in the prior art, the present invention provides a processing device and processing method for hydrotalcite-modified biodegradable mulch film, so as to solve the current technical problems.

[0004] The technical solution adopted by this invention to solve its technical problem is: This invention provides a processing device and method for hydrotalcite-modified biodegradable mulch film, comprising: a tank, a partition plate disposed above the tank, the partition plate dividing the upper part of the tank into an inner chamber and an outer chamber, a first filter screen disposed between the inner chamber and the internal space of the tank, and a second filter screen disposed between the outer chamber and the internal space of the tank.

[0005] Preferably, a first conduit is connected to the inner chamber, a second conduit is connected to the outer chamber, both the first and second conduits are connected to a third conduit, the third conduit is connected to a first inspection pipe, a first valve is provided on the first conduit, and a second valve is provided on the second conduit.

[0006] Preferably, a fourth conduit is connected to the first inspection pipe, the fourth conduit is connected to the air blowing box, the air blowing box is provided with a plurality of air blowing holes, and the air blowing holes communicate with the internal space of the tank.

[0007] Preferably, a high-pressure blower is provided on the fourth duct, and the airflow direction of the high-pressure blower is from the first inspection pipe to the air blowing box.

[0008] Preferably, the air blowing box is connected to a fifth conduit, the fifth conduit is connected to a second inspection pipe, the second inspection pipe is connected to a sixth conduit, and the sixth conduit is connected to a seventh conduit and an eighth conduit.

[0009] Preferably, the seventh catheter is connected to the inner chamber, the eighth catheter is connected to the outer chamber, the seventh catheter is provided with a seventh valve, and the eighth catheter is provided with an eighth valve.

[0010] Preferably, a first baffle is provided in the inner cavity, which is disposed between the first filter and the first conduit, and a second baffle is provided in the outer cavity, which is disposed between the second filter and the second conduit.

[0011] Preferably, a feeding port is provided on the side of the tank, and a door for closing the feeding port is provided on the feeding port.

[0012] Preferred methods include the following: Step 1: Add the materials to be mixed into the tank according to the ratio and close the tank door; Step 2: Open the first valve and the eighth valve, and close the second valve and the seventh valve. At this time, the first filter screen is used to filter the air, and the second filter screen is cleaned by the airflow in the eighth duct. Step 3: Turn on the high-pressure blower. The high-speed airflow blows the material in the mixing tank through the air blowing hole and mixes for 2-3 minutes. Step 4: Close the first and eighth valves, open the second and seventh valves, and continue stirring for 2-3 minutes. At this time, the second filter screen is used to filter the air, and the first filter screen is cleaned by the airflow in the seventh duct. This can effectively clean the first and second filter screens intermittently. Step 5: Turn off the high-pressure blower, open the box door, take out the material, put it into the granulator, extrude it at 135-160℃, and air-cool it to granulate it to obtain blown film material; Step 6: The blown film material is blown on the blown film machine.

[0013] The beneficial effects of this invention are: Filter cleaning mechanism: By alternating the use of the first and second filters as air filters and reverse air cleaning devices, effective intermittent cleaning of the filters is achieved, ensuring smooth material flow during processing and avoiding production interruptions and efficiency reductions caused by filter clogging.

[0014] High-efficiency mixing: The high-speed airflow generated by the high-pressure blower blows the material in the tank through the air blowing holes, achieving a high-efficiency mixing effect. This not only shortens the mixing time but also improves the uniformity of material mixing, which is beneficial to the smooth progress of subsequent granulation and blown film processes.

[0015] The structural design is reasonable: the baffle plate on top of the tank divides the internal space into an inner chamber and an outer chamber. Combined with the placement of the first and second filters, the entire device has a compact structure, clear functions, and is easy to operate and maintain. At the same time, the placement of the first and second baffles helps guide the material flow and improves the mixing efficiency.

[0016] The processing method is simple: through simple operation steps, the entire process from material mixing to the preparation of blown film material and finally to the blown film process is simple and easy to carry out, reducing the difficulty of operation and improving production efficiency.

