Anti-adhesion material conveying device and feeding device

Abstract

The present invention provides an anti-adhesion material conveying device and a feeding device, wherein the conveying device comprises: a material scattering device for receiving materials and outputting the materials after scattering; a conveying device for receiving materials from the material scattering device and outputting them to a target position, comprising a conveying pipeline and a shaftless spiral blade arranged inside the conveying pipeline; a driving device for driving the shaftless spiral blade to rotate so as to convey the materials. After receiving the materials, the material scattering device scatters the materials and then inputs them into the conveying device. The scattered materials themselves are light in weight and have reduced adhesion. The driving device drives the shaftless spiral blade to rotate at a high speed, and the scattered materials are difficult to adhere to the shaftless spiral blade rotating at a high speed, thereby realizing non-adhesion conveying of the materials.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying devices, and in particular to an anti-adhesion material conveying device and a feeding device. Background Art

[0002] In factory production, materials often need to be transported. The common way to transport materials is spiral conveying, that is, a rotating shaft is set inside a pipe, spiral blades are set on the rotating shaft, and a driving device is used to drive the spiral shaft to rotate, and then drive the spiral blades to rotate, thereby pushing the material from one position to another. However, for some wet and easy-to-adhere materials, when using the above-mentioned traditional spiral mechanism for transportation, the materials often adhere to the spiral shaft or spiral blades, and the position where the spiral shaft and spiral blades meet is more prone to adhesion, resulting in low transportation efficiency or even blocking the spiral, which in turn causes the equipment to stop working, and it is also time-consuming and labor-intensive to clean up.

[0003] Chinese patent document CN110027855A discloses a screw conveyor for carbon black production, including a screw shaft and a screw trough body, wherein the screw shaft is arranged at the inner center of the screw trough body and penetrates the screw trough body, and one end of the screw shaft is connected to the left seat bearing and the right seat bearing arranged at the end of the screw trough body; the screw shaft is inserted into a rotating heat pipe for indirect heat transfer at one end of the right seat bearing, and a driving motor reducer for driving the rotating heat pipe is arranged on the side of the spiral trough body, and the evaporation section of the rotating heat pipe is inserted into the electric heating box arranged outside the spiral trough body. The technical solution in this patent document is provided with a rotating heat pipe and a heating mechanism according to the characteristics of the conveyed material, so that the surface temperature of the screw shaft and its blades can be quickly raised to 100 to 120 degrees Celsius, which can reduce the adhesion or adhesion phenomenon during the conveyance of carbon black. However, the technical solution in this patent document is only for conveying carbon black, which has a narrow application range and is relatively energy-wasting.

[0004] Therefore, how to design an anti-adhesion material conveying device with wider applicability is a technical problem that has not yet been solved in the prior art. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defect that the material conveying device in the prior art is prone to adhesion or sticking when conveying materials, which causes the conveying to be easily stopped due to blockage, thereby providing an anti-adhesion conveying device with a wider application range.

[0006] To this end, the present invention provides an anti-adhesion material conveying device, comprising:

[0007] Material breaking device, used to receive materials, break them up and then output them;

[0008] A conveying device, used for receiving the material from the material breaking device and outputting it to a target location, comprising a conveying pipeline and a shaftless spiral sheet arranged inside the conveying pipeline;

[0009] The driving device is used to drive the shaftless spiral blade to rotate so as to convey materials.

[0010] As a preferred solution, the shaftless spiral blade is formed by uniformly rotating and bending a strip, and the shaftless spiral blade is arranged close to but not in contact with the inner wall of the conveying pipe.

[0011] As a preferred solution, the strips have uniform widths, the two long sides remain parallel, and a circular cavity is formed in the middle after rotation and bending, and the diameter of the circular cavity is 70-150 mm.

[0012] As a preferred solution, the width of the strip is 60-100mm, and the axial length of the shaftless spiral blade formed by rotating and bending the strip of 3000-4500mm in length for one circle is 1200-2250mm; the rotation speed of the shaftless spiral blade when conveying materials is 15-20r / min.

