Feeding device capable of reducing flying dust

Abstract

The utility model relates to the technical field of feeding devices, in particular to a feeding device capable of reducing flying dust, which comprises a negative pressure suction conveying box, a dust shielding component, a negative pressure suction component and a pressure-isolating conveying component, a cylindrical inner cavity is arranged in the negative pressure suction conveying box, two sides of the lower portion of the cylindrical inner cavity are respectively connected with a feeding pipeline and a lower suction pipe, and the lower suction pipe is connected with the dust shielding component. An upper suction tube is arranged right above the lower suction tube; through the cloth bag cylinder, the negative pressure suction material conveying box, the negative pressure suction assembly, the pressure isolation material conveying assembly and the high-pressure metal hose which are matched with one another, raw materials can be continuously extracted and conveyed into a fed hopper; then, the distance that the particles collide and splash all around is reduced through the cloth bag cylinder, and the outlet end of the feeding pipeline and the hopper are in a relatively closed state in cooperation with the dust shielding assembly, so that flying dust can be prevented from being generated during feeding of the feeding pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a feeding device capable of reducing dust. Background Art

[0002] Fertilizer has always been an important factor in increasing crop yields, and its contribution to my country's grain production is as high as 40%. In order to meet the needs of agricultural modernization, in addition to continuing to increase production, chemical fertilizer production is moving towards high-efficiency compounding, combined with mechanized fertilization, pipeline fertilizer transportation, and water and fertilizer sprinkler instrumentation. A fertilizer often has multiple properties, and can be divided into solid and fluid fertilizers according to the physical state of the fertilizer. Solid fertilizers are further divided into powdered and granular fertilizers.

[0003] At present, in the process of producing and processing compound ingredients of powdered and granular fertilizers, it is necessary to put several different dry bulk raw materials into the fertilizer raw material vibrating screen or into the fertilizer raw material crusher for initial processing. When the dry bulk raw materials are fed into the vibrating screen hopper or the crusher hopper manually or by a forklift, the particles of different sizes in the raw materials fall at different speeds during the falling process, causing collisions between the particles in the raw materials, and the falling raw materials will collide with the inner wall of the hopper, causing dust to be generated during the feeding process of the dry bulk raw materials. In order to reduce the dust generated by feeding dry bulk raw materials. In view of this, we propose a feeding device that can reduce dust. Utility Model Content

[0004] In order to make up for the deficiency of dusting during the feeding process of the above dry bulk raw materials, the utility model provides a feeding device capable of reducing dusting.

[0005] The technical solution of the utility model is:

[0006] A feeding device capable of reducing dust, comprising a feeding port arranged on the ground, and further comprising:

[0007] A negative pressure suction feeding box, wherein a cylindrical inner cavity is provided in the negative pressure suction feeding box, and a feeding pipeline and a lower suction pipe are connected to the lower two sides of the cylindrical inner cavity respectively, and an upper suction pipe is provided just above the lower suction pipe;

[0008] A dust shielding assembly is installed at the periphery of the outlet end of the feeding pipe and is composed of a dust shielding plate and a dust sealing skirt;

[0009] A negative pressure suction component is installed at the upper end of the upper suction tube;

[0010] The pressure-isolating material-transferring component is installed in the cylindrical inner cavity.

[0011] Preferably, the dust-sealing skirt is mounted around the lower end edge of the dust shielding plate, and a cloth bag tube is mounted around the outlet end edge of the feeding pipe.

[0012] Preferably, the negative pressure suction component is composed of a vacuum pump, and the air inlet of the vacuum pump is installed at the top end of the upper suction tube.

[0013] Preferably, the pressure-isolating feeding assembly is composed of a motor, a bevel gear 1, a bevel gear 2, a rotating shaft and a plurality of pressure-isolating pushing plates.

[0014] Preferably, the motor is mounted on the negative pressure suction feed box, the output end of the motor is interconnected with the bevel gear 2 via a coupling, and the bevel gear 1 and the bevel gear 2 are meshed with each other.

[0015] Preferably, the bevel gear 2 is installed on the top end of the rotating shaft, the rotating shaft is installed in the cylindrical inner cavity, a plurality of the pressure isolation push plates are installed in the cylindrical inner cavity, a plurality of the pressure isolation push plates are evenly arranged in a circle with the central axis of the rotating shaft as the center, and one side of a plurality of the pressure isolation push plates is connected to the rotating shaft, and the other side of a plurality of the pressure isolation push plates is in contact with the inner wall of the negative pressure suction feed box.

[0016] Preferably, a connecting frame is installed at the lower end of the negative pressure suction feed box, a high-pressure metal hose is installed at the lower end of the lower suction tube, and a support rod is installed at the outer side of the end of the high-pressure metal hose.

