Straw in-situ semi-carbonization field returning device

Abstract

The straw in-situ semi-carbonization field returning device comprises a supporting frame, a rotary cultivator is installed on the rear side of the supporting frame, a gas tank is installed on the rotary cultivator, a gas outlet of the gas tank is connected with a gas conveying hose, and the gas conveying hose is connected with a gas conveying steel pipe; the fire shielding cover is fixed on the support frame and is positioned on the front side of the rotary cultivator; the gas collecting pipe is connected with the gas conveying steel pipe; the flame spray guns are integrated on the gas collecting pipe; and the straw throwing mechanism is arranged on the fire shielding cover. Straw which is still not combusted is thrown to the position below the flame spray gun through the straw throwing mechanism to be combusted again, the straw combustion carbonization effect is guaranteed, the fire shielding cover restrains open fire from overflowing, the risk that fire cannot be controlled due to the fact that the open fire ignites the straw outside the fire shielding cover is avoided, the rotary cultivator conducts burying treatment on ash generated after straw combustion, and the environment is protected. The ash is buried in the soil, so that the degradation of the straws is accelerated, the unburnt straws are prevented from generating smoke to pollute the environment, and meanwhile, pest eggs on the earth surface and in the soil can be killed.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and more particularly to an in-situ semi-carbonized straw returning device. Background Art

[0002] Comprehensive utilization of straw is an important part of agricultural development and an important development direction of the modern agricultural industry technology system. In recent years, the country has advocated returning straw to the field, which has promoted the comprehensive utilization of straw. However, there are also certain problems in the utilization of straw. As one of the most convenient and simple ways to utilize straw, the technology of returning straw to the field has become relatively mature. Returning straw to the field is mainly divided into straw crushing and deep plowing, straw covering and returning straw to the field, composting and returning straw to the field, burning and returning straw to the field, and returning straw to the field through the belly. Returning straw to the field can effectively reduce the pollution caused by its burning, improve the content of soil organic matter, and improve soil bulk density, compactness, temperature, porosity, and moisture content. However, returning straw to the field also has certain disadvantages. After returning straw to the field, it is difficult to decompose. Excessive returning straw to the field may cause microorganisms to multiply in large numbers, and microorganisms compete with plants for water, resulting in crop yield reduction. Returning straw to the field increases soil looseness and reduces the chance of contact between seeds and soil, which leads to difficulties in germination. In addition, returning straw to the field is prone to diseases and insect pests.

[0003] At present, domestic scholars have conducted a lot of research on straw carbonization and field return technology, such as CN114868475A-A pollution-free straw field return vehicle. Straw carbonization and field return can effectively avoid the negative impact of excessive straw return. The effect of biochar on soil physical and chemical properties and nutrients, crop yield and quality. The application of biochar to the soil can improve soil structure, enhance fertilizer storage and water retention capacity, increase soil nutrient content, promote plant mycorrhizal growth, and thus increase crop yield and quality. Burning straw and returning it to the field can avoid the occurrence of pests and diseases and improve the utilization efficiency of some nutrients in the straw.

[0004] However, the above-mentioned straw return vehicle still has certain problems in use: (1) When the straw layer is thick, the flame spray gun cannot burn the straw deep inside, resulting in incomplete carbonization of the straw; (2) When the combustion chamber is moving, the left and right sides of the open lower end do not have the function of isolating the straw inside and outside the combustion chamber, so that when the straw in the combustion chamber burns, it will ignite the straw outside the left and right sides of the combustion chamber, thereby posing a risk of uncontrollable fire and poor safety of use.

