Dust suppression discharging device for bulk materials

Abstract

The utility model discloses a dust suppression discharging device for bulk materials, and relates to the technical field of discharging and distributing devices. The hydraulic telescopic steel pipe is arranged at the bottom of the bulk machine; a bulk dust collection cover is arranged at the bottom of the hydraulic telescopic steel pipe; a first infrared induction photoelectric switch and a second infrared induction photoelectric switch are mounted on the outer wall of the bulk dust collection cover; an infrared induction photoelectric switch cable connected with the first infrared induction photoelectric switch and the second infrared induction photoelectric switch is connected to the pulley block structure, and an electromagnetic discharging valve is arranged at the bottom of the warehouse outlet of the material warehouse. The first infrared induction photoelectric switch is electrically connected with the electromagnetic discharge valve, and the second infrared induction photoelectric switch is electrically connected with a hydraulic control motor of the hydraulic telescopic steel pipe; dust can be effectively suppressed in the whole discharging process, meanwhile, accurate discharging is guaranteed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a material discharging device, in particular to a bulk material dust suppression discharging device. Background Art

[0002] The dispensing of bulk materials typically requires specialized equipment to regularly control and continuously convey powdered or small lumps. This equipment, comprised of a vacuum hose and wire rope, achieves high loading efficiency and minimizes dust pollution. Bulk material dispensing typically involves discharging materials from high altitudes through a telescopic chute onto a loading vehicle. To prevent dust from escaping, environmentally friendly bags or dust hoods are commonly used.

[0003] Environmentally friendly bags are highly effective filter materials. During bulk unloading, they effectively absorb dust and exhaust gases, reducing their environmental impact. Compared to other filter materials, they are more environmentally friendly and economical. Dust hoods function similarly to environmentally friendly bags, using a fan to absorb dispersed dust and prevent contamination from spreading.

[0004] Although the above methods can reduce the volatilization and diffusion of bulk materials during the distribution process, they cannot effectively prevent material overflow and dust leakage due to excessive lifting of environmental protection bags or dust collection hoods during the bulk material distribution process; especially when the height of the material stacking cannot be accurately judged, even with protective measures, it is impossible to meet environmental protection requirements and efficient, accurate and stable production needs. Utility Model Content

[0005] The utility model overcomes the deficiencies of the prior art and proposes a bulk material dust suppression discharging device, which can realize precise and environmentally friendly material discharging during the bulk material discharging process.

[0006] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0007] A bulk material dust suppression and discharging device comprises a material storage and a bulk loader arranged at the material storage outlet, wherein a hydraulic telescopic steel pipe is arranged at the bottom of the bulk loader; the hydraulic telescopic steel pipe is connected to a hydraulic control motor, and a bulk dust collecting hood is installed at the bottom of the hydraulic telescopic steel pipe;

[0008] A first infrared sensing photoelectric switch and a second infrared sensing photoelectric switch are installed on the outer wall of the bulk dust collecting hood; the first infrared sensing photoelectric switch and the second infrared sensing photoelectric switch are both connected to infrared sensing photoelectric switch cables; the infrared sensing photoelectric switch cables are connected to the pulley group structure, so that the infrared sensing photoelectric switch cables are automatically retracted and extended; an electromagnetic discharge valve is provided at the bottom of the material warehouse outlet; the first infrared sensing photoelectric switch is electrically connected to the electromagnetic discharge valve, and the second infrared sensing photoelectric switch is electrically connected to the hydraulic control motor of the hydraulic telescopic steel pipe.

[0009] Furthermore, a fixing base is installed on one side outer wall of the bulk dust collecting hood; the first infrared sensing photoelectric switch and the second infrared sensing photoelectric switch are arranged on the fixing base.

[0010] Furthermore, the first infrared induction photoelectric switch and the second infrared induction photoelectric switch are located at the same height.

[0011] Furthermore, the pulley block structure is arranged at the bottom of the material storage.

[0012] Furthermore, the pulley group structure includes two fixed pulleys and one movable pulley, the two fixed pulleys are rotatably connected to the bottom outside the material warehouse, and the movable pulley is connected to a heavy hammer structure; the infrared sensing photoelectric switch cable passes around a fixed pulley, a movable pulley and another fixed pulley in turn.