[0013] As a preferred solution, the driving device includes:

[0014] A second motor, fixedly arranged, having a second drive shaft;

[0015] There is at least one fixed plate, which is fixedly arranged at one end of the conveying pipeline and has a bearing in the middle; the second driving shaft passes through the bearing and is fixedly connected to one end of the shaftless spiral sheet.

[0016] As a preferred solution, the material dispersing device comprises:

[0017] A material container having a material inlet and a material outlet, wherein the material outlet is connected to and butted against an upper opening provided on the conveying pipeline;

[0018] The scattering structure comprises a scattering shaft, the axial direction of which is parallel to the axial direction of the shaftless spiral sheet, rotatably mounted on the side wall of the material container and having a portion extending out of the material container; scattering rods, evenly mounted on the portion of the scattering shaft located inside the material container;

[0019] The driving structure drives the breaking-up shaft to rotate, thereby driving the breaking-up rod to break up the material input into the material container.

[0020] As a preferred solution, the driving structure includes:

[0021] A first driving gear, disposed on a portion of the scattering shaft extending out of the material container;

[0022] a second driving gear, disposed on the second driving shaft;

[0023] A connecting chain, sleeved on the first driving gear and the second driving gear;

[0024] The gear ratio of the second driving gear to the first driving gear is 1:0.8-2.

[0025] The present invention also provides a feeding device, comprising:

[0026] A hopper, used for temporarily storing materials, having an inlet, a bottom outlet and a side outlet, wherein the bottom outlet opens downward, and the side outlet is arranged on the lower side wall of the hopper and communicates with the bottom outlet;

[0027] a discharge structure, disposed below the bottom discharge port, for controlling the amount of material discharged from the hopper through the bottom discharge port and / or the side discharge port;

[0028] a conveying device, disposed downstream of the discharge structure, for receiving and conveying materials from the discharge structure;

[0029] The conveying device is any one of the conveying devices described above.

[0030] As a preferred solution, the discharge structure includes:

[0031] A supporting tray is arranged below the bottom discharge port and vertically spaced apart from the bottom discharge port by a set distance to form a discharge gap;

[0032] A receiving tray, arranged below the receiving tray, for receiving materials and having a discharge opening;

[0033] The first motor is used to drive the supporting tray to rotate.

[0034] As a preferred solution, it also includes:

[0035] High-pressure gas storage tank, storing compressed air;

[0036] At least one impact nozzle is arranged at the middle and lower part of the hopper, and the impact direction is obliquely downward;

[0037] An air pipe connected to the high-pressure air storage tank and an interface of the impact nozzle located outside the hopper;

[0038] The control switch controls the compressed air in the high-pressure gas storage tank to be released once at a set time interval.

[0039] The technical solution provided by the present invention has the following advantages:

[0040] 1. The anti-adhesion material conveying device of the present invention comprises a material breaking up device, a conveying device and a driving device. After the material breaking up device receives the material, the material is broken up and then input into the conveying device. The broken up material itself is light in weight and has reduced adhesion. The driving device drives the shaftless spiral blade to rotate at a high speed, and the broken up material is difficult to adhere to the shaftless spiral blade rotating at a high speed, thereby realizing the non-adhesion conveying of the material.

[0041] 2. The anti-adhesion material conveying device of the present invention has a shaftless spiral blade formed by uniformly rotating and bending a strip, and the shaftless spiral blade is arranged close to but not in contact with the inner wall of the conveying pipe. When the shaftless spiral blade rotates at high speed, the material close to the inner wall of the conveying pipe can be scraped and conveyed to avoid residue, and the material is conveyed thoroughly. Preferably, the width of the strip is consistent, the two long sides remain parallel, and a circular cavity is formed in the middle after rotation and bending. When the shaftless spiral blade rotates at high speed, it scrapes the material from the position close to the inner wall of the conveying pipe and gradually conveys it forward. In this process, the material is gradually accumulated inside the circular cavity in the middle. The shaftless spiral blade applies force from the outside to the material accumulated inside the circular cavity, reducing the extrusion contact with the material, avoiding adhesion during the extrusion process, and especially avoiding the problem of material adhesion at the position where the rotating shaft and the rotating blade are connected in the traditional way, so as to achieve non-adhesion conveying of materials in a small amount and fast manner.