[0017] Preferably, a plurality of pressure relief holes are provided just above the head end of the feeding pipeline, the pressure relief holes are provided at the top end of the negative pressure suction feeding box, and a filter is installed on the inner side of the upper end of the upper suction pipe.

[0018] Preferably, a floor scale is provided at the end of the high-pressure metal hose, and the floor scale is installed on the ground.

[0019] Preferably, the connecting frame is installed on one side of the pit feeding port.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model can continuously extract raw materials and transport them to the hopper to be fed through the bag tube, the negative pressure suction feeding box, the negative pressure suction component, the pressure isolation feeding component and the high-pressure metal hose. Then, the bag tube is used to reduce the distance of particles colliding and splashing around. Then, the dust shielding component is used to put the outlet end of the feeding pipe and the hopper in a relatively closed state, thereby avoiding dust generated when feeding through the feeding pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is the axial view of the utility model;

[0023] Figure 2 It is the front view of the utility model;

[0024] Figure 3 This is an axial cutaway view of the utility model;

[0025] Figure 4 This is a top view of the negative pressure suction feed box of the utility model.

[0026] In the figure: 1. Negative pressure suction feed box; 2. Motor; 3. Vacuum pump; 4. Bevel gear one; 5. Feeding pipe; 6. Dust shielding plate; 7. Dust sealing skirt; 8. Connecting frame; 9. High-pressure metal hose; 10. Support rod; 11. Pressure relief hole; 12. Bevel gear two; 13. Rotating shaft; 14. Pressure isolation push plate; 15. Upper suction pipe; 16. Filter screen; 17. Bag tube; 18. Lower suction pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] See also Figure 1-4 The utility model describes the above technical solution in detail through the following embodiments:

[0030] A feeding device capable of reducing dust, comprising a pit feeding port arranged on the ground, a connecting frame 8 is fixedly installed on one side of the pit feeding port, the pit feeding port is arranged on the ground, a feeding port for a fertilizer raw material vibrating screen, a fertilizer raw material crusher and other fertilizer production equipment is arranged directly below the pit feeding port, a floor scale is fixedly installed on the ground, a plurality of different dry bulk raw materials are piled up on the floor scale, the floor scale is used to display the weight of the raw materials piled up above in real time, and a negative pressure suction feed box is fixedly installed on the upper end of the connecting frame 8 1. A negative pressure suction feeding box 1 is provided with a cylindrical inner cavity, and a feeding pipe 5 and a lower suction pipe 18 are respectively connected and installed on both sides of the lower side of the cylindrical inner cavity. The top ends of the feeding pipe 5 and the lower suction pipe 18 are fixedly installed on the lower surface of the negative pressure suction feeding box 1. The feeding pipe 5 is arranged on the left side of the lower suction pipe 18, and an upper suction pipe 15 is arranged just above the lower suction pipe 18, that is, the lower suction pipe 18 and the upper suction pipe 15 are on the same vertical line, and the upper suction pipe 15 is fixedly installed on the upper surface of the negative pressure suction feeding box 1.

[0031] In this embodiment, the outlet end of the feeding pipe 5 is vertically downward, and a cloth bag tube 17 is fixedly installed around the edge of the outlet end of the feeding pipe 5. A dust shielding component is installed on the periphery of the outlet end of the feeding pipe 5. The dust shielding component is composed of a dust shielding plate 6 and a dust sealing skirt 7. The dust sealing skirt 7 is installed around and in contact with the lower edge of the dust shielding plate 6. The dust shielding plate 6 and the feeding pipe 5 are fixedly connected. The dust sealing skirt 7 and the cloth bag tube 17 are both made of cloth, and the lower end of the dust sealing skirt 7 is lower than the bottom end of the cloth bag tube 17. When the raw materials in the outlet end of the feeding pipe 5 fall, particles of different sizes in the raw materials fall. The different speeds cause collisions between particles in the raw material. When the particles that are impacted and directed toward the surroundings contact the inner wall of the bag tube 17, the bag tube 17 can undergo local deformation along the collision direction of the particles, thereby effectively absorbing the impact force of the particles impacting outwards, that is, reducing the distance that the particles impact and splash in all directions, so that the raw materials passing through the bag tube 17 can be fed vertically downward as much as possible by gravity. The dust-sealing skirt 7 is mounted on the edge of the hopper to be fed, and is used to keep the outlet end of the feeding pipe 5 and the hopper in a relatively closed state, thereby avoiding dust generated when the feeding pipe 5 feeds.

[0032] In this embodiment, a negative pressure suction component is installed at the upper end of the upper suction tube 15, and the negative pressure suction component is composed of a vacuum pump 3. The air inlet of the vacuum pump 3 is fixedly installed on the top of the upper suction tube 15, and a battery is fixedly installed on the negative pressure suction feed box 1. A filter screen 16 is fixedly and closedly installed on the inner side of the upper end of the upper suction tube 15. The battery and the vacuum pump 3 are connected to each other through a wire. When the vacuum pump 3 is in working state, the air inlet of the vacuum pump 3 can draw air in the cylindrical inner cavity through the upper suction tube 15 to generate negative pressure in the cylindrical inner cavity.