[0017] Environmentally friendly and sustainable: The hydrotalcite-like modified biodegradable mulch film prepared by this invention has good biodegradability and can degrade rapidly in the natural environment without causing pollution to the soil and the environment, which meets the requirements of environmental protection and sustainable development. Attached Figure Description

[0018] The above-described aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of the hydrotalcite-modified biodegradable mulch film processing device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the hydrotalcite-modified biodegradable mulch film processing device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the hydrotalcite-modified biodegradable mulch film processing device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the hydrotalcite-modified biodegradable mulch film processing device according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the hydrotalcite-modified biodegradable mulch film processing device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the hydrotalcite-modified biodegradable mulch film processing device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the hydrotalcite-modified biodegradable mulch film processing device according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures

[0020] exist Figures 1-7In the middle, there are: tank body 1; eighth valve 2; eighth conduit 3; sixth conduit 4; second conduit 5; second valve 6; seventh conduit 7; seventh valve 8; first conduit 9; first valve 10; third conduit 11; second baffle 12; first baffle 13; second filter screen 14; first filter screen 15; baffle plate 16; first inspection pipe 17; second inspection pipe 18; air blowing box 19; air blowing through hole 20; fourth conduit 21; fifth conduit 22; and high-pressure blower 23. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention provides a processing device and method for hydrotalcite-modified biodegradable mulch film, comprising: a tank 1, with a partition 16 disposed above the tank 1, dividing the upper part of the tank 1 into an inner chamber and an outer chamber; a first filter 15 is disposed between the inner chamber and the interior space of the tank 1, and a second filter 14 is disposed between the outer chamber and the interior space of the tank 1. The tank 1 is a metal tank, the partition 16 is an annular baffle, and both the first filter 15 and the second filter 14 are air filters used to prevent impurities from entering the high-pressure blower 23.

[0023] The inner chamber is connected to a first conduit 9, and the outer chamber is connected to a second conduit 5. Both the first conduit 9 and the second conduit 5 are connected to a third conduit 11, which is connected to a first inspection pipe 17. A first valve 10 is installed on the first conduit 9, and a second valve 6 is installed on the second conduit 5. The first conduit 9, the second conduit 5, the third conduit 11, the fourth conduit 21, the fifth conduit 22, the sixth conduit 4, the seventh conduit 7, and the eighth conduit 3 are all metal pipes or high-pressure hoses. The first inspection pipe 17 and the second inspection pipe 18 are metal square tubes arranged side by side, and a glass window can be installed on them to facilitate observation of whether there are particulate impurities inside the pipes.

[0024] A fourth conduit 21 is connected to the first inspection pipe 17. The fourth conduit 21 is connected to the air blowing box 19. The air blowing box 19 is provided with several air blowing holes 20, which communicate with the internal space of the tank 1. The air blowing box 19 is a metal box.

[0025] A high-pressure blower 23 is installed on the fourth duct 21. The airflow direction in the high-pressure blower 23 is from the first inspection pipe 17 to the air blowing box 19. The high-pressure blower 23 can be made using existing technology, and a centrifugal blower is preferred.

[0026] The air blowing box 19 is connected to the fifth conduit 22, which is connected to the second inspection pipe 18. The second inspection pipe 18 is connected to the sixth conduit 4, which is connected to the seventh conduit 7 and the eighth conduit 3.

[0027] The seventh catheter 7 is connected to the inner chamber, and the eighth catheter 3 is connected to the outer chamber. The seventh catheter 7 is equipped with a seventh valve 8, and the eighth catheter 3 is equipped with an eighth valve 2.

[0028] The inner chamber is provided with a first baffle plate 13, which is located between the first filter screen 15 and the first conduit 9. The outer chamber is provided with a second baffle plate 12, which is located between the second filter screen 14 and the second conduit 5. Both the first baffle plate 13 and the second baffle plate 12 are metal plates, located at the conduit opening, with a distance of 1-2 cm between them and the conduit opening. The distance between them and the filter screen is greater than 2 cm. Their shape is similar to the corresponding filter screen, but their area is half of the filter screen. Their function is to minimize the pressure difference (suction) between the inside and outside of the filter screen at different locations.

[0029] A feeding port is provided on the side of the tank body 1, and a door for closing the feeding port is provided on the feeding port.

