Device for removing branches, leaves, impurities and preheating grain before feeding

Abstract

The utility model relates to a device for removing branches, leaves, impurities and preheating grains before feeding, which aims to solve the technical problem that air pollution is caused by the fact that impurities are blown up due to large air volume because the current device for removing branches, leaves, impurities and preheating grains before feeding cannot adjust hot air inlet volume and proper air inlet temperature, and comprises a screening machine and a boiler, the top end of the screening machine is connected with the boiler through a dust suction hood and a dust suction conveying pipe, one side of the boiler is connected with a screening machine preheating air outlet pipe through an air volume adjusting valve, and the other end of the screening machine preheating air outlet pipe is connected with a hot air conveying pipe through a hot air conveyor. According to the grain drying device, the hot air inlet amount and the proper air inlet temperature can be adjusted, the safety of grains is protected, the grain drying efficiency is improved, the grain drying efficiency is improved, and the grain drying device is suitable for large-scale popularization and application. And air pollution caused by impurities blown by large air volume on site is avoided.

Description

Technical Field

[0001] The utility model relates to the field of grain processing equipment, in particular to a device for removing branches, impurities and preheating before grain feeding. Background Technique

[0002] After the grain is harvested from the field, it will be mixed with a lot of branches, leaves and dust. When the grain is used as a raw material, it is necessary to clean the branches, leaves and dust mixed in it, and it is necessary to preheat it. Therefore, a device for removing branches, impurities and preheating before grain feeding is needed to achieve this.

[0003] In the process of realizing the present utility model, the inventor found that at least the following problems in the prior art have not been solved. During use, the traditional device for removing branches, impurities and preheating before grain feeding cannot adjust the hot air intake volume and the appropriate intake air temperature, so that impurities will be blown up due to a large air volume, causing air pollution. Therefore, a new technical solution needs to be designed to solve this problem. Content of the Utility Model

[0004] The purpose of the present utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a device for removing branches, impurities and preheating before grain feeding, so as to solve the technical problem that the current device for removing branches, impurities and preheating before grain feeding cannot adjust the hot air intake volume and the appropriate intake air temperature, so that impurities will be blown up due to a large air volume, causing air pollution.

[0005] In order to achieve the purpose of the present utility model, the technical solution adopted by the present utility model is: design a device for removing branches, impurities and preheating before grain feeding, including a screening machine and a boiler. The top of the screening machine is connected to the boiler through a dust suction hood and a dust suction conveying pipe. One side of the boiler is connected to a preheated air outlet pipe of the screening machine through an air volume regulating valve. The other end of the preheated air outlet pipe of the screening machine is connected to a hot air conveying pipe through a hot air conveyor. The other end of the hot air conveying pipe is respectively connected to a hot air expansion hose and a hot air pipe of the screening machine through a hot air three-way. Both ends of the boiler are connected to a main hot air blower of a dryer through a boiler air outlet pipe.

[0006] Preferably, a grain discharge port is arranged on one side of the bottom end of the screening machine. Near the grain discharge port and at one end of the screening machine, a screening machine leaf and branch discharge port is arranged.

[0007] Preferably, one end of the dust suction hood is hermetically connected to the outside of the top end of the screening machine and is communicated with its inside. The other end of the dust suction hood is hermetically connected to one end of the dust suction conveying pipe. The other end of the dust suction conveying pipe is hermetically connected to one side of the boiler and is communicated with its inside.

[0008] Preferably, one end of the air volume regulating valve is hermetically connected to one side outside the boiler and is in communication with its interior. The other end of the air volume regulating valve is hermetically connected to one end of the preheating outlet air duct of the screening machine. The other end of the preheating outlet air duct of the screening machine is hermetically connected to one end of the hot air conveyor. The other end of the hot air conveyor is hermetically connected to one end of the hot air conveying pipe.

[0009] Preferably, one end of the hot air three-way is hermetically connected to the other end of the hot air conveying pipe. The other end of the hot air three-way is hermetically connected to one end of the hot air telescopic hose and the hot air duct of the screening machine respectively. The other ends of the hot air telescopic hose and the hot air duct of the screening machine are hermetically connected to the end face and the side face of the screening machine respectively and are in communication with its interior.

