A negative pressure dust-removing loading and unloading device for a ship unloader

Abstract

The present invention belongs to the technical field of material transportation equipment, and particularly relates to a negative pressure dust-removing loading and unloading device for a ship unloader. It includes a base, on which a box body is installed; a notch is formed on one side of the box body, and a bracket is fixedly connected to the notch. The bracket is successively installed with a first conveyor belt mechanism and a second conveyor belt mechanism from top to bottom; the top of the box body is open, and a prismoid-shaped funnel is fixedly installed on the opening; the large-diameter end of the prismoid-shaped funnel faces the outside of the box body, and the small-diameter end of the prismoid-shaped funnel faces above the first conveyor belt mechanism; the present invention avoids material waste while minimizing the generation of dust as much as possible, and greatly shortens the time period affected by dust, thereby comprehensively reducing the impact of dust generation; the present invention enables the materials initially separated by the box body to be further separated and conveyed during the transportation process, while greatly reducing the dust problem during the material transportation process.

Description

Technical Field

[0001] The present invention belongs to the technical field of material transportation equipment, and particularly relates to a negative pressure dust-removing loading and unloading device for a ship unloader. Background Art

[0002] Ship unloader transportation refers to a logistics method of loading materials from land onto ships through equipment. Its working principle is to use mechanical devices such as conveyor belts and elevators to transfer materials from land to the ship, aiming to improve the loading and unloading efficiency and safety. The advantages of ship unloader transportation are that it significantly improves the loading and unloading efficiency, shortens the time for cargo transfer, and at the same time reduces the labor cost and the safety risks brought by manual operation. In addition, the precise operation of the ship unloader reduces the occurrence of material damage and accidents, enhancing the reliability and safety of logistics transportation.

[0003] The patent application No. 202111319274.3 discloses a transferable bulk material ship unloader, including a slide rail, a support platform, a dust remover, and a fixed chute. A load-bearing plate is installed on the top of the slide rail, a rotating disk is installed on the top of the load-bearing plate, a support platform is installed on the top of the rotating disk, a dust remover is installed on the back of the support platform, a fixed chute is installed on the top of the feeder, an adjusting plate is installed on the outer wall of the support platform, a cable bundler is installed on the top of the support platform, and a collection box is installed at the bottom of the counterweight plate. This patent can reduce the dust content by installing a dust remover. Pressurize the inside of the storage tank of the pressure pump box, and then the water in the storage tank is squeezed out from the spray pipe to form a water mist to prevent the dust generated by the continuous transmission of materials. When the water level in the storage tank is relatively low, the float moves downward, one end of the test rod driven by the float rotates downward, the other end tilts up, and the impact rod impacts the switch to control whether the water pump needs to replenish water, realizing the function of removing dust.

[0004] However, the method of dust removal by spraying is not applicable to all materials. For example, some particulate or powdery materials such as cement and pulverized coal will agglomerate due to being sprayed wet. At the same time, when transporting some granular materials, dust is extremely likely to be generated, especially during the ship loading process. The falling of some fine granular materials is likely to cause dust generation, resulting in adverse effects on the construction environment, etc. Some transportation devices use the method of dust suction to remove dust, but for some materials with more small particles, it will cause serious material waste. Summary of the Invention

[0005] In order to solve the deficiencies of the existing technology, the present invention provides a negative pressure dust-removing loading and unloading device for a ship unloader. The present invention avoids material waste while minimizing the generation of dust as much as possible, and greatly shortens the time period affected by dust, thereby comprehensively reducing the impact of dust generation. The present invention enables the materials initially separated by the box body to be further separated and conveyed during the transportation process, while greatly reducing the dust problem during the material transportation process.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A negative pressure dust-removing loading and unloading device for a ship unloader, comprising a base, on which a box body is installed; a notch is opened on one side of the box body, a bracket is fixedly connected to the notch, and a first conveyor belt mechanism and a second conveyor belt mechanism are successively installed on the bracket from top to bottom; the top of the box body is open, and a pyramid-shaped funnel is fixedly installed on the opening; the large-diameter end of the pyramid-shaped funnel faces the outside of the box body, and the small-diameter end of the pyramid-shaped funnel faces above the first conveyor belt mechanism; an L-shaped pipe is fixedly installed on one side of the box body away from the first conveyor belt mechanism, one end of the L-shaped pipe is communicated with one side of the pyramid-shaped funnel, and the other end of the L-shaped pipe faces above the second conveyor belt mechanism; a separation net is fixedly provided at the connection of one end of the L-shaped pipe and the pyramid-shaped funnel; a transmission mechanism is fixedly installed on the outside of the box body for controlling the transmission of the first conveyor belt mechanism and the second conveyor belt mechanism; a material guiding mechanism is installed at one end of the bracket away from the box body for guiding materials.