[0042] 3. The anti-adhesion material conveying device of the present invention has a strip width of 60-100mm, and the axial length of the shaftless spiral piece formed by rotating and bending the strip of 3000-4500mm in length for one circle is 1200-2250mm, and the rotation speed of the shaftless spiral piece when conveying materials is 15-20r / min; the above-mentioned setting of the strip of the present invention makes the shaftless spiral piece formed by it not only play a role in promoting the conveying of materials, but also accumulates the materials to the middle part of the conveying channel, so that the materials are mainly transported through the circular through cavity in the middle part of the shaftless spiral piece, and gradually reduce the contact with the materials, so as to avoid adhesion and realize stable and effective conveying.

[0043] 4. The anti-adhesion material conveying device of the present invention comprises a driving device including a second motor, a fixing plate, a bearing, etc. The second driving shaft of the second motor passes through the bearing and is fixedly connected to one end of the shaftless spiral blade, thereby driving the shaftless spiral blade to rotate at a high speed to realize material conveying.

[0044] 5. The anti-adhesion material conveying device of the present invention comprises a material container, a dispersing structure installed inside the material container, and a driving structure. The dispersing structure comprises a dispersing shaft and a dispersing rod installed on the dispersing shaft. When the driving structure drives the dispersing shaft to rotate, it further drives the dispersing rod to rotate, and disperses the material input from the upper opening of the material container, and then inputs it into the conveying pipeline through the upper opening provided on the conveying pipeline. The dispersed material is relatively loose and free of agglomeration, which facilitates the alignment of the shaftless spiral sheets for fast and adhesion-free transportation.

[0045] 6. The anti-adhesion material conveying device of the present invention has a driving structure including a first driving gear arranged on the portion of the scattering shaft extending out of the material container, a second driving gear arranged on the second driving shaft, and a connecting chain connecting the two; when the second motor is running, the scattering shaft is driven to rotate through the gears and the chain, thereby driving the scattering rod to rotate to scatter the material; in addition, the gear ratio between the second driving gear and the first driving gear is 1:0.8-2. When the material conveying speed needs to be increased, the second motor is accelerated, and at this time, the rotation of the scattering shaft is accelerated synchronously, so that more materials can be quickly scatter and transported.

[0046] 7. The present invention also provides a feeding device, including a hopper, a discharge structure and a conveying device, wherein the hopper includes an inlet, a bottom discharge port and a side discharge port, the discharge structure is arranged below the bottom discharge port, controls the amount of material discharged from the hopper through the bottom discharge port and / or the side discharge port, and the conveying device receives the material from the discharge structure and conveys it to the target position; the feeding device of the present invention is mainly used for conveying small pieces of material, or materials that are easy to stick but not particularly sticky (such as wet activated carbon), after the material directly fills the hopper, the discharge structure controls the material to be gradually discharged from the inside of the hopper, avoiding a large amount of material directly pouring into the conveying device, thereby avoiding blockage and ensuring the stability of material transportation; in addition, the material can directly fill the hopper, and there is no need to additionally control the amount of material added to the inside of the hopper, so the work efficiency is high and the practicability is strong; in addition, due to the use of the above-mentioned conveying device, it has the advantages of no adhesion of materials and continuous and stable transportation.