[0013] The beneficial effects of the present invention compared to the prior art are as follows:

[0014] The utility model detects the material height through the first set of photoelectric switches. When the height of the dust hood rises above the set height of the material detected by the first set of photoelectric switches, the photoelectric switches cannot detect the material and the discharge valve stops automatically, thereby preventing the dust hood from rising too high, causing material and dust overflow and environmental pollution. When the second set of photoelectric switches detects the material position, the elevator automatically rises. When it exceeds the detection position, the elevator automatically stops. The power cords of the two sets of photoelectric switches are arranged through a special retractable pulley device. The system achieves precise control and efficient operation of the bulk material dispensing process, improves production efficiency, reduces manual intervention, reduces material overflow due to improper manual operation or mechanical failure, and effectively meets environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the bulk material dust suppression and discharging device described in the utility model;

[0016] In the picture:

[0017] 1- transport vehicle; 2- electromagnetic discharge valve; 3- hydraulic telescopic steel pipe; 4- bulk dust collection hood; 5- fixed pulley; 6- movable pulley; 7- infrared sensing photoelectric switch cable; 8- first infrared sensing photoelectric switch; 9- fixing base; 10- material warehouse; 11- second infrared sensing photoelectric switch. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0019] See also Figure 1 This embodiment provides a bulk material dust suppression and discharge device, comprising a material storage 10 and a bulk loader located at the discharge port of the storage 10. The bulk loader is an existing device, and this embodiment uses a Kosino KSN-400 model. A hydraulically retractable steel pipe 3 is installed at the bottom of the bulk loader. The hydraulically retractable steel pipe 3 is connected to a hydraulic control motor, which controls the retraction and expansion of the hydraulically retractable steel pipe 3. A bulk dust hood 4 is installed at the bottom of the hydraulically retractable steel pipe 3. The bulk dust hood 4 prevents dust from dispersing during material discharge. The bulk dust hood 4 and the hydraulically retractable steel pipe 3 are installed in appropriate locations to ensure that they properly cover the material area.

[0020] A fixing base 9 is mounted on one side outer wall of the bulk dust hood 4; a first infrared sensing photoelectric switch 8 and a second infrared sensing photoelectric switch 11 are mounted on the fixing base 9; the first infrared sensing photoelectric switch 8 and the second infrared sensing photoelectric switch 11 are located at the same height. The first infrared sensing photoelectric switch 8 and the second infrared sensing photoelectric switch 11 are both connected to an infrared sensing photoelectric switch cable 7; a pulley structure is provided at the bottom of the material storage 10, and the infrared sensing photoelectric switch cable 7 is connected to the pulley structure. The pulley structure includes two fixed pulleys 5 and a movable pulley 6. The two fixed pulleys 5 are rotatably connected to the outer bottom of the material storage 10, and the movable pulley 6 is connected to a weight structure. The infrared sensing photoelectric switch cable 7 passes through one fixed pulley 5, the movable pulley 6, and the other fixed pulley 5 in sequence, realizing the free retraction and extension of the infrared sensing photoelectric switch cable 7, which can ensure that the first infrared sensing photoelectric switch 8 and the second infrared sensing photoelectric switch 11 can freely rise and fall with the bulk dust hood 4 without affecting the normal operation of the two photoelectric switches. Since the two infrared sensing photoelectric switches are located at the bulk dust collecting hood 4 at the bottom of the hydraulic telescopic steel pipe 3, the monitoring accuracy of the two infrared sensing photoelectric switches on the material height can be effectively improved, so that they can respond quickly and accurately.

[0021] An electromagnetic discharge valve 2 is provided at the bottom of the outlet of the material warehouse 10; the first infrared sensing photoelectric switch 8 is electrically connected to the electromagnetic discharge valve 2, and is used to control the electromagnetic discharge valve 2 to realize discharging and stopping of materials at a certain position; the second infrared sensing photoelectric switch 11 is electrically connected to the hydraulic control motor connected to the hydraulic telescopic steel pipe 3, and is used to control the hydraulic control motor, thereby controlling the lifting and lowering of the hydraulic telescopic steel pipe 3.

[0022] In this embodiment, the model of the first infrared sensing photoelectric switch 8 is E3F-DS30C4, and the model of the second infrared sensing photoelectric switch 11 is E3F-DS30C4. The power supply range of the first infrared sensing photoelectric switch 8 and the second infrared sensing photoelectric switch 11 are both DC6-36V, three-wire PNP type.