[0005] Therefore, how to provide a straw in-situ semi-carbonization and returning device that can fully burn the straw and is safer to use is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0006] In view of this, the present invention provides a straw in-situ semi-carbonization and field returning device which can fully burn the straw and is safer to use.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A straw in-situ semi-carbonization returning device, comprising:

[0009] A support frame, the front side of the support frame can be hung on the tractor, a rotary tiller is installed on the rear side of the support frame, a gas tank is installed on the rotary tiller, a gas outlet of the gas tank is connected to a gas hose, the gas hose is connected to a gas steel pipe, the gas steel pipe is fixedly connected to the rotary tiller through a connecting rod, and a gas valve is provided on the gas steel pipe;

[0010] A fire shield, which is fixed on the support frame and located at the front side of the rotary tiller, with the hood opening of the fire shield facing downward;

[0011] A gas collecting pipe, the gas collecting pipe is located inside the fire shield, and the gas collecting pipe is connected to the gas transmission steel pipe;

[0012] A flame spray gun, wherein the flame spray gun is connected to the gas collecting pipe in a plurality, the plurality of the flame spray guns are arranged in a row, the flame spray guns are arranged with the flame spraying direction facing downward, and an igniter is provided inside the flame spray gun;

[0013] A straw throwing mechanism is arranged on the fire shield and is used for throwing unburned straw to a position below the flame spray gun.

[0014] It can be seen from the above technical scheme that compared with the prior art, the present invention discloses an in-situ semi-carbonization and returning device for straw to the field. During operation, the gas valve and the igniter are opened, the igniter ignites the gas spray gun, and the gas spray gun burns the straw. The straw throwing mechanism throws the unburned straw after being burned by the gas spray gun to the position below the flame spray gun for re-burning, thereby ensuring the carbonization effect of the straw combustion, and the fire shield suppresses the spillage of open flames to avoid the risk of open flames igniting the straw outside the fire shield and causing uncontrollable fire. Then, the ashes produced after the straw is burned are buried by a rotary tiller, so that the ashes are buried in the soil, which accelerates the degradation of the straw and prevents the unburned straw from producing smoke to pollute the environment, while killing pest eggs on the surface and in the soil.

[0015] Furthermore, the straw throwing mechanism comprises:

[0016] A motor, wherein the motor is fixed on a side plate of the fire shield;

[0017] A rotating shaft, wherein the rotating shaft is horizontally placed in the fire shield, one end of the rotating shaft is fixedly connected to the output end of the motor, and the other end of the rotating shaft is rotatably connected to the other side plate of the fire shield;

[0018] A throwing rod, wherein the throwing rod is a plurality of rods fixed on the rotating shaft and is used for throwing unburned straw to a position below the flame spray gun.

[0019] The beneficial effect of adopting the above technical solution is: the motor drives the rotating shaft to rotate, and the rotating shaft drives the throwing rod thereon to throw the unburned straw after being burned by the gas spray gun to the position below the flame spray gun for re-burning, thereby ensuring the carbonization effect of straw combustion.

[0020] Furthermore, the flame spray guns are arranged in two rows front and back, and the rotating shaft is located between the two rows of flame spray guns.

[0021] The beneficial effects of the above technical solution are as follows: the flame spray guns located in the front row burn the straw once, and the spray guns located in the rear side burn the straw twice, and the throwing rods on the rotating shaft can throw the unburned straw to the positions of the flame spray guns in the front row and the flame spray guns in the rear row respectively during the rotation process, thereby improving the effect of full combustion and carbonization of the straw.

[0022] Furthermore, a plurality of air holes are provided on the outer wall of the fire shield.

[0023] The beneficial effect of adopting the above technical solution is that the external air enters the fire shield through the air holes to ensure the full combustion of the gas in the middle of the fire shield and ensure the combustion and carbonization of the straw.

[0024] Furthermore, straw partitions for separating the straw inside and outside the fire shield are fixed to the bottom ends of the left and right side plates of the fire shield.

[0025] The beneficial effect of adopting the above technical solution is that when the fire shield is moving, the straw partitions on the left and right sides of the fire shield can be inserted into the straw layer, thereby separating the straw inside and outside the fire shield, preventing the burning straw on both sides of the fire shield from igniting the straw on the left and right sides of the fire shield, causing the risk of uncontrollable fire.

[0026] Furthermore, the fire shield is arranged away from the rotary tiller.

[0027] The beneficial effects of adopting the above technical solution are: lengthening the distance between the rapid carbonization at the front end and the rotary tillage at the rear end, so that there is a short cooling zone between the carbonization and rotary tillage of the straw, improving the brittleness of the straw and increasing the service life of the rotary tiller by reducing the contact between the rotary tiller and open flames.