[0047] 8. The feeding device of the present invention has a discharge structure including a receiving tray arranged below the bottom discharge port, a receiving tray located below the receiving tray, and a first motor driving the receiving tray to rotate; after the material is input into the hopper, since the receiving tray is arranged at the bottom discharge port of the hopper, it directly receives the material, and when the receiving tray rotates, it drives a part of the material to rotate, thereby driving the material to be discharged from the discharge gap and the side discharge port to the receiving tray, and after the receiving tray receives the material, it is transported to the conveying device through the discharge opening; that is, the feeding device of the present invention controls the amount of material discharged by controlling the rotation speed of the receiving tray.

[0048] 9. The feeding device of the present invention also includes a fixed high-pressure gas tank, an impact nozzle arranged in the lower middle part of the hopper, and an interface located outside the hopper connecting the high-pressure gas tank and the impact nozzle. The compressed air in the high-pressure gas tank is released once at a set interval by controlling the control switch. The released high-pressure air impacts the material through the impact nozzle, which can collapse the material that has bridged in the hopper due to adhesion, ensuring that the material can be smoothly transported downward in the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the prior art or the specific implementation manner of the present invention, the drawings used in the description of the prior art or the specific implementation manner are briefly introduced below.

[0050] Figure 1 It is a schematic diagram of the overall structure of the anti-adhesion material conveying device of the present invention.

[0051] Figure 2 yes Figure 1 sectional view of .

[0052] Figure 3 Yes Figure 1 A three-dimensional diagram after the material breaking device is removed.

[0053] Figure 4 yes Figure 3 Right view of .

[0054] Figure 5 It is a schematic diagram of the overall structure of the feeding device of the present invention.

[0055] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of part A.

[0056] Figure 7 yes Figure 5 Another stereoscopic view of .

[0057] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of part B.

[0058] Fig. 9 yes Figure 5 main view.

[0059] Fig.10 yes Fig. 9 Schematic diagram of the enlarged structure of part C.

[0060] Fig.11 yes Figure 5 Detailed view after the hopper is removed.

[0061] Fig.12 yes Fig.11 Another stereoscopic view of .

[0062] Fig.13 yes Figure 5 Top view of the .

[0063] Figure numerals: 1, hopper; 11, feeding port; 12, bottom discharge port; 13, side discharge port; 14, shielding plate; 141, long strip hole; 142, fixing bolt; 143, fastening nut; 15, discharge side plate; 151, first side plate; 152, second side plate; 16, support plate; 2, discharge structure; 20, discharge gap; 21, support tray; 22, receiving tray; 23, discharge opening; 24, first motor; 25, shaft through hole; 26, first drive shaft; 27, scraper plate; 3, conveying device; 30. Circular through cavity; 31. Conveying pipeline; 32. Shaftless spiral sheet; 33. Upper opening; 4. High-pressure gas storage tank; 41. Impact nozzle; 42. Air pipe; 5. Lower hanging plate; 51. Permanent magnet block; 6. Material scattering device; 60. Material container; 61. Material inlet; 62. Material outlet; 63. scattering structure; 631. scattering rotating shaft; 632. scattering rod; 71. Second motor; 72. Second drive shaft; 73. Fixed plate; 74. First drive gear; 75. Second drive gear; 76. Connecting chain. DETAILED DESCRIPTION

[0064] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings.

[0065] Example 1

[0066] This embodiment provides an anti-adhesion material conveying device, such as Figure 1 As shown, it includes: a material scattering device 6, which is used to receive materials and output them after scattering; a conveying device 3, which is used to receive materials from the material scattering device 6 and output them to a target position, including a conveying pipe 31, and a shaftless spiral blade 32 arranged inside the conveying pipe 31; a driving device, which is used to drive the shaftless spiral blade 32 to rotate to convey materials.

[0067] In the anti-adhesion material conveying device of this embodiment, the material breaking up device 6 breaks up the material after receiving the material, and then inputs the material into the conveying device 3. The broken up material itself is lighter in weight and has lower adhesion. The driving device drives the shaftless spiral blade 32 to rotate at a high speed, and the broken up material is difficult to adhere to the high-speed rotating shaftless spiral blade 32, thereby realizing non-adhesion conveying of the material.