[0033] In this embodiment, a pressure-isolating and feeding assembly is installed in the cylindrical inner cavity. The pressure-isolating and feeding assembly is composed of a motor 2, a bevel gear 1 4, a bevel gear 2 12, a rotating shaft 13 and a plurality of pressure-isolating and pushing plates 14. The motor 2 is fixedly installed on the negative pressure suction feeding box 1, and the output end of the motor 2 is fixedly connected to the bevel gear 2 12 through a coupling. The bevel gear 1 4 and the bevel gear 2 12 are meshed with each other. The bevel gear 2 12 is fixedly installed on the top of the rotating shaft 13. The rotating shaft 13 is rotatably installed in the cylindrical inner cavity. A plurality of pressure-isolating and pushing plates 14 are installed in the cylindrical inner cavity. The plurality of pressure-isolating and pushing plates 14 are circular with the central axis of the rotating shaft 13 as the center. The shapes are evenly arranged, and one side of several pressure-isolating pushing plates 14 is fixedly connected to the rotating shaft 13, the other sides of several pressure-isolating pushing plates 14 are in contact with the inner wall of the negative pressure suction feeding box 1, and the upper and lower sides of the pressure-isolating pushing plates 14 are in contact with the upper and lower inner walls of the negative pressure suction feeding box 1, that is, the outer edge, upper and lower edges of the pressure-isolating pushing plates 14 and the inner wall of the negative pressure suction feeding box 1 are in a hard-sealed state, and several pressure-isolating pushing plates 14 always completely separate the upper end of the lower suction tube 18 from the upper end of the feeding pipe 5, so that the negative pressure generated by the upper suction tube 15 is concentrated on the upper end of the lower suction tube 18 as much as possible.

[0034] In this embodiment, the motor 2 and the battery are connected to each other through a wire, and a high-pressure metal hose 9 is fixedly installed at the lower end of the lower suction tube 18. The end of the high-pressure metal hose 9 is arranged above the floor scale, and a support rod 10 is fixedly installed on the outer side of the end of the high-pressure metal hose 9. Handles are fixedly installed on both sides of the head end of the support rod 10. The support rod 10 and the handle can be more convenient for manual operation. A plurality of pressure relief holes 11 are provided just above the head end of the feeding pipe 5. The pressure relief holes 11 are provided at the top of the negative pressure suction feed box 1, that is, when a plurality of pressure isolation push plates 14 rotate, when the negative pressure between the plurality of pressure isolation push plates 14 reaches the top of the feeding pipe 5, air can be drawn through the plurality of pressure relief holes 11 to supplement the air pressure in the cylindrical inner cavity above the feeding pipe 5, so that the raw materials in the feeding pipe 5 can be discharged downward by their own gravity.

