A two-way single-pass suction unit for sweeping the residual coal after the open car is unloaded

Abstract

A kind of two-way single suction unit for open wagon unloading after coal cleaning device, including two suction nozzles, discharge pipe and reversing device;Two suction nozzles are horn-shaped structure, two suction nozzles are mirror image symmetrically arranged in the bottom of discharge pipe, the feed inlet of two suction nozzles is inclined downward and arranged, the discharge outlet of two suction nozzles is connected as a whole structure, the discharge outlet of two suction nozzles is communicated with the feed inlet of discharge pipe, the discharge outlet of discharge pipe is communicated with the air inlet of air extractor, reversing device includes baffle and drive mechanism, baffle is correspondingly arranged with the discharge outlet of suction nozzle, the outer edge of baffle is sealingly cooperated with the discharge outlet of suction nozzle, drive mechanism is fixedly arranged on residual coal cleaning device, the power output end of drive mechanism is transmissionally cooperated with baffle.The design not only can shovel coal under the carriage by suction nozzle, effectively improve coal cleaning effect, but also can reduce the working steps of residual coal cleaning by symmetrically arranged suction nozzle, effectively improve work efficiency.

Description

Technical Field

[0001] This utility model relates to a suction unit, and more particularly to a bidirectional single-pass suction unit for a coal cleaning device after unloading from an open wagon. Background Technology

[0002] Currently, coal transportation via open wagons or containers is the industry's primary mode of transport. Upon arrival at the destination, coal is typically unloaded using tippers. However, due to limitations in the unloading principle of existing tippers, a significant amount of coal remains on the edges and bottom of the wagons. This coal adheres to the wagons and is difficult to remove. Currently, the coal is often swept off the open wagons or containers after unloading using methods such as manual cleaning, air blowing, water flushing, or residual coal sweeping devices. The coal is then removed from the wagons manually or using bulk material suction devices.

[0003] Existing bulk material collection devices typically include a suction nozzle, a blower, a filter, and a hopper. The blower creates negative pressure in the suction nozzle, drawing coal into it. The coal then passes through the air duct into the filter, which filters out coal chunks and powder before feeding it into the hopper. Manual cleaning, on the other hand, requires personnel to enter the truck bed and use shovels and brooms to remove the coal from the side door of the truck bed.

[0004] Although both of these cleaning methods can effectively remove residual coal from the car, they still have the following drawbacks:

[0005] 1. Bulk material suction devices that rely solely on negative pressure are unable to suck up large coal chunks.

[0006] 2. The cleaning of residual coal often requires multiple back-and-forth movements within the car body. Each time, the bulk material suction device needs to be turned around, which increases the number of steps involved in cleaning residual coal and reduces work efficiency.

[0007] 3. Manual cleaning is not only labor-intensive, but also has a poor working environment. Because containers are relatively sealed, cleaning inside containers may also cause safety accidents due to the harsh working environment.

[0008] The information disclosed in this background section is intended only to enhance understanding of the overall background of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of existing technologies, such as the inability to pick up large coal blocks, low work efficiency, and high safety risks. It provides a bidirectional single-pass suction unit for cleaning up residual coal after unloading from open wagons, which can pick up large coal blocks, has high work efficiency, and low safety risks.

[0010] To achieve the above objectives, the technical solution of this utility model is:

[0011] A bidirectional single-pass suction unit for a coal cleaning device after unloading from an open wagon, the suction unit comprising: two suction nozzles and a discharge pipe;

[0012] Both suction nozzles are funnel-shaped structures and are mirror-symmetrically arranged at the bottom of the discharge pipe. The inlets of both suction nozzles are inclined downwards, and the outlets of both suction nozzles are connected to each other as a single structure. The outlets of both suction nozzles are connected to the inlets of the discharge pipe, and the outlet of the discharge pipe is connected to the air inlet of the exhaust fan.

[0013] The suction unit also includes a reversing device, which includes a baffle and a driving mechanism. The baffle is correspondingly arranged with the discharge port of the suction nozzle, and the outer edge of the baffle is sealed to the discharge port of the suction nozzle. The driving mechanism is fixedly mounted on the residual coal cleaning device, and the power output end of the driving mechanism is driven by the baffle.

[0014] The tops of the two suction nozzles are fixedly connected to the discharge pipe, the bottoms of the two suction nozzles are connected by a connecting plate, the sidewalls of the two suction nozzles are an integral structure, a rotating shaft is fixedly installed at the bottom of the baffle, the two ends of the rotating shaft pass through the discharge pipe and are limited to the discharge pipe, and the baffle is rotatably engaged with the sidewall of the discharge pipe through the rotating shaft installed on it.