[0068] Specifically, the shaftless spiral blade 32 is formed by uniformly rotating and bending a strip, and the shaftless spiral blade 32 is arranged close to but not in contact with the inner wall of the conveying pipe 31 .

[0069] The shaftless spiral blade 32 is arranged close to but not in contact with the inner wall of the conveying pipe 31. When the shaftless spiral blade 32 rotates at a high speed, the material close to the inner wall of the conveying pipe 31 can be scraped and conveyed to avoid residue and ensure thorough material conveyance.

[0070] like Figure 2-4 As shown, the strip has the same width, the two long sides are kept parallel, and after rotating and bending, a circular through cavity 30 is formed in the middle. In this embodiment, the diameter of the circular through cavity 30 is 90 mm, which can also be increased or decreased according to different conveying materials, and can be within the range of 70-150 mm.

[0071] When the shaftless spiral blade 32 rotates at high speed, it scrapes up the material from the inner wall position close to the conveying pipe 31 and gradually conveys it forward. In this process, the material is gradually accumulated inside the circular cavity 30 in the middle. The shaftless spiral blade 32 applies force to the material accumulated inside the circular cavity 30 from the outside, reducing the extrusion contact with the material and avoiding adhesion during the extrusion process. In particular, it avoids the problem of material adhesion at the connection position of the rotating shaft and the rotating blade in the traditional way, so as to achieve adhesion-free conveying of materials in a small amount and fast manner.

[0072] In this embodiment, the width of the strip is 80 mm, and the axial length of the shaftless spiral blade 32 formed after the strip with a length of 3710 mm is rotated and bent for one circle is 1700 mm; the rotation speed of the shaftless spiral blade 32 when conveying materials is ≤20 r / min.

[0073] The above-mentioned setting of the strip in this embodiment enables the shaftless spiral blade 32 formed therein to not only promote the conveying of materials, but also accumulate the materials to the middle of the conveying channel, so that the materials are mainly transported through the circular through cavity 30 in the middle of the shaftless spiral blade 32, and gradually reduce the contact with the materials, thereby avoiding adhesion and achieving stable and effective conveying.

[0074] As a variation design, the width of the strip is 60-100mm, and the axial length of the shaftless spiral blade 32 formed after the strip with a length of 3000-4500mm is rotated and bent for one circle is 1200-2250mm; the rotation speed of the shaftless spiral blade 32 when conveying materials is 15-20r / min, both of which can achieve the purpose of the invention.

[0075] like Figure 1 As shown, the driving device includes: a second motor 71, which is fixedly arranged and has a second driving shaft 72; at least one fixing plate 73, which is fixedly arranged at one end of the conveying pipe 31 and has a bearing in the middle; the second driving shaft 72 passes through the bearing and is fixedly connected to one end of the shaftless spiral piece 32. The second driving shaft 72 of the second motor 71 passes through the bearing and is fixedly connected to one end of the shaftless spiral piece 32, driving the shaftless spiral piece 32 to rotate at a high speed to realize material conveying.

[0076] like Figure 1 As shown, the material breaking up device 6 comprises: a material container 60, having a material inlet 61 and a material outlet 62, wherein the material outlet 62 is connected to the upper opening 33 provided on the conveying pipe 31; a breaking up structure 63, comprising a breaking up shaft 631, the axial direction of which is parallel to the axial direction of the shaftless spiral sheet 32, rotatably mounted on the side wall of the material container 60, and having a portion extending out of the material container 60; breaking up rods 632, evenly mounted on the portion of the breaking up shaft 631 located inside the material container 60; a driving structure, which drives the breaking up shaft 631 to rotate, thereby driving the breaking up rods 632 to break up the material input into the material container 60.