[0008] Further, the bracket includes two square frames, one end of the square frame is fixedly connected in the notch of the box body, the other end of the square frame is fixedly connected with a support rod, and the support rod is fixedly connected with the lower part of one side of the box body; the first conveyor belt mechanism and the second conveyor belt mechanism are arranged between the two square frames;

[0009] The first conveyor belt mechanism includes a first driving roller and a first driven roller, and a first conveyor belt is jointly sleeved on the outside of the first driving roller and the first driven roller; both ends of the first driving roller are rotationally connected to the upper part of one end of the square frame close to the box body through a rotating shaft, and both ends of the first driven roller are rotationally connected to the upper part of one end of the square frame away from the box body through a rotating shaft;

[0010] The second conveyor belt mechanism includes a second driving roller and a second driven roller, and a second conveyor belt is jointly sleeved on the outside of the second driving roller and the second driven roller; both ends of the second driving roller are rotationally connected to the lower part of one end of the square frame close to the box body through a rotating shaft, and both ends of the second driven roller are rotationally connected to the lower part of one end of the square frame away from the box body through a rotating shaft.

[0011] Furthermore, the transmission mechanism includes a first transmission motor and a second transmission motor fixedly installed on the outside of the box body, the output shaft of the first transmission motor passes through the box body and the square frame and the end of the output shaft is fixedly connected to the rotating shaft of the first driving roller; the second transmission motor is a forward and reverse motor, and the output shaft of the second transmission motor passes through the box body and the square frame and the end of the output shaft is fixedly connected to the rotating shaft of the second driving roller.

[0012] Further, a negative pressure mechanism is fixedly connected to the outer sides of the two square frames. The negative pressure mechanism is in the shape of a quasi-hexagonal tube body and includes two symmetrically and obliquely arranged and communicating first guiding square tubes. One end of each first guiding square tube is vertically and communicatively provided with a precipitation square tube; the two precipitation square tubes are respectively located on the outer sides of the corresponding square frames and are fixedly connected to the upper parts of the square frames. A plurality of ventilation holes are evenly formed in both sides of the precipitation square tube, and the ventilation holes are located above the first transmission belt; one end of the precipitation square tube is communicatively provided with a second guiding square tube, and the second guiding square tube is obliquely arranged and the tube orifice thereof passes through the middle of the corresponding square frame and faces above the second transmission belt.

[0013] A plurality of negative pressure fans are communicatively installed below the connection part of the two first guiding square tubes, and the negative pressure fans face above the first transmission belt.

[0014] Further, the material guiding mechanism includes a material guiding square tube. L-shaped brackets are fixedly arranged on both sides of one end of the material guiding square tube. One end of the L-shaped bracket is rotationally connected to the square frame through a fixed rotating shaft and is below the end far away from the box body; a fixed frame is fixedly arranged at the bottom of the end of the square frame far away from the box body, and a hydraulic telescopic rod is fixedly installed on the fixed frame; hinge grooves are symmetrically and fixedly arranged below one end of the material guiding square tube, and the telescopic end of the hydraulic telescopic rod is hinged to the corresponding hinge groove.

[0015] Further, one end of the material guiding square tube far away from the square frame is closed; a rotating groove is formed through the bottom of the material guiding square tube, and a turning plate is arranged inside the rotating groove; rotating rods are fixedly arranged in the middle of both sides of the turning plate, rotating holes are formed in both sides of the material guiding square tube, and the rotating rods pass through the corresponding rotating holes and are rotationally connected to the rotating holes; convex blocks are fixedly arranged at the ends of the rotating rods, and a torsion spring is sleeved on the rotating rods. Two ends of the torsion spring are respectively fixedly connected to the convex blocks and the outer side wall of the material guiding square tube.

[0016] Further, a stop block is fixedly arranged on one side of the rotating groove close to the square frame, and the stop block is located below the turning plate; the port of one end of the material guiding square tube close to the square frame is located on one side of the end of the second transmission belt; a baffle is extended at the top of one end of the material guiding square tube close to the square frame, and the baffle is located below the first transmission belt.

[0017] Further, one side surface of the quasi-pyramidal funnel close to the first conveyor belt mechanism is vertically arranged, and the other three side surfaces are all obliquely arranged; a through groove is formed through one side surface of the quasi-pyramidal funnel far away from the first conveyor belt mechanism, and the through groove is fixedly communicated with an L-shaped pipe; the separation net is fixedly arranged on the through groove.

[0018] Furthermore, a rotating motor is fixedly installed inside the base. The output end of the rotating motor passes through the base and is fixedly connected to the bottom of the box body. A door is installed below one side of the box body away from the support.