[0023] This embodiment proposes a bulk material dust suppression and discharging device whose working principle is:

[0024] The transport vehicle 1 drives to the bottom of the material warehouse 10 and starts to extend the hydraulic telescopic steel pipe 3. Since the second infrared sensing photoelectric switch 11 is set at the bulk dust collecting hood 4 at the bottom, when it reaches the height value set by the second infrared sensing photoelectric switch 11, that is, when it detects a certain position from the bottom of the transport vehicle 1 bucket, the second infrared sensing photoelectric switch 11 sends a signal to the control unit to control the hydraulic telescopic steel pipe 3 to stop descending; the first infrared sensing photoelectric switch 8 controls the electromagnetic discharge valve 2 to open and discharge the material. As the material height increases, the second infrared sensing photoelectric switch 11 and the first infrared sensing photoelectric switch 8 jointly detect the material height, and the second infrared sensing photoelectric switch 11 controls the hydraulic telescopic steel pipe 3 to continue to rise with the material height. During this process, the first infrared sensing photoelectric switch 8 controls the electromagnetic discharge valve 2 to continue to open and discharge the material; when the material height reaches the set position, the first infrared sensing photoelectric switch 8 controls the electromagnetic discharge valve 2 to close and stop discharging, and the second infrared sensing photoelectric switch 11 controls the hydraulic telescopic steel pipe 3 to continue to rise and return to its original position.

[0025] During the entire material discharge process, the bulk dust hood 4 at the bottom of the hydraulic telescopic steel pipe 3 is always maintained directly above the material, which can effectively suppress dust during the entire material discharge process and ensure accurate material discharge. The pulley group structure of the retraction and release line can automatically retract and release the power cord during the process of the photoelectric switch controlling the elevator movement, which will not affect the operation of the photoelectric switch. The two infrared sensing photoelectric switches are set at the bulk dust hood 4 at the bottom of the hydraulic telescopic steel pipe 3, which can effectively improve the monitoring accuracy of the two infrared sensing photoelectric switches on the material height, so that they can respond quickly and accurately.

[0026] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be determined that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the present invention, which should be regarded as belonging to the present invention and the scope of patent protection determined by the submitted claims.

Claims

1. A bulk material dust suppression and discharging device, comprising a material warehouse (10) and a bulk loader arranged at an outlet of the material warehouse (10), characterized in that: A hydraulic telescopic steel pipe (3) is provided at the bottom of the bulk loader; the hydraulic telescopic steel pipe (3) is connected to a hydraulic control motor, and a bulk dust collecting hood (4) is installed at the bottom of the hydraulic telescopic steel pipe (3); A first infrared sensing photoelectric switch (8) and a second infrared sensing photoelectric switch (11) are installed on the outer wall of the bulk dust collecting hood (4); the first infrared sensing photoelectric switch (8) and the second infrared sensing photoelectric switch (11) are both connected to an infrared sensing photoelectric switch cable (7); the infrared sensing photoelectric switch cable (7) is connected to a pulley block structure so that the infrared sensing photoelectric switch cable (7) is automatically retracted and extended; an electromagnetic discharge valve (2) is provided at the bottom of the material warehouse (10) outlet; the first infrared sensing photoelectric switch (8) is electrically connected to the electromagnetic discharge valve (2), and the second infrared sensing photoelectric switch (11) is electrically connected to a hydraulic control motor of a hydraulic telescopic steel pipe (3).

2. A bulk material dust suppression and discharging device according to claim 1, characterized in that: A fixing seat (9) is installed on one side outer wall of the bulk dust collecting hood (4); a first infrared sensing photoelectric switch (8) and a second infrared sensing photoelectric switch (11) are arranged on the fixing seat (9).

3. A bulk material dust suppression and discharging device according to claim 2, characterized in that: The first infrared induction photoelectric switch (8) and the second infrared induction photoelectric switch (11) are located at the same height.

4. A bulk material dust suppression and discharging device according to claim 1, characterized in that: The pulley block structure is arranged at the bottom of the material storage (10).

5. A bulk material dust suppression and discharging device according to claim 1 or 4, characterized in that: The pulley block structure comprises two fixed pulleys (5) and a movable pulley (6), wherein the two fixed pulleys (5) are rotatably connected to the outer bottom of the material storage (10), and the movable pulley (6) is connected to a heavy hammer structure; the infrared sensing photoelectric switch cable (7) is passed through one fixed pulley (5), the movable pulley (6) and the other fixed pulley (5) in sequence.

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