[0077] When the driving structure drives the breaking shaft 631 to rotate, it further drives the breaking rod 632 to rotate, breaking up the material input from the material inlet 61 of the material container 60, and then inputting it into the conveying pipeline through the upper opening 33 opened on the conveying pipeline 31. The broken material is relatively loose and has no agglomeration phenomenon, which facilitates the alignment of the shaftless spiral blades 32 for fast and adhesion-free transportation.

[0078] The driving structure includes: a first driving gear 74, which is arranged on the portion of the scattering shaft 631 extending out of the material container 60; a second driving gear 75, which is arranged on the second driving shaft 72; a connecting chain 76, which is sleeved on the first driving gear 74 and the second driving gear 75; when the second motor is running, the scattering shaft is driven to rotate through the gears and chains, and then the scattering rod is driven to rotate to scatter the material.

[0079] The gear ratio of the second driving gear 75 to the first driving gear 74 is 1:1.5. When the material conveying speed needs to be increased, the second motor 71 rotates faster, and the rotation of the scattering shaft 631 is synchronously accelerated at this time, so that more materials can be quickly scattered for transportation. According to actual needs, the gear ratio of the second driving gear 75 to the first driving gear 74 can also be 1:0.8-2.

[0080] Example 2

[0081] This embodiment provides a feeding device, such as Figure 5-6As shown, it includes: a hopper 1, which is used to temporarily store materials, and has an inlet 11, a bottom outlet 12 and a side outlet 13, wherein the bottom outlet 12 opens downward, and the side outlet 13 is arranged on the lower side wall of the hopper 1 and is connected to the bottom outlet 12; a discharge structure 2, which is arranged below the bottom outlet 12, and is used to control the amount of material discharged from the hopper 1 through the bottom outlet 12 and / or the side outlet 13; a conveying device 3, which is arranged downstream of the discharge structure 2, and is used to receive and convey the material from the discharge structure 2; the conveying device 3 is the conveying device described in Example 1.

[0082] The feeding device of this embodiment is mainly used for conveying small pieces of materials, or materials that are easy to stick but not particularly sticky (such as wet activated carbon). After the materials directly fill the hopper 1, the discharge structure 2 controls the materials to be gradually discharged from the inside of the hopper 1 to prevent a large amount of materials from directly pouring into the conveying device 3, thereby avoiding blockage and ensuring the stability of material transportation; in addition, the materials can directly fill the hopper 1 without the need to additionally control the amount of materials added to the inside of the hopper 1, so the work efficiency is high and the practicality is strong.

[0083] The discharge structure 2 includes: a tray 21, which is arranged below the bottom discharge port 12 and is vertically spaced apart from the bottom discharge port 12 by a set distance to form a discharge gap 20 (such as Figure 9-10 As shown); a receiving tray 22 is arranged below the receiving tray 21, used for receiving materials, and has a discharge opening 23; a first motor 24 is used to drive the receiving tray 21 to rotate. After the material is input into the hopper 1, since the receiving tray 21 is arranged at the bottom discharge port 12 of the hopper 1, it directly receives the material. When the receiving tray 21 rotates, it drives a part of the material to rotate, thereby driving the material to be discharged from the discharge gap 20 and the side discharge port 13 to the receiving tray 22. After the receiving tray 22 receives the material, it is transported to the conveying device 3 through the discharge opening 23; that is, the anti-blocking feeding device of this embodiment controls the amount of material discharge by controlling the rotation speed of the receiving tray 21.

[0084] like Figure 7-8 As shown, the first motor 24 is disposed below the receiving tray 22 , and a shaft through hole 25 is provided in the middle of the receiving tray 22 ; a first driving shaft 26 of the first motor 24 passes through the shaft through hole 25 and is connected to the receiving tray 21 .