[0019] A transportation method using the above-mentioned negative pressure dust-removing loading and unloading device for a ship unloader includes the following steps:

[0020] S1. When there is less small-particle material, make the first drive motor rotate forward and the second drive motor rotate backward, and add material to the quasi-pyramidal funnel. The large-particle material is conveyed to the ship's hold by the first conveyor belt, and the small-particle material is collected into the box body.

[0021] S2. When there is more small-particle material, make the first drive motor rotate forward and the second drive motor rotate forward, and add material to the quasi-pyramidal funnel. The large-particle material is conveyed to the ship's hold by the first conveyor belt, and the small-particle material is conveyed to the guiding mechanism by the second conveyor belt and then concentrated and sent to the ship's hold.

[0022] S3. Intermittently start the fan of the negative pressure mechanism, so that the material can be further separated and conveyed during transportation; adjust the hydraulic telescopic rod according to the depth of the ship's hold to make the guiding mechanism rotate and reduce the falling height of the small-particle material.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) When loading materials onto a ship, the present invention first loads the materials through a pyramid-shaped funnel, and the large particles fall directly from the small-diameter end of the pyramid-shaped funnel onto the first conveyor belt mechanism for transmission, and the small particles enter the second conveyor belt mechanism through the separation net and the L-shaped tube, thereby realizing synchronous transmission of the two transmission belts; when there are fewer small particles, the second transmission motor is reversed to make the small particles on the second conveyor belt fall into the box body and be collected, thereby preventing the small particles from falling into the ship's hold and generating too much dust; when there are more small particles, the second transmission motor is rotated forward to make the small particles on the second conveyor belt fall into the material guide mechanism, and then be concentratedly sent to the ship's hold, thereby avoiding material waste and reducing the impact of dust generation; specifically, when the small particles are just beginning to be conveyed to the guide mechanism by the second conveyor belt When the material is in the feeding mechanism, the flip plate cannot be flipped because the material is not particularly heavy, and the small particles are collected in the guiding square tube. At this time, only large particles fall into the ship hold. The dust generated by the loading of large particles will be much smaller, reducing the impact of dust in the loading process; when the material in the guiding square tube continues to increase, gravity presses down one side of the flip plate, so that the small particles accumulated on one side of the flip plate fall into the ship hold in a concentrated manner, and the small particles are loaded into the ship. The other side of the flip plate is tilted and pushes the material downward to prevent the material from being stuck above the guiding square tube; this method avoids the waste of material, and through the guiding of the guiding square tube and the concentrated falling treatment, the generation of dust is reduced as much as possible, and the time period of dust impact is greatly shortened, thereby comprehensively reducing the impact of dust generation.

[0025] (2) The present invention cooperates with the first conveyor belt mechanism and the second conveyor belt mechanism to enable the materials initially separated by the box to be further separated and transported during the transportation process, while greatly reducing the dust problem during the material transportation process; specifically, when the large particle materials are initially separated by the box and transported by the first conveyor belt, the initial separation of the box is not complete and the conveyor belt transportation movement causes dust to be generated during the transportation process. At this time, by starting the negative pressure fan, the negative pressure fan sucks the dust and some small particle materials into the first guide square tube through the negative pressure effect. Under the guidance of the first guide square tube, the dust and some small particle materials enter the sedimentation square tube. At this time, due to the presence of the vent, the pressure in the sedimentation square tube becomes normal, and some materials will fall from the sedimentation square tube into the second guide square tube and be introduced into the second conveyor belt by the second guide square tube. Then, the negative pressure fan is intermittently opened and closed to make the materials adhered to the vent of the sedimentation square tube fall into the second guide square tube and be subsequently introduced into the second conveyor belt. This comprehensively realizes that the materials are further separated and transported while greatly reducing the dust problem during the material transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a negative pressure dust suppression loading and unloading device for a ship loader according to the present invention;

[0027] Figure 2 Schematic diagram of the dispersion structure of a negative-pressure dust-removing loading and unloading device for a ship unloader according to the present invention;

[0028] Figure 3 Schematic cross-sectional structure diagram of a negative-pressure dust-removing loading and unloading device for a ship unloader according to the present invention;

[0029] Figure 4 Schematic diagram of the box body dispersion structure of a negative-pressure dust-removing loading and unloading device for a ship unloader according to the present invention;

[0030] Figure 5 Schematic diagram of the negative-pressure mechanism structure of a negative-pressure dust-removing loading and unloading device for a ship unloader according to the present invention;

[0031] Figure 6 Schematic diagram of a partial structure of a negative-pressure dust-removing loading and unloading device for a ship unloader according to the present invention;

[0032] Figure 7 Schematic diagram of the material guiding mechanism structure of a negative-pressure dust-removing loading and unloading device for a ship unloader according to the present invention;

[0033] Figure 8 Schematic diagram of the dispersion structure of the material pouring mechanism of a negative-pressure dust-removing loading and unloading device for a ship unloader according to the present invention.

