Dust suppression device for discharging funnel of plow discharger

Abstract

The utility model relates to a dust suppression device for a discharging hopper of a plow discharger. The dust suppression device comprises a dust suppression baffle, a balancing weight mounting bracket and a plummer block mechanism, according to the safe and environment-friendly device, the inlet of the raw coal bunker can be completely sealed after feeding is stopped, and dust is prevented from overflowing. After being unloaded by the plow discharger, the material opens the dust suppression baffle by virtue of self gravity and enters the raw coal bunker; when the raw coal bunker stops feeding, the dust suppression baffle is closed by means of the weight of the balancing weight, the gap between the dust suppression baffle and the discharging hopper is completely sealed through the dust suppression seal, and dust in the raw coal bunker is thoroughly suppressed.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyors, in particular to a dust suppression device for a discharging funnel of a plough type discharging device. Background Art

[0002] The dust suppression device for the discharge funnel of the plow type discharger is a dust suppression device developed based on the field of belt conveyors. It is a dust suppression device that prevents dust from overflowing after the plow type discharger discharges into the raw coal bunker. Belt conveyors are important coal transportation equipment in coal-fired power plants. In order to avoid environmental pollution caused by coal dust, belt conveyors are installed in coal conveying trestle bridges. Materials (coal) are transported to the top of the raw coal bunker through belt conveyors at all levels. Plow type dischargers are arranged at the entrance of each raw coal bunker (two sets of plow type dischargers are designed for each raw coal bunker), which are responsible for unloading the materials above the running belt conveyor into the predetermined raw coal bunker. The coal unloaded from the top of the belt conveyor by the plow type discharger enters the raw coal bunker through the discharge funnel. Due to the high vertical height of the raw coal bunker, coal dust is generated instantly after the coal enters the raw coal bunker. The coal dust in the raw coal bunker overflows from the discharge funnel of another plow type discharger, causing the dust concentration in the on-site environment to exceed the standard. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and proposes a dust suppression device for a discharging hopper of a plough-type unloader, which can solve the problem of major hidden dangers caused by excessive dust concentration in the coal conveying trestle above the raw coal bin.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] A dust suppression device for a discharging funnel of a plow type discharger, comprising two discharging funnels of the plow type discharger installed above a raw coal bin, comprising a dust suppression baffle, a counterweight mounting bracket and a seat bearing, wherein the seat bearing is rotatably connected to the side wall of the discharging funnel of the plow type discharger, a dust suppression baffle is arranged inside the discharging funnel of the plow type discharger, the dust suppression baffle is used to limit dust suppression in the raw coal bin, one end of the dust suppression baffle is connected to the seat bearing, a counterweight bracket is arranged outside the discharging funnel of the plow type discharger, one end of the counterweight bracket is connected to the seat bearing, and the counterweight bracket is used to control the closing of the dust suppression baffle.

[0006] Moreover, the counterweight is installed at the other end of the counterweight mounting bracket.

[0007] Moreover, the contact portion of the dust suppression baffle with the side wall of the discharge hopper of the plough type discharger is wrapped by a dust suppression seal and fixed to the dust suppression baffle by countersunk bolts for further dust prevention.

[0008] Moreover, a dust suppression baffle limiting stop iron is installed on the side wall of the discharging funnel of the plough type discharger away from the seat bearing, which is used to limit the dust suppression baffle from being over-positioned.

[0009] Moreover, the counterweight bracket is installed on the seat bearing through a counterweight bracket fixing sleeve.

[0010] Moreover, a side wall of the discharging hopper of the plough-type discharger is provided with an adjusting device, and the adjusting device is installed below the dust suppression device.

[0011] Moreover, the adjusting device includes a slide rail, a slider, a bolt and a tension spring, wherein the slide rail is vertically arranged on the side wall of the unloading funnel of the plow-type discharger, the slider is installed on the slide rail, and the bolt is installed on the slider to fix the position of the slider on the slide rail, one end of the tension spring is connected to the slider, and the other end of the tension spring is connected to the counterweight mounting bracket.