[0028] Furthermore, a supporting wheel frame is provided on the supporting frame, and the supporting wheel frame is located at the front side of the fire shield.

[0029] The beneficial effect of adopting the above technical solution is: improving the stability of the entire device.

[0030] Furthermore, a temperature sensor is fixed inside the fire shield, an alarm is fixed on the support frame, and the temperature sensor and the alarm are both electrically connected to the traction machine.

[0031] The beneficial effect of adopting the above technical scheme is: after the carbonization work is completed, when the temperature sensor detects that the temperature of the fire shield is high, the alarm will sound, so as to remind relevant personnel that the temperature of the fire shield is high and not to touch it to prevent burns. When the temperature sensor detects that the temperature of the fire shield drops to a certain temperature, the alarm will no longer sound. At this time, it is convenient to remind personnel that they can touch the fire shield, such as sitting down on the fire shield to rest, or inspecting the flame spray gun inside the fire shield. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 A schematic structural diagram of a straw in-situ semi-carbonization and returning-to-field device provided by the present invention.

[0034] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of local A in the middle.

[0035] Figure 3 This is a schematic diagram of the main view of the fire hood. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] like Figure 1-Figure 3 As shown, the embodiment of the present invention discloses a straw in-situ semi-carbonization returning device, which is characterized by comprising:

[0038] A support frame 1, the front side of the support frame 1 can be hung on a tractor, a rotary tiller 2 is installed on the rear side of the support frame 1, a gas tank 3 is installed on the rotary tiller 2, a gas outlet of the gas tank 3 is connected to a gas hose 4, the gas hose 4 is connected to a gas steel pipe 5, the gas steel pipe 5 is fixedly connected to the rotary tiller 2 through a connecting rod 6, and a gas valve 7 is provided on the gas steel pipe 5;

[0039] A fire shield 8 is fixed on the support frame 1 and is located at the front side of the rotary tiller 2, with the hood opening of the fire shield 8 facing downward;

[0040] Gas collecting pipe 9, which is located inside the fire shield 8 and connected to the gas transmission steel pipe 5;

[0041] A flame spray gun 10, wherein the flame spray gun 10 is connected to the gas collecting pipe 9, and the flame spray guns 10 are arranged in a row, and the flame spray guns 10 are arranged with the flame spraying direction facing downward, and an igniter 15 is provided inside the flame spray gun 10;

[0042] The straw throwing mechanism 11 is arranged on the fire shield 8 and is used for throwing the unburned straw to a position below the flame spray gun 10 .

[0043] The straw throwing mechanism 11 comprises:

[0044] Motor 111, motor 111 is fixed on a side plate of the fire shield 8;

[0045] A rotating shaft 112, the rotating shaft 112 is horizontally placed in the fire shield 8, one end of the rotating shaft 112 is fixedly connected to the output end of the motor 111, and the other end of the rotating shaft 112 is rotatably connected to the other side plate of the fire shield 8;

[0046] The throwing rods 113 are multiple and fixed on the rotating shaft 112 , and are used to throw the unburned straw to a position below the flame spray gun 10 .

[0047] The flame spray guns 10 are arranged in two rows in a front-to-back manner, and the rotating shaft 112 is located between the two rows of flame spray guns 10 .

[0048] A plurality of ventilation holes 81 are provided on the outer wall of the fire shield 8 .

[0049] The bottom ends of the left and right side plates of the fire shield 8 are both fixed with straw partitions 82 for separating the straw inside and outside the fire shield 8 .

[0050] The fire shield 8 is arranged away from the rotary tiller 2 .

[0051] A supporting wheel frame 12 is provided on the supporting frame 1 , and the supporting wheel frame 12 is located at the front side of the fire shield 8 .

[0052] A temperature sensor 13 is fixed inside the fire shield 8, and an alarm 14 is fixed on the support frame 1. Both the temperature sensor 13 and the alarm 14 are electrically connected to the traction machine.