[0034] The reference numerals are as follows:

[0035] Base - 100; Rotating motor - 110; Box body - 200; Pyramid-shaped funnel - 210; Through groove - 211; Separation net - 212; L-shaped pipe - 220; Door body - 230; Notch - 240; First conveyor belt mechanism - 300; First conveyor belt - 310; First driving roller - 320; First driven roller - 330; Second conveyor belt mechanism - 400; Second conveyor belt - 410; Second driving roller - 420; Second driven roller - 430; Negative-pressure mechanism - 500; First guiding square pipe - 510; Precipitation square pipe - 520; Vent hole - 521; Second guiding square pipe - 530; Negative-pressure fan - 540; Support - 600; Square frame - 610; Support rod - 620; Fixed frame - 630; Fixed rotating shaft - 640; Hydraulic telescopic rod - 650; Material guiding mechanism - 700; Material guiding square pipe - 710; Rotating hole - 711; Baffle - 720; L-shaped bracket - 730; Hinge groove - 740; Rotating notch - 750; Block - 751; Flipping plate - 760; Rotating rod - 761; Protrusion - 762; Torsion spring - 763; Transmission mechanism - 800; First driving motor - 810; Second driving motor - 820. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to embodiments. Of course, the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] Although the steps in the present invention are arranged with reference numerals, they are not used to limit the sequence of the steps. Unless the sequence of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative sequence of the steps can be adjusted. It can be understood that the term "and / or" used herein relates to and encompasses any and all possible combinations of one or more of the associated listed items.

[0038] Embodiment

[0039] As Figures 1 to 8 shown, a negative pressure dust-removing loading and unloading device for a ship unloader includes a base 100, and a box body 200 is installed on the base 100; a notch 240 is formed on one side of the box body 200, and a bracket 600 is fixedly connected to the notch 240. The bracket 600 is successively installed with a first conveyor belt mechanism 300 and a second conveyor belt mechanism 400 from top to bottom; the top of the box body 200 is open, and a prismoid-shaped funnel 210 is fixedly installed on the opening; the large-diameter end of the prismoid-shaped funnel 210 faces the outside of the box body 200, and the small-diameter end of the prismoid-shaped funnel 210 faces above the first conveyor belt mechanism 300; on the side of the box body 200 and away from the first conveyor belt mechanism 300, an L-shaped pipe 220 is fixedly installed. One end of the L-shaped pipe 220 is communicated with one side of the prismoid-shaped funnel 210, and the other end of the L-shaped pipe 220 faces above the second conveyor belt mechanism 400; a separation net 212 is fixedly arranged at the communication part of one end of the L-shaped pipe 220 and the prismoid-shaped funnel 210; a transmission mechanism 800 is fixedly installed on the outside of the box body 200 for controlling the transmission of the first conveyor belt mechanism 300 and the second conveyor belt mechanism 400; at one end of the bracket 600 away from the box body 200, a material guiding mechanism 700 is installed for guiding the material.

[0040] When the present invention is used for loading materials onto a ship, the materials are first loaded through the prismoid-shaped funnel 210. The large-particle materials directly fall from the small-diameter end of the prismoid-shaped funnel 210 onto the first conveyor belt mechanism 300 for transmission, and the small-particle materials enter the second conveyor belt mechanism 400 through the separation net 212 and the L-shaped pipe 220, realizing synchronous transmission of the two conveyor belts; for the selection of the aperture of the separation net 212, it can be conventionally selected according to the actual material transportation situation.

[0041] Further, the bracket 600 includes two square frames 610. One end of the square frame 610 is fixedly connected within the notch 240 of the box body 200, and the other end of the square frame 610 is fixedly connected with a support rod 620, which is fixedly connected to the lower side of one side of the box body 200. The first conveyor belt mechanism 300 and the second conveyor belt mechanism 400 are arranged between the two square frames 610. A triangular structure is formed by the box body 200, the square frame 610, and the support rod 620 to improve the stability of the device.

[0042] The first conveyor belt mechanism 300 includes a first driving roller 320 and a first driven roller 330. A first conveyor belt 310 is sleeved outside the first driving roller 320 and the first driven roller 330. Both ends of the first driving roller 320 are rotationally connected to the square frame 610 through a rotating shaft and above the end close to the box body 200, and both ends of the first driven roller 330 are rotationally connected to the square frame 610 through a rotating shaft and above the end far from the box body 200.