[0012] The advantages and positive effects of the utility model are:

[0013] The utility model constructs a dust suppression device for the discharge funnel of a plow-type discharger through a dust suppression baffle, a counterweight mounting bracket and a seat bearing. The utility model can completely seal the entrance of the raw coal bunker after the feeding is stopped, thereby preventing dust from overflowing. After the plow-type discharger discharges the material, the material opens the dust suppression baffle by its own gravity and enters the raw coal bunker; when the raw coal bunker stops feeding, the dust suppression baffle is closed by the weight of the counterweight, and the gap between the dust suppression baffle and the discharge funnel is completely sealed by the dust suppression seal, so that the dust inside the raw coal bunker is completely suppressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a top view of the utility model.

[0016] 1-dust suppression baffle, 2-counterweight, 3-counterweight mounting bracket, 4-bearing with seat, 5-unloading funnel, 6-dust suppression baffle limit stop iron,

[0017] 7-dust suppression seal, 8-countersunk bolt, 9-counterweight bracket fixing sleeve, 10-slide rail, 11-slider, 12-bolt, 13-tension spring. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below with reference to the accompanying drawings.

[0019] A dust suppression device for a discharge hopper of a plow type discharger, such as Figure 1As shown, two plough discharger discharge funnels 5 are installed above the raw coal bin, the discharge port of the discharge funnel is installed at the entrance of the raw coal bin, and the feed port of the discharge funnel is installed on both sides of the belt conveyor. After the materials are discharged by the plough discharger, the materials enter the raw coal bin through the discharge funnel. The dust suppression device includes a dust suppression baffle 1, a counterweight block mounting bracket 3 and a seat bearing 4, wherein the seat bearing is rotatably connected to the side wall of the plough discharger discharge funnel, a dust suppression baffle is arranged inside the plough discharger discharge funnel, and the dust suppression baffle is used to limit the dust suppression of the raw coal bin, and one end of the dust suppression baffle is connected to the seat bearing, and a counterweight bracket is arranged outside the plough discharger discharge funnel, and one end of the counterweight bracket is connected to the seat bearing, and the counterweight bracket is used to control the closing of the dust suppression baffle.

[0020] Among them, the seat bearing of the utility model is a component installed on both sides of the discharge funnel to fix the dust suppression baffle. The seat bearing is selected to ensure the flexible operation of the dust suppression baffle and avoid the dust suppression baffle from being stuck and causing the dust suppression baffle to not be closed in place. The dust suppression baffle is made of 16Mn material and 12mm thick wear-resistant plate. In order to reduce long-term material erosion and wear and extend the service life of the dust suppression baffle, wear-resistant plate is specially selected.

[0021] The counterweight block 2 is made of Q235 material and is cut from a 30mm thick plate. It is fixedly installed at the other end of the counterweight block mounting bracket. On-site balancing measurement is required to adjust the weight of the counterweight block to ensure that the dust suppression baffle is completely closed to prevent coal dust from overflowing through the gaps in the dust suppression baffle.

[0022] like Figure 2 As shown in the figure, the contact part between the dust suppression baffle and the side wall of the discharge funnel of the plow discharger is wrapped by a dust suppression seal 7 and fixed to the dust suppression baffle by a countersunk bolt 8 for further dust prevention. The dust suppression seal is made of EP200 polyurethane conveyor belt and is evenly distributed on the edge of the dust suppression baffle. The EP200 polyurethane conveyor belt is made into 80mm width and the same length as the dust suppression baffle, and is evenly distributed along the edge of the dust suppression baffle. The mounting holes are fixed with countersunk bolts (M12×80) in order to completely seal the unused discharge funnel.

[0023] A dust suppression baffle limit stop 6 is installed on the side wall of the unloading funnel of the plow type unloader away from the bearing seat. The dust suppression baffle limit stop is to control the over-position phenomenon when the dust suppression baffle is closed, and the limited forced stop can avoid the dust overflow caused by gaps due to over-closing of the dust suppression baffle.