[0035] In the present embodiment, in the process of producing and processing compound ingredients of powdered and granular fertilizers, firstly, the negative pressure suction feed box 1 is fixedly installed on one side of the pit feeding port by the connecting frame 8, and the outlet end of the feeding pipe 5 is arranged directly above the pit feeding port, that is, the outlet end of the feeding pipe 5 is arranged directly above the hopper of the equipment such as the vibrating screen or the crusher, and the dust-sealing skirt 7 is installed around and contacted on the lower end edge of the dust shielding plate 6 to make the outlet end of the feeding pipe 5 and the pit feeding port in a relatively closed state, so as to avoid dust generated when the feeding pipe 5 is fed. Then, the feeding personnel hold the handle to connect the end of the support rod 10 with the high-pressure metal The feed port of the hose 9 is inserted into the raw material on the scale, and the vacuum pump 3 and the motor 2 are started. When the vacuum pump 3 is in working condition, the air inlet of the vacuum pump 3 can draw the air in the cylindrical inner cavity through the upper suction pipe 15, and generate negative pressure in the cylindrical inner cavity. Several pressure-isolating push plates 14 always completely separate the upper end of the lower suction pipe 18 and the upper end of the feeding pipe 5, so that the negative pressure generated by the upper suction pipe 15 is concentrated on the upper end of the lower suction pipe 18 as much as possible, and then a negative pressure is generated in the high-pressure metal hose 9 at the lower end of the lower suction pipe 18, so as to suck and extract the raw materials in a dry and loose state, and continuously push the raw materials along the high-pressure metal hose 9 to the cylindrical inner cavity and the upper In the suction pipe 15, the filter screen 16 can prevent the raw materials from entering the vacuum pump 3 through the upper suction pipe 15. The raw materials extracted in the upper suction pipe 15 will fall back into the cylindrical inner cavity under the action of their own gravity. When the output end of the motor 2 rotates slowly clockwise, the output end of the motor 2 will drive a number of pressure-isolating push plates 14 to rotate in the cylindrical inner cavity, and push the raw materials sucked on the right side to be transported to the left to reach the top of the feeding pipe 5, and then air is extracted through a number of pressure relief holes 11 to supplement the air pressure in the cylindrical inner cavity above the feeding pipe 5, so that the raw materials in the feeding pipe 5 can rely on their own gravity to fall down from the feeding pipe 5. The raw materials in the feeding pipe 5 are discharged downward, and the floor scale can display the remaining weight of the raw materials above in real time, so that the weight of the raw materials put in each time can be known. When the raw materials in the outlet end of the feeding pipe 5 fall, the falling speeds of particles of different sizes in the raw materials are different, so that the particles in the raw materials will collide with each other. When the particles that are hit toward the surroundings contact the inner wall of the bag tube 17, the bag tube 17 can undergo local deformation along the impact direction of the particles, so as to effectively absorb the impact force of the particles hitting the outside, that is, reduce the distance that the particles hit and splash around, so that the raw materials passing through the bag tube 17 can be fed vertically downward as much as possible by gravity, thereby reducing the dust generated during feeding.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A feeding device capable of reducing dust, comprising a feeding port arranged on the ground, characterized in that: Also includes: A negative pressure suction material delivery box (1), wherein a cylindrical inner cavity is provided in the negative pressure suction material delivery box (1), a feeding pipeline (5) and a lower suction pipe (18) are connected to the lower two sides of the cylindrical inner cavity respectively, and an upper suction pipe (15) is provided directly above the lower suction pipe (18); A dust shielding assembly is installed on the periphery of the outlet end of the feeding pipe (5), and is composed of a dust shielding plate (6) and a dust sealing skirt (7); A negative pressure suction component, mounted on the upper end of the upper suction tube (15); The pressure-isolating material-transferring component is installed in the cylindrical inner cavity.

2. The feeding device capable of reducing dust as claimed in claim 1, characterized in that: The dust-sealing skirt (7) is mounted around the lower edge of the dust shielding plate (6), and a bag tube (17) is mounted around the outlet edge of the feeding pipe (5).

3. The feeding device capable of reducing dust as claimed in claim 1, characterized in that: The negative pressure suction component is composed of a vacuum pump (3), and the air inlet of the vacuum pump (3) is installed at the top end of the upper suction tube (15).

4. The feeding device capable of reducing dust as claimed in claim 1, characterized in that: The pressure-isolating material feeding assembly is composed of a motor (2), a bevel gear 1 (4), a bevel gear 2 (12), a rotating shaft (13) and a plurality of pressure-isolating material pushing plates (14).

5. The feeding device capable of reducing dust as claimed in claim 4, characterized in that: The motor (2) is mounted on the negative pressure suction feed box (1), the output end of the motor (2) is connected to the bevel gear 2 (12) via a coupling, and the bevel gear 1 (4) and the bevel gear 2 (12) are meshed with each other.

6. The feeding device capable of reducing dust as claimed in claim 4, characterized in that: The bevel gear 2 (12) is installed at the top end of the rotating shaft (13), the rotating shaft (13) is installed in the cylindrical inner cavity, and a plurality of the pressure-isolating push plates (14) are installed in the cylindrical inner cavity. The plurality of the pressure-isolating push plates (14) are evenly arranged in a circle with the central axis of the rotating shaft (13) as the center, and one side of the plurality of the pressure-isolating push plates (14) is connected to the rotating shaft (13), and the other side of the plurality of the pressure-isolating push plates (14) is in contact with the inner wall of the negative pressure suction feed box (1).

7. The feeding device capable of reducing dust as claimed in claim 1, characterized in that: A connecting frame (8) is installed at the lower end of the negative pressure suction feeding box (1), a high-pressure metal hose (9) is installed at the lower end of the lower suction tube (18), and a support rod (10) is installed on the outer side of the end of the high-pressure metal hose (9).

8. The feeding device capable of reducing dust as claimed in claim 1, characterized in that: A plurality of pressure relief holes (11) are provided just above the head end of the feeding pipe (5), and the pressure relief holes (11) are provided at the top end of the negative pressure suction feeding box (1). A filter screen (16) is installed on the inner side of the upper end of the upper suction pipe (15).

9. The feeding device capable of reducing dust as claimed in claim 7, characterized in that: A floor scale is provided at the end of the high-pressure metal hose (9), and the floor scale is installed on the ground.

10. The feeding device capable of reducing dust as claimed in claim 7, characterized in that: The connecting frame (8) is installed on one side of the feeding port of the pit.

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