[0085] like Figure 11-12As shown, it also includes a scraper plate 27, which is fixedly arranged under the receiving tray 21, rotates with the receiving tray 21, and scrapes the materials falling on the receiving tray 22 to the discharge opening 23 for discharge. The scraper plate 27 is fixedly arranged on the receiving tray 21, and rotates synchronously with the receiving tray 21. When the rotation of the receiving tray 21 accelerates and the material discharge amount increases, the scraping speed of the scraper plate 27 also increases at the same time, so that the materials can be transferred from the receiving tray 22 to the conveying device 3 in time, and the material accumulation phenomenon will not occur.

[0086] like Figure 6 , 8 , 10, and 13, further comprising: a shielding plate 14, which is movably mounted on the bottom side wall of the hopper 1 through an adjustment structure, and is used to adjust the opening size of the side discharge port 13, thereby adjusting the speed at which the hopper 1 discharges materials.

[0087] Specifically, the adjustment structure includes: an elongated hole 141, which is opened on the baffle plate 14 along the adjustment direction; at least two fixing bolts 142, which are fixedly arranged on the outer wall of the hopper 1; and at least two fastening nuts 143, which are respectively screwed on the parts of the fixing bolts 142 that pass through the elongated hole 141.

[0088] When the size of the side discharge port 13 needs to be adjusted, the fastening nut 143 is loosened, and after the shielding plate 14 is adjusted back and forth to a suitable position, the fastening nut 143 is tightened to complete the adjustment.

[0089] The hopper 1 further includes a discharge side plate 15, which is disposed on one side of the side discharge port 13 and has a first side plate 151 extending into the interior of the hopper 1. The discharge side plate 15 also includes a second side plate 152 integrally formed with the first side plate 151, the second side plate 152 is located outside the hopper 1, and the back side of the second side plate 152 is fixedly connected to the side wall of the hopper 1 through a support plate 16.

[0090] When the tray 21 rotates, the material is pushed to rotate, and the first side plate 151 can discharge the material from the side discharge port 13. The efficiency of discharging the material can be adjusted by adjusting the height and length of the first side plate 151. When the tray 21 rotates and drives the material to rotate and squeeze the first side plate 151, the second side plate 152 and the support plate 16 can play a reinforcing role.

[0091] It also includes: a high-pressure gas storage tank 4 storing compressed air; at least one impact nozzle 41, which is arranged at the middle and lower part of the hopper 1, and the impact direction is obliquely downward; an air pipe 42, which is connected to the high-pressure gas storage tank and the interface of the impact nozzle 41 located outside the hopper 1; a control switch, which controls the compressed air in the high-pressure gas storage tank 4 to be released once at a set interval. The compressed air in the high-pressure gas storage tank 4 is released once at a set interval by controlling the control switch, and the high-pressure air is released to impact the material through the impact nozzle 41, so that the material that is bridged in the hopper 1 due to adhesion can be collapsed, ensuring that the material can be smoothly transported downward inside the hopper 1.

[0092] The device further comprises: a lower hanging plate 5, which is arranged below the discharge opening 23; and a plurality of permanent magnetic blocks 51, which are fixedly arranged on the lower hanging plate 5 and are arranged outward. When the material is mixed with iron impurities, when the material is transported outward through the discharge opening, the iron impurities can be adsorbed and fixed by the permanent magnetic blocks 51, thereby filtering the iron impurities out of the material.