[0043] The second conveyor belt mechanism 400 includes a second driving roller 420 and a second driven roller 430. A second conveyor belt 410 is sleeved outside the second driving roller 420 and the second driven roller 430. Both ends of the second driving roller 420 are rotationally connected to the square frame 610 through a rotating shaft and below the end close to the box body 200, and both ends of the second driven roller 430 are rotationally connected to the square frame 610 through a rotating shaft and below the end far from the box body 200.

[0044] Both the first driving roller 320 and the second driving roller 420 are controlled and driven through a transmission mechanism 800, which will be described in detail later.

[0045] Furthermore, the transmission mechanism 800 includes a first transmission motor 810 and a second transmission motor 820 fixedly installed outside the box body 200. The output shaft of the first transmission motor 810 passes through the box body 200 and the square frame 610, and the end of the output shaft is fixedly connected to the rotating shaft of the first driving roller 320. The second transmission motor 820 is a forward and reverse rotation motor. The output shaft of the second transmission motor 820 passes through the box body 200 and the square frame 610, and the end of the output shaft is fixedly connected to the rotating shaft of the second driving roller 420.

[0046] When there is less small-particle material in the present invention, the second driving motor 820 rotates in reverse, so that the small-particle material on the second conveyor belt 410 falls into the interior of the box body 200 to be collected, preventing the small-particle material from falling into the ship's hold and causing excessive dust; when there is more small-particle material, the second driving motor 820 rotates forward, so that the small-particle material on the second conveyor belt 410 falls into the material guiding mechanism 700, and then is centrally sent into the ship's hold, avoiding material waste and reducing the impact of dust generation at the same time; the material guiding mechanism 700 will be described in detail later.

[0047] It should be noted that the first driving motor 810, the second driving motor 820 and subsequent electrical equipment in the present invention are all controlled by an external power source, which will not be described in detail here.

[0048] Furthermore, a negative pressure mechanism 500 is fixedly connected to the outside of the two square frames 610. The negative pressure mechanism 500 is in the shape of a quasi-hexagonal tube body and includes two symmetrically inclined and connected first guiding square tubes 510. One end of the first guiding square tube 510 is vertically connected with a precipitation square tube 520; the two precipitation square tubes 520 are respectively located outside the corresponding square frames 610 and are fixedly connected above the square frames 610. A plurality of ventilation holes 521 are evenly opened on both sides of the precipitation square tube 520, and the ventilation holes 521 are located above the first conveyor belt 310; one end of the precipitation square tube 520 is connected with a second guiding square tube 530, and the second guiding square tube 530 is inclined and the pipe orifice passes through the middle of the corresponding square frame 610 and faces above the second conveyor belt 410;

[0049] A plurality of negative pressure fans 540 are connected and installed below the connection of the two first guiding square tubes 510, and the negative pressure fans 540 face above the first conveyor belt 310.

[0050] Through the cooperation of the negative pressure mechanism 500 with the first conveyor belt mechanism 300 and the second conveyor belt mechanism 400, while the materials initially separated by the box body 200 can be further separated and conveyed during transportation, the dust problem during material transportation is greatly reduced. Specifically, when the large particle materials are initially separated by the box body 200 and transported by the first conveyor belt 310, dust is generated during transportation due to the incomplete initial separation of the box body 200 and the movement of the conveyor belt transportation. At this time, by starting the negative pressure fan 540, the negative pressure fan 540 sucks the dust and some small particle materials into the first guiding square pipe 510 through negative pressure. Under the guiding action of the first guiding square pipe, the dust and some small particle materials enter the precipitation square pipe 520. At this time, due to the existence of the ventilation holes 521, the pressure in the precipitation square pipe 520 becomes normal, and some materials will fall from the precipitation square pipe 520 into the second guiding square pipe 530 and be guided by the second guiding square pipe 530 onto the second conveyor belt 410. Then, the negative pressure fan 540 is intermittently opened and closed, so that the materials adhering to the ventilation holes 521 of the precipitation square pipe 520 fall into the second guiding square pipe 530 and are subsequently guided onto the second conveyor belt 410. While the materials are further separated and conveyed, the dust problem during material transportation is greatly reduced.

[0051] It should be noted that if the number of ventilation holes 521 is large, most of the gas inhaled from the negative pressure fan 540 has been discharged from the ventilation holes 521. Even if a small amount of gas enters the second guiding square pipe 530, it does not affect the transportation of the second conveyor belt 410, and no detailed description will be made here.

[0052] Moreover, since the overall housing of the negative pressure mechanism 500 surrounds the first conveyor belt mechanism 300, it can also play a role of protection and isolation.