[0010] Preferably, one ends of the two boiler outlet air ducts are hermetically connected to both ends of the boiler respectively and are in communication with its interior. The other ends of the boiler outlet air ducts are hermetically connected to one end of the main air blower of the dryer.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, the screening machine screens out the branches, leaves and light and floating skins mixed in the grains. After the normal grains are screened, they enter the oven, and the branches, leaves and other impurities are screened out, or are introduced into the boiler for incineration through the dust suction hood. And hot air is introduced from the boiler into the screening machine to preheat the grains, blow away the light and floating skins, and assist the impurities to be introduced into the boiler. And according to the process and technological requirements, pipeline regulating valves can be installed, and leaf collecting bags are provided to adjust the hot air inlet volume and the appropriate inlet air temperature, protect the safety of the grains, and also ensure that the site will not cause air pollution due to the large air volume blowing up impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view of the present utility model;

[0014] Figure 2 is the top view of the present utility model;

[0015] Figure 3 is the schematic diagram of the leaf and branch material discharge port of the screening machine of the present utility model;

[0016] In the figure: 1. Screening machine; 2. Dust suction hood; 3. Dust suction conveying pipe; 4. Hot air telescopic hose; 5. Hot air conveying pipe; 6. Hot air conveyor; 7. Hot air three-way; 8. Hot air duct of the screening machine; 9. Leaf and branch material discharge port of the screening machine; 10. Grain discharge port; 11. Main air blower of the dryer; 12. Boiler outlet air duct; 13. Preheating outlet air duct of the screening machine; 14. Air volume regulating valve; 15. Boiler. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0018] Embodiment 1: A device for removing branches, leaves and impurities and preheating grains before feeding. Refer to Figures 1 to 3 , which includes a screening machine 1 and a boiler 15. The top of the screening machine 1 is connected to the boiler 15 through a dust suction hood 2 and a dust suction conveying pipe 3. One side of the boiler 15 is connected with a screening machine preheating air outlet pipe 13 through an air volume regulating valve 14. The other end of the screening machine preheating air outlet pipe 13 is connected with a hot air conveying pipe 5 through a hot air conveyor 6. The other end of the hot air conveying pipe 5 is respectively connected with a hot air expansion hose 4 and a screening machine hot air pipe 8 through a hot air tee 7. Both ends of the boiler 15 are connected with a main air blower 11 of a dryer through a boiler air outlet pipe 12. The screening machine 1 screens out the branches, leaves and light and floating skins mixed in the grains. After screening the normal grains, they enter the oven, and the branches and other impurities are screened out, or are introduced into the boiler 15 through the dust suction hood 2 for burning. And hot air is introduced from the boiler 15 into the screening machine 1 to preheat the grains, and the light and floating skins are blown away. The setting that the auxiliary impurities are introduced into the boiler 15, and pipeline regulating valves can be installed according to the process and technological requirements, and leaf collecting bags are provided to adjust the hot air inlet volume and the appropriate inlet temperature, to protect the safety of the grains and also ensure that the site will not cause air pollution due to the large air volume blowing up impurities.

[0019] Specifically, refer to Figure 1 , on one side of the bottom end of the screening machine 1, there is a grain discharge port 10. Near the grain discharge port 10 and at one end of the screening machine 1, there is a screening machine leaf and branch discharge port 9. The processed grains will flow out from the grain discharge port 10, and the leaves and branches will flow out from the screening machine leaf and branch discharge port 9.

[0020] Further, refer to Figure 1 , one end of the dust suction hood 2 is hermetically connected to the outside of the top end of the screening machine 1 and is communicated with its inside. The other end of the dust suction hood 2 is hermetically connected to one end of the dust suction conveying pipe 3. The other end of the dust suction conveying pipe 3 is hermetically connected to one side of the boiler 15 and is communicated with its inside. The dust suction hood 2 will suck out the dust in the screening machine 1 and convey it into the boiler 15 through the dust suction conveying pipe 3.

[0021] It is worth noting that refer to Figure 1 and Figure 3, one end of the air volume regulating valve 14 is hermetically connected to one side outside the boiler 15 and communicates with its interior. The other end of the air volume regulating valve 14 is hermetically connected to one end of the preheating air outlet pipe 13 of the screening machine. The other end of the preheating air outlet pipe 13 of the screening machine is hermetically connected to one end of the hot air conveyor 6. The other end of the hot air conveyor 6 is hermetically connected to one end of the hot air conveying pipe 5. One end of the hot air three-way 7 is hermetically connected to the other end of the hot air conveying pipe 5. The other end of the hot air three-way 7 is hermetically connected to one end of the hot air expansion hose 4 and the hot air pipe 8 of the screening machine respectively. The other ends of the hot air expansion hose 4 and the hot air pipe 8 of the screening machine are hermetically connected to the end face and the side face of the screening machine 1 respectively and communicate with its interior. The hot air conveyor 6 will extract the hot air in the boiler 15 through the preheating air outlet pipe 13 of the screening machine and the air volume regulating valve 14, and convey it into the hot air conveying pipe 5. Then, the hot air three-way 7 will respectively introduce the hot air into the interiors of the hot air expansion hose 4 and the hot air pipe 8 of the screening machine. Then, the screening machine 1 is preheated by the hot air expansion hose 4 and the hot air pipe 8 of the screening machine.