[0024] The counterweight bracket is mounted on the seat bearing through the counterweight bracket fixing sleeve 9. An adjustment device is provided on the side wall of the discharge hopper of the plow type discharger, and the adjustment device is installed below the dust suppression device. The adjustment device includes a slide rail 10, a slider 11, a bolt 12 and a tension spring 13, wherein the slide rail is vertically arranged on the side wall of the discharge hopper of the plow type discharger, the slider is mounted on the slide rail, the bolt is mounted on the slider to fix the position of the slider on the slide rail, one end of the tension spring is connected to the slider, and the other end of the tension spring is connected to the counterweight block mounting bracket. The tension of the tension spring on the counterweight mounting bracket is adjusted by adjusting the position of the slider on the slide rail. The function of the adjusting device is to reduce the impact of coal on the dust suppression device. When the coal falls on the dust suppression baffle, the gravity and acceleration of the coal will cause the dust suppression device to rotate downward. At the same time, the existence of the tension spring will slow down the rotation speed of the dust suppression device to protect the dust suppression device. At the same time, the tension spring can limit the rotation speed of the dust suppression baffle to prevent the dust suppression baffle from colliding with the side wall of the unloading funnel of the plow type discharger at a faster speed, thereby causing damage to the dust suppression baffle. At the same time, the design of the slide rail and the slider enables the dust suppression device to adjust the tension of the tension spring according to the size of the coal. If the coal is smaller, the tension of the tension spring will be reduced. If the coal is larger, the tension of the tension spring will be increased.

[0025] The working process of the utility model is:

[0026] The entrance of the unloading funnel is the unloading port of the plough type unloader, and the outlet of the unloading funnel is the feeding port of the raw coal bin. When the material enters the unloading funnel after being discharged by the plough type unloader, the material relies on its own gravity to overcome the gravity of the dust suppression baffle counterweight block, opens the dust suppression baffle and smoothly enters the raw coal bin. When the raw coal bin stops feeding, the dust suppression baffle relies on the gravity of the counterweight block, as well as the action of the dust suppression baffle limit stop iron and dust suppression seal to completely close the unloading funnel outlet to prevent dust from overflowing from the raw coal bin.

[0027] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation manner. Any other implementation manner derived by those skilled in the art based on the technical solution of the present invention also falls within the scope of protection of the present invention.

Claims

1. A dust suppression device for a discharge hopper of a plow-type discharger, characterized in that: Two plough type discharger unloading funnels installed above the raw coal bin include a dust suppression baffle, a counterweight mounting bracket and a seat bearing, wherein the seat bearing is rotatably connected to the side wall of the plough type discharger unloading funnel, a dust suppression baffle is arranged inside the plough type discharger unloading funnel, the dust suppression baffle is used to limit the dust suppression of the raw coal bin, one end of the dust suppression baffle is connected to the seat bearing, a counterweight bracket is arranged outside the plough type discharger unloading funnel, one end of the counterweight bracket is connected to the seat bearing, and the counterweight bracket is used to control the closing of the dust suppression baffle.

2. A dust suppression device for a discharge hopper of a plow-type discharger according to claim 1, characterized in that: The counterweight is installed at the other end of the counterweight mounting bracket.

3. A dust suppression device for a discharge hopper of a plow-type discharger according to claim 1, characterized in that: The contact portion of the dust suppression baffle with the side wall of the discharge hopper of the plough type discharger is wrapped by a dust suppression seal and is fixed to the dust suppression baffle by countersunk bolts for further dust prevention.

4. A dust suppression device for a discharge hopper of a plow-type discharger according to claim 1, characterized in that: A dust suppression baffle limiting stop iron is installed on the side wall of the discharging funnel of the plough type discharger away from the seat bearing, which is used to limit the dust suppression baffle from being over-positioned.

5. The dust suppression device for the discharge hopper of a plough-type discharger according to claim 1, characterized in that: The counterweight bracket is installed on the seat bearing through a counterweight bracket fixing sleeve.

6. A dust suppression device for a discharge hopper of a plow-type discharger according to claim 1, characterized in that: The side wall of the discharging funnel of the plough type discharger is provided with an adjusting device, and the adjusting device is installed below the dust suppression device.

7. A dust suppression device for a discharge hopper of a plough-type discharger according to claim 6, characterized in that: The adjusting device includes a slide rail, a slider, a bolt and a tension spring, wherein the slide rail is vertically arranged on the side wall of the discharging funnel of the plow type discharger, the slider is installed on the slide rail, the bolt is installed on the slider to fix the position of the slider on the slide rail, one end of the tension spring is connected to the slider, and the other end of the tension spring is connected to the counterweight mounting bracket.

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