Dust removal valve of discharging car

Abstract

The dust removal valve comprises a dust removal valve body, a dust removal air pipe and an automatic reset mechanism, one end of the dust removal air pipe is connected with the discharging car and moves synchronously with the discharging car, the other end of the dust removal air pipe is connected with the dust removal valve body, the dust removal valve body is connected with the automatic reset mechanism, and the dust removal valve body comprises a valve air pipe and a valve turning plate. The valve turning plate is arranged in the valve air pipe and controlled by an automatic reset mechanism to reset. The dust removal air pipe and the dust removal valve body can be tightly combined and can also be automatically separated, after combination, the valve turning plate is driven to turn over, the dust removal valve body is opened, after separation, the valve turning plate can be automatically reset and closed under the action of the automatic reset mechanism, the air leakage rate of the dust removal system of the discharging car is greatly reduced, and the dust removal efficiency is also greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unloading equipment on a ore coke trough in the metallurgical industry, in particular to a dust removal valve for an unloading vehicle. Background Art

[0002] In metallurgical plants, raw materials such as ore and coke need to be transported to the ore coke trough by belt conveyors for storage. On the ore coke trough, unloading trucks are used to unload the ore, coke and other raw materials into specific silos. During the unloading process, a lot of dust is generated on the ore coke trough due to the large height difference between the conveyor belt conveyor and the silo, poor sealing, and pressure difference in the silo.

[0003] There are two common dust removal methods for unloading trucks: one is to use an unloading truck and an external mobile ventilation slot to remove dust, and the other is to equip the unloading truck with an independent car-type dust collector. Since the cost of an independent car-type dust collector for unloading trucks is relatively high, the design of unloading trucks equipped with mobile ventilation slots is still the mainstream unloading dust removal method for coke troughs.

[0004] The principle of the dust removal method of the unloading car and the mobile ventilation slot is: the ventilation duct of the dust collector is connected to one end of the ventilation slot, a mobile trolley is set on the ventilation slot, and the mobile trolley and the ventilation slot are sealed with tape. Under the action of the induced draft fan of the dust removal system, the smoke and dust generated during unloading can be sucked away. However, because the mobile ventilation slot on the coke trough is generally about 100 meters, as the operation time of the equipment on the trough increases, the dust removal duct of the unloading car is deformed, and the tape of the mobile ventilation slot is deformed, aged, and deviated frequently, resulting in multiple air leaks in the mobile ventilation slot, and the dust removal effect is greatly reduced. Utility Model Content

[0005] In order to overcome the problems of air leakage and reduced dust removal effect of the mobile ventilation slots in the prior art, the utility model provides a dust removal valve for a discharge truck.

[0006] In order to achieve the above-mentioned purpose, the utility model designs a dust removal valve for an unloading truck, comprising a dust removal valve body, a dust removal air duct, and an automatic reset mechanism. One end of the dust removal air duct is connected to the unloading truck and moves synchronously with the unloading truck, and the other end is connected to the dust removal valve body. The dust removal valve body is connected to the automatic reset mechanism. The dust removal valve body comprises a valve air duct and a valve flap. The valve flap is arranged inside the valve air duct and is reset by the automatic reset mechanism.

[0007] Preferably, a sealing member is provided at the portion where the dust removal valve body is connected to the dust removal air duct.

[0008] Preferably, the dust removal valve body also includes a rotating shaft, a bearing seat, and connecting bolts. The rotating shaft is connected to the bearing seat, the bearing seat is fixedly connected to the valve air duct, the valve flap is connected to the rotating shaft via connecting bolts, and the end of the rotating shaft is connected to an automatic reset mechanism.

[0009] Preferably, the automatic resetting mechanism comprises a rocker arm, a counterweight and a nut, the rocker arm is connected to the rotating shaft, the counterweight is connected to the lower part of the rocker arm, and the nut is arranged on the rocker arm below the counterweight.

[0010] Preferably, the dust removal air duct includes an air duct body, a touch plate, reinforcing ribs, and a connecting flange. The touch plate is fixed to the lower part of the air duct body through the reinforcing ribs, and the connecting flange is connected to the end of the air duct body.

[0011] The utility model has the following beneficial effects:

[0012] The dust removal air duct and the dust removal valve body can be tightly combined or automatically separated. After combination, the valve flap is driven to flip over to open the dust removal valve body. After separation, the valve flap can be automatically reset and closed under the action of the automatic reset mechanism, which greatly reduces the air leakage rate of the dust removal system of the unloading truck and greatly improves the dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of the dust removal valve of the unloading vehicle.

[0014] Figure 2 It is a structural schematic diagram of the dust removal valve body of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the dust removal air duct of the utility model.

