Automobile unloading dust removal system with lifting and contracting dust collection hood

Abstract

The utility model belongs to the field of unloading and dust removal, and discloses an automobile unloading and dust removal system with a lifting retractable dust hood, which comprises the retractable dust hood arranged on a roof above a material receiving groove, a dust removal air pipe connected with the dust hood, and a winding device for controlling the dust hood to lift, the dust collection cover comprises a fixed cover fixedly installed on a roof and a combined cover movably connected with the fixed cover, the combined cover is formed by movably connecting a plurality of movable covers end to end, the movable cover on the lower layer can contain the movable cover on the upper layer, and the movable cover on the uppermost layer can contain the fixed cover. Two crossed connecting rods are arranged at the bottom of the movable cover on the lowermost layer, the ends of the two connecting rods are connected with lifting ropes, and the lifting ropes are connected with a winding device through reversing pulleys. According to the utility model, unorganized raised dust generated by automobile unloading can be effectively collected, and the unloading operation of a train is not influenced when the automobile unloading and the train unloading are alternately carried out at the same unloading opening.

Description

Technical Field

[0001] The utility model belongs to the field of material unloading and dust removal, in particular to an automobile material unloading and dust removal system with a lifting and shrinking dust collecting hood. Background Art

[0002] The unloading area usually adopts the operation mode of truck unloading or train open-air unloading. The dust generated by truck unloading or train unloading is discharged into the air in an unorganized manner. According to the ultra-low emission requirements of the "Technical Guidelines for Ultra-low Emission Renovation of Iron and Steel Enterprises", the production equipment should be completely closed or semi-closed + rubber soft curtain sealing. Dust collection technology should be used first for fixed or continuously operating dust-producing points. The airtightness of the dust hood should be improved as much as possible without affecting production and safety.

[0003] For the same unloading port in the unloading area, there are cases where car unloading and train unloading are carried out alternately. While closing the factory building of the unloading line, it is necessary to consider collecting the large amount of dust generated by the two different operating methods to meet the requirements of ultra-low emissions. When unloading from a train, a long-arm excavator is used to collect the raw materials in the bucket transported by the train into the bottom receiving trough; when unloading from a car, the materials are directly poured from the bucket into the receiving trough. The location and amount of dust generated by the car in the two operating methods are quite different. When unloading from a train, dust removal is carried out by setting a low hood (dust removal hood at a low position) near the receiving trough and a high hood (dust removal hood at a high position) on the roof. However, the dust removal method for unloading from a train cannot completely collect the large amount of unorganized dust generated by unloading from a car.

[0004] Therefore, the present application provides a car unloading dust removal system with a lifting and retracting dust collecting hood to solve the problem of not affecting the excavator operation during train unloading and being able to collect a large amount of unorganized dust during car unloading. Utility Model Content

[0005] The utility model aims to solve the problem that the existing dust removal system for train unloading cannot completely collect a large amount of unorganized dust generated by automobile unloading. To this end, the utility model provides an automobile unloading dust removal system with a lifting and retracting dust collecting hood.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Provided is a car unloading dust removal system with a lifting and retractable dust hood, which is arranged in a closed factory building and comprises a retractable dust hood arranged on the roof above a receiving trough, a dust removal air duct connected to the dust hood, and a hoisting device for controlling the lifting and lowering of the dust hood; the dust hood comprises a fixed hood fixedly mounted on the roof and a combined hood movably connected to the fixed hood, the combined hood being formed by a plurality of movable hoods movably connected end to end, and the movable hood at the lower layer can accommodate the movable hood at the upper layer, and the movable hood at the uppermost layer can accommodate the fixed hood; two crossed connecting rods are arranged at the bottom of the movable hood at the lower layer, the ends of the two connecting rods are connected to suspension ropes, and the suspension ropes are connected to the hoisting device through a reversing pulley.

[0008] Preferably, each movable cover is fixed to the roof via a plurality of connecting chains.

[0009] Preferably, the top of the lower movable cover is provided with an inner turn-up edge, and the bottom of the upper movable cover or fixed cover is provided with an outer turn-up edge. The upper movable cover or fixed cover enters from the bottom of the lower movable cover and is limited by the outer turn-up edge and the inner turn-up edge.

[0010] Preferably, the movable cover is a thin-walled member in the shape of a quadrangular pyramid.

[0011] Preferably, an electric butterfly valve is provided on the dust removal air duct.

[0012] Preferably, the wind speed in the combined cover is greater than 1.5 m / s.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is designed with a dust collecting hood with lifting and retracting function, which can effectively collect the unorganized dust generated by automobile unloading and can be retracted when a train is unloading, so that the unloading operation of the train is not affected when automobile unloading and train unloading are performed alternately at the same unloading port. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 It is a structural schematic diagram of a vehicle unloading dust removal system with a lifting and retracting dust collecting hood provided by the utility model;

[0017] Figure 2 yes Figure 1 Bottom view of the retractable dust hood provided.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1—receiving trough, 2—dust collecting hood, 2.1—fixed hood, 2.2—movable hood, 2.2.1—inner flange, 2.2.2—outer flange, 3—dust removal air duct, 4—winch, 5—connecting rod, 6—hanging rope, 7—reversing pulley, 8—chain, 9—electric butterfly valve. DETAILED DESCRIPTION

[0020] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model; the terms "install", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0024] A receiving trough 1 is provided in a closed factory building. The side of the receiving trough away from the factory rolling door is a train unloading station, and the side of the receiving trough 1 close to the factory rolling door is a car unloading station. A low hood (not shown in the figure) is provided next to the receiving trough at the train unloading station, and a high hood (not shown in the figure) is provided on the roof of the factory building. Through the combined action of the low hood and the high hood, dust removal is achieved during train unloading. However, the train unloading dust removal cannot completely collect the large amount of unorganized dust generated by car unloading. Therefore, it is necessary to design a car unloading dust removal system with a lifting and retracting dust collecting hood.