[0053] Furthermore, the material guiding mechanism 700 includes a material guiding square pipe 710. On both sides of one end of the material guiding square pipe 710, L-shaped brackets 730 are fixedly provided. One end of the L-shaped bracket 730 is rotatably connected to the square frame 610 through a fixed rotating shaft 640 and is located below the end far from the box body 200. At the bottom of the end of the square frame 610 far from the box body 200, a fixed frame 630 is fixedly provided. A hydraulic telescopic rod 650 is fixedly installed on the fixed frame 630. Symmetrically fixed hinge grooves 740 are provided below one end of the material guiding square pipe 710. The telescopic end of the hydraulic telescopic rod 650 is hinged to the corresponding hinge groove 740.

[0054] By the telescopic movement of the hydraulic telescopic rod 650, the material guiding square pipe 710 and the L-shaped bracket 730 can be controlled to rotate around the fixed rotating shaft 640, thereby adjusting the angle of the material guiding square pipe 710, facilitating flexible adjustment according to the holds with different depths, reducing the falling height of the small particle materials, and thus reducing the generation of dust.

[0055] Furthermore, one end of the material guiding square tube 710 away from the square frame 610 is closed; a rotating notch 750 is formed through the bottom of the material guiding square tube 710, and a turning plate 760 is arranged inside; at the middle parts of both sides of the turning plate 760, rotating rods 761 are fixedly arranged, rotating holes 711 are formed in both sides of the material guiding square tube 710, the rotating rods 761 pass through the corresponding rotating holes 711 and are rotatably connected with the rotating holes 711; a convex block 762 is fixedly arranged at the end of the rotating rod 761, a torsion spring 763 is sleeved on the rotating rod 761, and both ends of the torsion spring 763 are fixedly connected with the convex block 762 and the outer side wall of the material guiding square tube 710 respectively.

[0056] Furthermore, a stop block 751 is fixedly arranged on one side of the rotating notch 750 close to the square frame 610, and the stop block 751 is located below the turning plate 760; the turning direction of the turning plate 760 is restricted by the stop block 751; one end port of the material guiding square tube 710 close to the square frame 610 is located on one side of the end of the second conveyor belt 410; a baffle 720 is extended and arranged at the top of one end of the material guiding square tube 710 close to the square frame 610, and the baffle 720 is located below the first conveyor belt 310.

[0057] In the present invention, when the small particle materials are just conveyed into the material guiding mechanism 700 by the second conveyor belt 410, since the materials are not particularly heavy, the turning plate 760 cannot be turned over yet. Then the small particle materials are collected into the material guiding square tube 710. At this time, only the large particle materials fall into the ship's hold. The dust generated by loading the large particle materials will be much less, reducing the dust influence during the loading process. When the materials in the material guiding square tube 710 increase continuously, one side of the turning plate 760 is pressed down by gravity, so that the small particle materials accumulated on one side of the turning plate 760 fall into the ship's hold concentratedly. The small particle materials are loaded onto the ship, and the other side of the turning plate 760 tilts up and pushes the materials downward at the same time, preventing the materials from getting stuck above the material guiding square tube 710. This way avoids the waste of materials. At the same time, through the material guiding of the material guiding square tube 710 and the concentrated dropping treatment, the generation of dust is reduced as much as possible, and the time period affected by the dust is greatly shortened, thereby comprehensively reducing the influence of dust generation.

[0058] It should be noted that the outer shell of the material guiding square tube 710 can also guide the large particle materials, thereby reducing the falling height of the large particle materials and further reducing the generation of dust. At the same time, the falling of the large particle materials will impact the material guiding square tube 710 to a certain extent, preventing the small particle materials from getting stuck above the turning plate 760 and not sliding down.

[0059] Further, the prismoid-like funnel 210 is vertically arranged on a side close to the first conveyor mechanism 300, and the other three sides are all inclined; a through slot 211 is formed through a side of the prismoid-like funnel 210 away from the first conveyor mechanism 300, and the through slot 211 is fixedly communicated with the L-shaped pipe 220; the separation net 212 is fixedly arranged on the through slot 211; the materials are separated by feeding the materials to the side with the separation net 212.

[0060] Further, a rotating motor 110 is fixedly arranged inside the base 100, and the output end of the rotating motor 110 passes through the base 100 and is fixedly connected to the bottom of the box body 200; the rotation angle of the box body 200 can be controlled by the rotating motor 110, so as to adjust the material transportation direction; a door body 230 is installed below one side of the box body 200 away from the support 600; the small particle materials accumulated in the box body 200 are collected through the door body 230.