[0022] It is worth introducing that, referring to Figure 2 , one ends of the two boiler air outlet pipes 12 are hermetically connected to both ends of the boiler 15 respectively and communicate with its interior. The other ends of the boiler air outlet pipes 12 are hermetically connected to one end of the main air blower 11 of the dryer. The main air blower 11 of the dryer will extract the hot air in the boiler 15 through the boiler air outlet pipes 12.

[0023] In addition, the components designed in the present utility model are all common standard components or components known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. Those skilled in the art can fully implement them without further elaboration. The content protected by the present utility model does not involve improvements to the internal structure and methods either.

[0024] The embodiments disclosed in the present utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are all within the protection scope of the present utility model.

Claims

1. A device for removing branches, leaves and impurities and preheating before feeding grains, comprising a screening machine (1) and a boiler (15), characterized in that, The top end of the screening machine (1) is connected to the boiler (15) through a dust suction hood (2) and a dust suction conveying pipe (3). One side of the boiler (15) is connected to a preheated air outlet pipe (13) of the screening machine through an air volume regulating valve (14). The other end of the preheated air outlet pipe (13) of the screening machine is connected to a hot air conveying pipe (5) through a hot air conveyor (6). The other end of the hot air conveying pipe (5) is respectively connected to a hot air expansion hose (4) and a hot air pipe (8) of the screening machine through a hot air three-way pipe (7). Both ends of the boiler (15) are connected to a main hot air blower (11) of the dryer through boiler air outlet pipes (12).

2. The device for removing branches, impurities and preheating grains before feeding as claimed in claim 1, wherein, One side of the bottom end of the screening machine (1) is provided with a grain discharge port (10). Near one side of the grain discharge port (10) and at one end of the screening machine (1), there is a discharge port (9) for screening machine leaf branches and materials.

3. The pre - feeding device for removing branches, impurities and pre - heating grains according to claim 1, wherein, One end of the dust suction hood (2) is hermetically connected to the outside of the top end of the screening machine (1) and is in communication with its interior. The other end of the dust suction hood (2) is hermetically connected to one end of the dust suction conveying pipe (3). The other end of the dust suction conveying pipe (3) is hermetically connected to one side of the boiler (15) and is in communication with its interior.

4. The pre - feeding device for removing branches, impurities and pre - heating grains as claimed in claim 1, wherein, One end of the air volume regulating valve (14) is hermetically connected to one side of the outside of the boiler (15) and is in communication with its interior. The other end of the air volume regulating valve (14) is hermetically connected to one end of the preheated air outlet pipe (13) of the screening machine. The other end of the preheated air outlet pipe (13) of the screening machine is hermetically connected to one end of the hot air conveyor (6). The other end of the hot air conveyor (6) is hermetically connected to one end of the hot air conveying pipe (5).

5. A device for removing branches, impurities and preheating grains before feeding, as described in claim 1, characterized in that, One end of the hot air three-way pipe (7) is hermetically connected to the other end of the hot air conveying pipe (5). The other end of the hot air three-way pipe (7) is respectively hermetically connected to one end of the hot air expansion hose (4) and the hot air pipe (8) of the screening machine.

6. The pre - feeding device for removing branches, impurities and pre - heating grains as claimed in claim 1, wherein, The other ends of the hot air expansion hose (4) and the hot air pipe (8) of the screening machine are respectively hermetically connected to the end face and the side face of the screening machine (1) and are in communication with its interior.

7. The pre - processing device for removing branches, impurities and pre - heating grains before feeding as claimed in claim 1, wherein, One end of each of the two boiler air outlet pipes (12) is respectively hermetically connected to both ends of the boiler (15) and is in communication with its interior. The other end of the boiler air outlet pipe (12) is hermetically connected to one end of the main hot air blower (11) of the dryer.

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