[0053] The device can be equipped with a tractor, such as a tractor, for traction. When in use, open the gas valve and the lighter, ignite the gas spray gun, and the gas spray gun burns the straw. The motor drives the shaft to rotate, and the shaft drives the throwing rod on it to throw the unburned straw after being burned by the gas spray gun to the position below the flame spray gun for re-burning, ensuring the carbonization effect of the straw combustion, and then bury the ashes produced after the straw is burned by the rotary tiller, so that the ashes are buried in the soil, accelerating the degradation of the straw and preventing the unburned straw from producing smoke to pollute the environment, and at the same time killing the pest eggs on the surface and in the soil. In addition, the device is provided with two rows of flame spray guns in front and behind to accelerate and improve the carbonization effect of the straw.

[0054] In addition, when the fire shield is moving, the straw partitions on the left and right sides of the fire shield can be inserted into the straw layer, thereby separating the straw inside and outside the fire shield, preventing the burning straw on both sides of the fire shield from igniting the straw on the left and right sides of the fire shield, causing the risk of uncontrollable fire, thereby improving the safety of the use of the device.

[0055] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0056] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A straw in-situ semi-carbonization returning device, characterized in that: include: A support frame (1), the front side of the support frame (1) can be hung on a traction machine, a rotary tiller (2) is installed on the rear side of the support frame (1), a gas tank (3) is installed on the rotary tiller (2), a gas outlet of the gas tank (3) is connected to a gas hose (4), the gas hose (4) is connected to a gas steel pipe (5), the gas steel pipe (5) is fixedly connected to the rotary tiller (2) through a connecting rod (6), and a gas valve (7) is provided on the gas steel pipe (5); A fire shield (8), the fire shield (8) being fixed on the support frame (1) and being located at the front side of the rotary tiller (2), with the hood opening of the fire shield (8) being arranged downward; A gas collecting pipe (9), the gas collecting pipe (9) is located inside the fire shield (8), and the gas collecting pipe (9) is connected to the gas transmission steel pipe (5); A flame spray gun (10), wherein the flame spray gun (10) is connected to the gas collecting pipe (9) in a plurality, the plurality of the flame spray guns (10) are arranged in a row, the flame spray guns (10) are arranged with the flame spraying direction facing downward, and an igniter (15) is provided inside the flame spray gun (10); A straw throwing mechanism (11) is arranged on the fire shield (8) and is used for throwing unburned straw to a position below the flame spray gun (10).

2. The in-situ semi-carbonization straw returning device according to claim 1, characterized in that: The straw throwing mechanism (11) comprises: A motor (111), wherein the motor (111) is fixed on a side plate of the fire shield (8); A rotating shaft (112), the rotating shaft (1112) being horizontally placed in the fire shield (8), one end of the rotating shaft (112) being fixedly connected to the output end of the motor (111), and the other end of the rotating shaft (112) being rotatably connected to the other side plate of the fire shield (8); A throwing rod (113), wherein the throwing rod (113) is a plurality of rods fixed on the rotating shaft (112) and is used to throw unburned straw to a position below the flame spray gun (10).

3. The in-situ semi-carbonization straw returning device according to claim 2, characterized in that: The flame spray guns (10) are arranged in two rows in a front-to-back manner, and the rotating shaft (112) is located between the two rows of flame spray guns (10).

4. The in-situ semi-carbonization straw returning device according to claim 1, characterized in that: The outer wall of the fire shield (8) is provided with a plurality of air holes (81).

5. The in-situ semi-carbonization straw returning device according to claim 1, characterized in that: The bottom ends of the left and right side plates of the fire shield (8) are both fixed with straw partitions (82) for separating the straw inside and outside the fire shield (8).

6. The in-situ semi-carbonization straw returning device according to claim 1, characterized in that: The fire shield (8) is arranged away from the rotary tiller (2).

7. The in-situ semi-carbonization straw returning device according to claim 1, characterized in that: The support frame (1) is provided with a support wheel frame (12), and the support wheel frame (12) is located at the front side of the fire shield (8).

8. The in-situ semi-carbonization straw returning device according to claim 1, characterized in that: A temperature sensor (13) is fixed inside the fire shield (8), an alarm (14) is fixed on the support frame (1), and both the temperature sensor (13) and the alarm (14) are electrically connected to the traction machine.

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