[0061] A transportation method using the above-mentioned negative pressure dust-removing loading and unloading device for ship loaders includes the following steps:

[0062] S1. When the amount of small particle materials is small, make the first driving motor 810 rotate forward and the second driving motor 820 rotate in reverse, add materials to the prismoid-like funnel 210, the large particle materials are conveyed to the ship's hold by the first conveyor belt 310, and the small particle materials are collected into the box body 200;

[0063] S2. When the amount of small particle materials is large, make the first driving motor 810 rotate forward and the second driving motor 820 rotate forward, add materials to the prismoid-like funnel 210, the large particle materials are conveyed to the ship's hold by the first conveyor belt 310, and the small particle materials are conveyed to the guiding mechanism 700 by the second conveyor belt 410, and then concentrated and sent to the ship's hold;

[0064] S3. Intermittently start the fan of the negative pressure mechanism 500, and the materials can be further separated and conveyed during the transportation process; adjust the hydraulic telescopic rod 650 according to the depth of the ship's hold, and make the guiding mechanism 700 rotate to reduce the falling height of the small particle materials.

[0065] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several improvements and transformations can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A negative pressure dust-removing loading and unloading device for a ship unloader, characterized in that, The invention comprises a base (100), on which a box (200) is mounted; a notch (240) is provided on one side of the box (200), a bracket (600) is fixedly connected to the notch (240), and a first conveyor belt mechanism (300) and a second conveyor belt mechanism (400) are sequentially mounted on the bracket (600) from top to bottom; the top of the box (200) is open, and a pyramid-shaped funnel (210) is fixedly mounted on the opening; the large-diameter end of the pyramid-shaped funnel (210) faces the outside of the box (200), and the small-diameter end of the pyramid-shaped funnel (210) faces above the first conveyor belt mechanism (300); the box (200) is away from the first conveyor belt mechanism (300). An L-shaped tube (220) is fixedly installed on one side of a conveyor belt mechanism (300), one end of the L-shaped tube (220) is connected to one side of a pyramid-shaped funnel (210), and the other end of the L-shaped tube (220) faces upward from a second conveyor belt mechanism (400); a separation net (212) is fixedly installed at the connection point between one end of the L-shaped tube (220) and the pyramid-shaped funnel (210); a transmission mechanism (800) is fixedly installed on the outside of the box (200) for controlling the transmission of the first conveyor belt mechanism (300) and the second conveyor belt mechanism (400); a material guide mechanism (700) is installed on one end of the bracket (600) away from the box (200) for guiding materials; The bracket (600) comprises two square frames (610), and the outer sides of the two square frames (610) are fixedly connected to a negative pressure mechanism (500). The negative pressure mechanism (500) is in the shape of a hexagonal tube body, comprising two symmetrically inclined and connected first guide square tubes (510), one end of the first guide square tube (510) is vertically connected to a sedimentation square tube (520); the two sedimentation square tubes (520) are respectively located on the outer sides of the corresponding square frames (610) and fixedly connected to the top of the square frames (610), and a plurality of ventilation holes (521) are evenly opened on both sides of the sedimentation square tubes (520), and the ventilation holes (521) are located above the first transmission belt (310); one end of the sedimentation square tube (520) is connected to a second guide square tube (530), and the second guide square tube (530) is inclined and the tube mouth passes through the middle of the corresponding square frame (610) toward the top of the second transmission belt mechanism (400); A plurality of negative pressure fans (540) are installed below the connection between the two first guide square tubes (510), and the negative pressure fans (540) face upwards of the first transmission belt (310); The material guiding mechanism (700) includes a material guiding square pipe (710). On both sides of one end of the material guiding square pipe (710), L-shaped brackets (730) are fixedly arranged. One end of the L-shaped bracket (730) is rotationally connected to the square frame (610) through a fixed rotating shaft (640) and is rotationally connected to the lower part of the end far from the box body (200). At the bottom of the end of the square frame (610) far from the box body (200), a fixed frame (630) is fixedly arranged. A hydraulic telescopic rod (650) is fixedly installed on the fixed frame (630). Symmetrically fixed with hinge grooves (740) under one end of the material guiding square pipe (710), the telescopic end of the hydraulic telescopic rod (650) is hinged to the corresponding hinge groove (740). One end of the material guiding square pipe (710) far from the square frame (610) is closed. A rotating notch (750) is formed through the bottom of the material guiding square pipe (710), and a turning plate (760) is arranged inside. In the middle of both sides of the turning plate (760), rotating rods (761) are fixedly arranged. Rotating holes (711) are formed on both sides of the material guiding square pipe (710). The rotating rods (761) pass through the corresponding rotating holes (711) and are rotationally connected to the rotating holes (711). A convex block (762) is fixedly arranged at the end of the rotating rod (761). A torsion spring (763) is sleeved on the rotating rod (761). Both ends of the torsion spring (763) are fixedly connected to the convex block (762) and the outer side wall of the material guiding square pipe (710) respectively.