[0025] Embodiment: The automobile unloading dust removal system with a lifting and retracting dust collecting hood provided in this embodiment is as shown in the attached Figure 1 As shown, it includes a retractable dust hood 2 arranged on the roof above the receiving trough 1, a dust removal air duct 3 connected to the dust hood 2, and a hoisting device 4 for controlling the lifting of the dust hood 2. The hoisting device 4 is used to control the telescopic state of the dust hood 2, so that the dust hood is unfolded when the car is unloading, and a large amount of unorganized dust generated by the car unloading is extracted; when the train is unloading, the dust hood is folded above the receiving trough, which does not affect the activity of the long arm excavator when the train is unloading, and the low hood and the high hood are used to remove dust when the train is unloading.

[0026] Preferably, as attached Figure 1 As shown, the dust hood 2 includes a fixed hood 2.1 fixedly mounted on the roof and a combined hood movably connected to the fixed hood 2.1, the combined hood is composed of a plurality of movable hoods 2.2 movably connected end to end, and the lower movable hood can accommodate the upper movable hood, and the uppermost movable hood 2.2 can accommodate the fixed hood 2.1; this design can achieve the contraction of the dust hood.

[0027] Preferably, the movable cover 2.2 is a thin-walled part in the shape of a quadrangular pyramid, and the movable connection between the movable covers 2.2 and between the movable cover 2.2 and the fixed cover 2.1 is as follows: an inner flange 2.2.1 is provided at the top of the lower movable cover, and an outer flange 2.2.2 is provided at the bottom of the upper movable cover 2.2 or the fixed cover, and the upper movable cover or the fixed cover enters from the bottom of the lower movable cover and is limited by the outer flange 2.2.2 and the inner flange 2.2.1.

[0028] Preferably, as attached Figure 2 As shown, two crossed connecting rods 5 are arranged at the bottom of the movable cover 2.2 at the lowest level, and the ends of the two connecting rods 5 are connected to the suspension rope 6, and the suspension rope 6 is connected to the hoisting device 4 through the reversing pulley 7. In this design, when the lowest movable cover rises under the action of the hoisting device, the upper movable cover is gradually retracted into the lowest movable cover by using the two connecting rods, so as to realize the retraction of the dust collecting cover by using the hoisting device.

[0029] Further, as attached Figure 1As shown, each movable cover 2.2 is fixed to the roof by a plurality of connecting chains 8. This design can improve the safety of the dust collecting cover.

[0030] Preferably, the dust removal air duct 3 is provided with an electric butterfly valve 9, through which the dust removal work of the dust collecting hood is controlled.

[0031] Preferably, the wind speed in the combined cover is greater than 1.5 m / s to ensure the dust removal effect.

[0032] During specific implementation: When the excavator is operating to unload materials from a train at the workstation, the dust hood is lifted and retracted to the bottom of the closed workshop by the winch device to avoid the operation of the long-arm excavator. The roller shutter door is closed during operation, and dust is removed through the low and high hoods when the train is unloading. When the car is unloading at the workstation, the roller shutter door of the closed workshop is raised, and the lifting and retracting dust hood is lowered to a position close to the car bucket by the winch device, and the electric butterfly valve is opened for dust extraction. This application adopts different dust removal methods for different working conditions to achieve the collection of unorganized dust.

[0033] It is worth noting that the dust removal for train unloading and car unloading is independently controlled and can be switched through an electric butterfly valve to reduce the total air volume of the system; the winch device is fixed to the side column of the factory building, and a maintenance platform is set up.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A car unloading dust removal system with a lifting and retracting dust collecting hood, which is installed in a closed factory building; it is characterized by: It includes a retractable dust collecting hood arranged on the roof above the receiving trough, a dust removal air duct connected to the dust collecting hood, and a hoisting device for controlling the lifting of the dust collecting hood; The dust collecting hood comprises a fixed hood fixedly mounted on the roof and a combined hood movably connected to the fixed hood, wherein the combined hood is formed by a plurality of movable hoods movably connected end to end, and the movable hoods at the lower layer can accommodate the movable hoods at the upper layer, and the movable hoods at the uppermost layer can accommodate the fixed hood; Two crossed connecting rods are arranged at the bottom of the movable cover at the lowest layer, and the ends of the two connecting rods are connected with suspension ropes, and the suspension ropes are connected with the hoisting device through a reversing pulley.

2. The automobile unloading dust removal system with a lifting and retracting dust collecting hood according to claim 1 is characterized in that: Each movable cover is fixed to the roof by multiple connecting chains.

3. The automobile unloading dust removal system with a lifting and retracting dust collecting hood according to claim 2 is characterized in that: The top of the lower movable cover is provided with an inner turn-down edge, and the bottom of the upper movable cover or fixed cover is provided with an outer turn-down edge. The upper movable cover or fixed cover enters from the bottom of the lower movable cover and is limited by the outer turn-down edge and the inner turn-down edge.

4. The automobile unloading dust removal system with a lifting and retracting dust collecting hood according to claim 3 is characterized in that: The movable cover is a thin-walled part in the shape of a quadrangular pyramid.

5. The automobile unloading dust removal system with a lifting and retracting dust collecting hood according to any one of claims 1 to 4, characterized in that: An electric butterfly valve is arranged on the dust removal air duct.

6. The automobile unloading dust removal system with a lifting and retracting dust collecting hood according to any one of claims 1 to 4, characterized in that: The wind speed in the combined cover is greater than 1.5 m / s.

Images