[0016] In the figure, the dust removal valve body 1, the dust removal air duct 2, the automatic reset mechanism 3, the seal 4, the valve air duct 11, the valve flap 12, the rotating shaft 13, the bearing seat 14, the connecting bolt 15, the air duct body 21, the touch plate 22, the reinforcing rib 23, the connecting flange 24, the rocker arm 31, the counterweight 32, and the nut 33. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example:

[0019] See also Figure 1-3A dust removal valve for an unloading truck comprises a dust removal valve body 1, a dust removal air duct 2, and an automatic reset mechanism 3. One end of the dust removal air duct 2 is connected to the unloading truck and moves synchronously with the unloading truck, and the other end is connected to the dust removal valve body 1. The dust removal valve body 1 is connected to the automatic reset mechanism 3. The dust removal valve body 1 comprises a valve air duct 11 and a valve flap 12. The valve flap 12 is arranged inside the valve air duct 11 and is reset by the automatic reset mechanism 3.

[0020] As a preferred implementation of this embodiment, a sealing member 4 is provided at the portion where the dust removal valve body 1 is connected to the dust removal air duct 2. The sealing member 4 of this embodiment is a sealing rubber plate.

[0021] As a preferred implementation of this embodiment, the dust removal valve body 1 also includes a rotating shaft 13, a bearing seat 14, and a connecting bolt 15. The rotating shaft 13 is connected to the bearing seat 14, and the bearing seat 14 is fixedly connected to the valve air duct 11. It can be seen from the figure that there are two bearing seats 14, which are symmetrically arranged on both sides of the vertical pipe section of the valve air duct 11. The valve flap 12 is connected to the rotating shaft 13 by a connecting bolt 15, and the end of the rotating shaft 13 is connected to the automatic reset mechanism 3.

[0022] As a preferred implementation manner of this embodiment, the automatic reset mechanism 3 includes a rocker arm 31, a counterweight 32 and a nut 33, the rocker arm 31 is connected to the rotating shaft 13, the counterweight 32 is connected to the lower part of the rocker arm 31, and the nut 33 is arranged on the rocker arm 31 below the counterweight 32.

[0023] As a preferred implementation mode of this embodiment, the dust removal air duct 2 includes an air duct body 21, a touch plate 22, a reinforcing rib 23, and a connecting flange 24. The touch plate 22 is fixed to the lower part of the air duct body 21 through the reinforcing rib 23, and the connecting flange 24 is connected to the end of the air duct body 21. The connecting flange 24 is used to connect to the unloading truck.

[0024] The dust removal air duct 2 is positioned and operated according to the program of the positioning device (proximity switch, encoder, Gray busbar, etc.) of the unloading vehicle. When the positioning device receives the signal, the unloading vehicle stops moving and starts unloading. At this time, the touch plate 22 of the dust removal air duct 2 touches the rocker rod 31 of the automatic reset mechanism, and the gap between the dust removal air duct 2 and the dust removal valve body 1 is sealed by the seal 4. The valve flap 12 opens, and the dust enters the dust removal main pipe through the dust removal pipeline of the unloading vehicle, the dust removal air duct 2, and the dust removal valve body 1 and is removed by the dust removal equipment.

[0025] In this embodiment, when the unloading truck PLC receives a full material signal, the unloading truck stops unloading and moves, and the dust removal air duct 2 moves with the unloading truck. The dust removal air duct 2 is automatically separated from the dust removal valve body 1, and the touch plate 22 is separated from the automatic reset mechanism 3. The automatic reset mechanism 3 automatically resets, driving the valve flap 12 to reset, and the dust removal valve body 1 is closed.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dust removal valve for a discharge truck, characterized in that: It includes a dust removal valve body, a dust removal air duct, and an automatic reset mechanism. One end of the dust removal air duct is connected to the unloading vehicle and moves synchronously with the unloading vehicle, and the other end is connected to the dust removal valve body. The dust removal valve body is connected to the automatic reset mechanism. The dust removal valve body includes a valve air duct and a valve flap. The valve flap is arranged inside the valve air duct and is reset by the automatic reset mechanism.

2. The dust removal valve for a discharge vehicle according to claim 1, characterized in that: A sealing member is provided at the portion where the dust removal valve body is connected to the dust removal air duct.

3. The dust removal valve for a discharge vehicle according to claim 1 is characterized in that: The dust removal valve body also includes a rotating shaft, a bearing seat, and connecting bolts. The rotating shaft is connected to the bearing seat, and the bearing seat is fixedly connected to the valve air duct. The valve flap is connected to the rotating shaft through the connecting bolts, and the end of the rotating shaft is connected to the automatic reset mechanism.

4. The dust removal valve for a discharge truck according to claim 3 is characterized in that: The automatic reset mechanism comprises a swing rod, a counterweight and a nut. The swing rod is connected to the rotating shaft, the counterweight is connected to the lower part of the swing rod, and the nut is arranged on the swing rod below the counterweight.

5. The dust removal valve for a discharge vehicle according to claim 3, characterized in that: The dust removal air duct comprises an air duct body, a touch plate, reinforcing ribs, and a connecting flange. The touch plate is fixed to the lower part of the air duct body through the reinforcing ribs, and the connecting flange is connected to the end of the air duct body.

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