2. The negative pressure dust-removing loading and unloading device for a ship unloader according to claim 1, wherein, One end of the square frame (610) is fixedly connected inside the notch (240) of the box body (200). The other end of the square frame (610) is fixedly connected with a support rod (620). The support rod (620) is fixedly connected to the lower part of one side of the box body (200). The first conveyor belt mechanism (300) and the second conveyor belt mechanism (400) are arranged between two square frames (610). The first conveyor belt mechanism (300) includes a first driving roller (320) and a first driven roller (330). A first conveyor belt (310) is jointly sleeved on the outer sides of the first driving roller (320) and the first driven roller (330). Both ends of the first driving roller (320) are rotationally connected to the square frame (610) through a rotating shaft and are rotationally connected to the upper part of the end close to the box body (200). Both ends of the first driven roller (330) are rotationally connected to the square frame (610) through a rotating shaft and are rotationally connected to the upper part of the end far from the box body (200). The second conveyor belt mechanism (400) includes a second driving roller (420) and a second driven roller (430). A second conveyor belt (410) is jointly sleeved on the outer sides of the second driving roller (420) and the second driven roller (430). Both ends of the second driving roller (420) are rotationally connected to the square frame (610) through a rotating shaft and are rotationally connected to the lower part of the end close to the box body (200). Both ends of the second driven roller (430) are rotationally connected to the square frame (610) through a rotating shaft and are rotationally connected to the lower part of the end far from the box body (200).

3. The negative pressure dust-removing loading and unloading device for ship unloaders according to claim 2, wherein, The transmission mechanism (800) comprises a first transmission motor (810) and a second transmission motor (820) fixedly mounted on the outside of the housing (200); the output shaft of the first transmission motor (810) passes through the housing (200) and the square frame (610), and the end of the output shaft is fixedly connected to the rotating shaft of the first active roller (320); the second transmission motor (820) is a forward and reverse rotating motor; the output shaft of the second transmission motor (820) passes through the housing (200) and the square frame (610), and the end of the output shaft is fixedly connected to the rotating shaft of the second active roller (420).

4. The negative pressure dust-removing loading and unloading device for a ship unloader according to claim 1, characterized in that, A stopper (751) is fixedly provided on one side of the rotating notch (750) and close to the square frame (610), and the stopper (751) is located below the flip plate (760); an end port of the material guiding square tube (710) and close to the square frame (610) is located on one side of the end of the second transmission belt (410); a baffle (720) is extended from the top of one end of the material guiding square tube (710) and close to the square frame (610), and the baffle (720) is located below the first transmission belt (310).

5. The negative pressure dust removal type loading and unloading device for a ship unloader according to claim 1, characterized in that, The pyramid-shaped funnel (210) is vertically arranged on one side thereof close to the first conveyor belt mechanism (300), and the other three side surfaces are inclined. A through groove (211) is formed through one side of the pyramid-shaped funnel (210) away from the first conveyor belt mechanism (300), and the through groove (211) is fixedly connected to the L-shaped tube (220). The separation net (212) is fixedly arranged on the through groove (211).

6. The negative pressure dust removal type loading and unloading device for a ship unloader according to claim 1, characterized in that, A rotating motor (110) is fixedly provided inside the base (100), and an output end of the rotating motor (110) passes through the base (100) and is fixedly connected to the bottom of the box (200); a door (230) is installed below a side of the box (200) away from the bracket (600).

7. A transportation method using the negative pressure dust suppression loading and unloading device for a ship loader according to any one of claims 1 to 6, characterized in that: The steps include: S1. When there is less small particle material, the first transmission motor (810) is rotated forward and the second transmission motor (820) is rotated reversely to add material into the pyramid-shaped funnel (210). Large particle material is conveyed to the ship hold by the first transmission belt (310), and small particle material is collected in the box (200); S2. When there are a lot of small particles, the first transmission motor (810) and the second transmission motor (820) are rotated forward, and materials are added to the pyramid-shaped funnel (210). The large particles are conveyed to the ship compartment by the first transmission belt (310), and the small particles are conveyed to the material guide mechanism (700) by the second transmission belt (410), and then collectively conveyed to the ship compartment. S3. The fan of the negative pressure mechanism (500) is intermittently started so that the materials can be further separated and conveyed during transportation; the hydraulic telescopic rod (650) is adjusted according to the depth of the ship's hold to rotate the material guide mechanism (700) so that the falling height of the small particles of materials becomes lower.

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