[0093] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A feeding device, comprising: A hopper (1) is used for temporarily storing materials, and comprises an inlet (11), a bottom outlet (12) and a side outlet (13), wherein the bottom outlet (12) opens downward, and the side outlet (13) is arranged on the lower side wall of the hopper (1) and communicates with the bottom outlet (12); A discharge structure (2), arranged below the bottom discharge port (12), and used to control the amount of material discharged from the hopper (1) through the bottom discharge port (12) and / or the side discharge port (13); A conveying device (3), arranged downstream of the discharge structure (2), and used for receiving and conveying materials from the discharge structure; The conveying device comprises: The material breaking device (6) is used to receive the material and break it up before outputting it; A conveying device (3) is used to receive the material from the material breaking device (6) and output it to a target location, comprising a conveying pipeline (31) and a shaftless spiral sheet (32) arranged inside the conveying pipeline (31); A driving device, used for driving the shaftless spiral blade (32) to rotate so as to convey materials; The discharge structure (2) comprises: A support tray (21) is disposed below the bottom discharge port (12) and is vertically spaced apart from the bottom discharge port (12) by a set distance to form a discharge gap (20); A material receiving tray (22), arranged below the receiving tray (21), used for receiving materials, and having a material discharge opening (23); a first motor (24) for driving the support tray (21) to rotate; the first motor (24) is arranged below the receiving tray (22), and a rotating shaft through hole (25) is provided in the middle of the receiving tray (22); a first driving shaft (26) of the first motor (24) passes through the rotating shaft through hole (25) and is connected to the support tray (21); It also includes a scraper plate (27) which is fixedly arranged below the receiving tray (21) and rotates along with the receiving tray (21) when the receiving tray (21) rotates, and scrapes the material that falls onto the receiving tray (22) to the discharge opening (23) for discharge.

2. The feeding device according to claim 1, characterized in that: The shaftless spiral blade (32) is formed by uniformly rotating and bending a strip, and the shaftless spiral blade (32) is arranged close to but not in contact with the inner wall of the conveying pipe (31).

3. The feeding device according to claim 2, characterized in that: The strip has a uniform width, two long sides remain parallel, and after rotation and bending, a circular through cavity (30) is formed in the middle, and the diameter of the circular through cavity (30) is 70-150 mm.

4. The feeding device according to claim 3, characterized in that: The width of the strip is 60-100 mm, and the axial length of the shaftless spiral blade (32) formed after the strip with a length of 3000-4500 mm is rotated and bent for one circle is 1200-2250 mm; the rotation speed of the shaftless spiral blade (32) when conveying materials is 15-20 r / min.

5. The feeding device according to claim 1, characterized in that: The driving device comprises: A second motor (71) is fixedly arranged and has a second drive shaft (72); At least one fixed plate (73) is fixedly arranged at one end of the conveying pipe (31) and has a bearing in the middle; the second drive shaft (72) passes through the bearing and is fixedly connected to one end of the shaftless spiral sheet (32).

6. The feeding device according to claim 5, characterized in that: The material dispersing device (6) comprises: The material container (60) has a material inlet (61) and a material outlet (62), wherein the material outlet (62) is connected to and butted against an upper opening (33) provided on the conveying pipe (31); The scattering structure (63) comprises a scattering shaft (631) whose axial direction is parallel to the axial direction of the shaftless spiral sheet (32), which is rotatably mounted on the side wall of the material container (60) and has a portion extending out of the material container (60); scattering rods (632) which are evenly mounted on the portion of the scattering shaft (631) located inside the material container (60); The driving structure drives the breaking-up rotating shaft (631) to rotate, thereby driving the breaking-up rod (632) to break up the material input into the material container (60).

7. The feeding device according to claim 6, characterized in that: The driving structure comprises: A first driving gear (74) is arranged on a portion of the scattering shaft (631) extending out of the material container (60); A second driving gear (75) is arranged on the second driving shaft (72); A connecting chain (76) sleeved on the first driving gear (74) and the second driving gear (75); The gear ratio of the second driving gear (75) to the first driving gear (74) is 1:0.8-2.

8. The feeding device according to claim 1, characterized in that: Also includes: A high-pressure gas storage tank (4) storing compressed air; At least one impact nozzle (41) is arranged at the middle and lower part of the hopper (1), and the impact direction is obliquely downward; An air pipe (42) connected to the high-pressure air storage tank and an interface of the impact nozzle (41) located outside the hopper (1); A control switch is used to control the compressed air in the high-pressure gas storage tank (4) to be released once at a set time interval.

Images