[0030] The following processing methods are included: Step 1: Add the materials to be mixed into tank 1 according to the ratio, and close the tank door; Step 2: Open the first valve 10 and the eighth valve 2, and close the second valve 6 and the seventh valve 8. At this time, the first filter screen 15 is used to filter the air, and the second filter screen 14 is cleaned by the airflow in the eighth duct 3. Step 3: Turn on the high-pressure blower 23. The high-speed airflow blows the material in the mixing tank 1 through the air blowing hole 20 and mixes for 2-3 minutes. Step 4: Close the first valve 10 and the eighth valve 2, open the second valve 6 and the seventh valve 8, and continue stirring for 2-3 minutes. At this time, the second filter screen 14 is used to filter the air, and the first filter screen 15 is cleaned by the airflow in the seventh conduit 7. This can effectively clean the first filter screen 15 and the second filter screen 14 intermittently. Step 5: Turn off the high-pressure blower 23, open the box door, take out the material, put it into the granulator, extrude it at 135-160℃, and air-cool it to granulate it to obtain blown film material; Step 6: The blown film material is blown on the blown film machine.

[0031] By alternating the use of the first filter screen 15 and the second filter screen 14 as air filters and reverse air cleaners, effective intermittent cleaning of the filter screens is achieved, ensuring the smooth flow of materials during processing and avoiding production interruptions and efficiency reductions caused by filter screen clogging.

[0032] The high-speed airflow generated by the high-pressure blower 23 blows the material in the tank 1 through the air blowing hole 20, achieving a highly efficient stirring effect. This not only shortens the stirring time but also improves the uniformity of material mixing, which is beneficial to the smooth progress of subsequent granulation and blown film processes.

[0033] The baffle 16 above the tank 1 divides the internal space into an inner chamber and an outer chamber. Combined with the arrangement of the first filter 15 and the second filter 14, the entire device has a compact structure, clear functions, and is easy to operate and maintain. At the same time, the arrangement of the first baffle 13 and the second baffle 12 helps to guide the flow of materials and improve the stirring efficiency.

[0034] Through simple operating steps, the entire process, from material mixing to the preparation of blown film material and finally to the blown film process, is simple and easy to carry out, reducing the difficulty of operation and improving production efficiency.

[0035] The hydrotalcite-like modified biodegradable mulch film prepared by this invention has good biodegradability and can degrade rapidly in the natural environment without causing pollution to the soil and the environment, which meets the requirements of environmental protection and sustainable development.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A processing device for hydrotalcite-modified biodegradable mulch film, comprising: The tank body is characterized in that: a partition is provided above the tank body, the partition dividing the upper part of the tank body into an inner chamber and an outer chamber; a first filter screen is provided between the inner chamber and the internal space of the tank body, and a second filter screen is provided between the outer chamber and the internal space of the tank body; a first conduit is connected to the inner chamber, and a second conduit is connected to the outer chamber; both the first and second conduits are connected to a third conduit, and the third conduit is connected to a first inspection pipe; a first valve is provided on the first conduit, and a second valve is provided on the second conduit; the first inspection pipe... A fourth conduit is connected to the upper part of the tank, which is connected to the air blowing box. The air blowing box is provided with several air blowing holes, which communicate with the internal space of the tank. A high-pressure blower is provided on the fourth conduit, and the airflow direction of the high-pressure blower is from the first inspection pipe to the air blowing box. A fifth conduit is connected to the air blowing box, which is connected to the second inspection pipe. The second inspection pipe is connected to the sixth conduit, which is connected to the seventh and eighth conduits. The seventh conduit is connected to the inner chamber, and the eighth conduit is connected to the outer chamber.

2. The hydrotalcite-modified biodegradable mulch film processing device according to claim 1, characterized in that: The inner cavity is provided with a first baffle plate, which is disposed between the first filter and the first conduit. The outer cavity is provided with a second baffle plate, which is disposed between the second filter and the second conduit.

3. The hydrotalcite-modified biodegradable mulch film processing device according to claim 1, characterized in that: The tank body is provided with a feeding port on its side, and the feeding port is provided with a door for closing the feeding port.

4. A method for processing hydrotalcite-modified biodegradable mulch film, characterized in that: The hydrotalcite-modified biodegradable mulch film processing apparatus according to claim 1 further includes the following processing method: Step 1: Add the materials to be mixed into the tank according to the ratio and close the tank door; Step 2: Open the first valve and the eighth valve, and close the second valve and the seventh valve; Step 3: Turn on the high-pressure blower. The high-speed airflow blows the material in the mixing tank through the air blowing hole and mixes for 2-3 minutes. Step 4: Close the first and eighth valves, open the second and seventh valves, and continue stirring for 2-3 minutes; Step 5: Turn off the high-pressure blower, open the box door, take out the material, put it into the granulator, extrude it at 135-160℃, and air-cool it to granulate it to obtain blown film material; Step 6: The blown film material is blown on the blown film machine.

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