[0015] The reversing device also includes a rocker arm, and the driving mechanism is an electric push rod. One end of the rocker arm is fixedly connected to the end of the rotating shaft, and the push rod of the driving mechanism is hinged to the other end of the rocker arm.

[0016] The angle between the two suction nozzles and the ground is 30 to 60 degrees.

[0017] The feed inlet of the nozzle is elongated, with the length of the feed inlet being greater than the length of the discharge outlet, and the width of the feed inlet being less than the width of the discharge outlet.

[0018] A rubber baffle is fixedly installed on the feed inlet of the suction nozzle. The rubber baffle is located on the side of the feed inlet of the suction nozzle near the reversing device. The top of the rubber baffle is fixedly connected to the outer edge of the feed inlet of the suction nozzle, and the bottom of the rubber baffle is in contact with the bottom surface of the carriage.

[0019] The top of the discharge pipe is provided with a connecting flange, which is fixedly connected to the air inlet duct of the exhaust fan.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. In the bidirectional single-pass suction unit of the open wagon coal cleaning device after unloading, there is a certain angle between the suction nozzle and the ground, allowing the nozzle to scoop up coal from the bottom of the wagon as it moves. Therefore, this design can effectively improve the coal cleaning effect by scooping up coal from the bottom of the wagon.

[0022] 2. This utility model discloses a bidirectional single-pass suction unit for a coal cleaning device after unloading from an open wagon. The unit includes two suction nozzles symmetrically arranged on both sides of the collection hopper. During use, the two nozzles are positioned near the front and rear sides of the wagon, respectively. When the coal cleaning device reciprocates to clean the wagon, the nozzles do not need to be turned around, reducing the number of steps. Therefore, this design reduces the number of steps required for coal cleaning through symmetrically arranged suction nozzles, effectively improving work efficiency.

[0023] 3. The bidirectional single-pass suction unit of this utility model for cleaning residual coal after unloading from open wagons also includes a reversing device. A baffle is sealed to the outlet of each of the two suction nozzles. By controlling the movement of the baffle through a drive mechanism, one of the suction nozzles can be sealed, thereby increasing the air pressure at the other nozzle and improving the efficiency of residual coal cleaning. Therefore, this design can effectively improve the efficiency of residual coal cleaning by sealing one suction nozzle with the reversing device and increasing the air pressure at the other nozzle.

[0024] 4. In the bidirectional single-pass suction unit of the open wagon unloading residual coal cleaning device of this utility model, a rubber baffle is fixedly installed on the outer edge of the suction nozzle inlet near the reversing device. The rubber baffle can scoop up coal and block the collection of coal that is not sucked up in time, thus extending the time that the coal is subjected to negative pressure wind force. Therefore, this design can effectively improve the coal collection rate by using the rubber baffle to scoop up coal and block the collection of coal that is not sucked up in time. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a side view of the present invention.

[0027] Figure 3 yes Figure 1 Top view of the middle baffle.

[0028] Figure 4 This is a schematic diagram of the nozzle structure in Example 2.

[0029] In the diagram: 1. Suction nozzle, 11. Connecting plate, 12. Rubber baffle, 2. Discharge pipe, 21. Connecting flange, 3. Reversing device, 31. Baffle, 32. Drive mechanism, 33. Rotating shaft, 34. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] See Figures 1 to 4 A bidirectional single-pass suction unit for a coal cleaning device after unloading from an open wagon, the suction unit comprising: two suction nozzles 1 and a discharge pipe 2;

[0032] Both suction nozzles 1 are funnel-shaped structures. The two suction nozzles 1 are mirror-symmetrically arranged at the bottom of the discharge pipe 2. The inlets of both suction nozzles 1 are inclined downwards. The outlets of the two suction nozzles 1 are connected to each other as a single structure. The outlets of both suction nozzles 1 are connected to the inlets of the discharge pipe 2. The outlet of the discharge pipe 2 is connected to the air inlet of the exhaust fan.

[0033] The suction unit also includes a reversing device 3, which includes a baffle 31 and a driving mechanism 32. The baffle 31 is correspondingly arranged with the discharge port of the suction nozzle 1. The outer edge of the baffle 31 is sealed to the discharge port of the suction nozzle 1. The driving mechanism 32 is fixedly arranged on the residual coal cleaning device. The power output end of the driving mechanism 32 is in transmission cooperation with the baffle 31.

[0034] The tops of the two suction nozzles 1 are fixedly connected to the discharge pipe 2, and the bottoms of the two suction nozzles 1 are connected by a connecting plate 11. The sidewalls of the two suction nozzles 1 are integral structures. A rotating shaft 33 is fixedly installed at the bottom of the baffle 31. The two ends of the rotating shaft 33 pass through the discharge pipe 2 and are limited to fit with the discharge pipe 2. The baffle 31 is rotatably fitted with the sidewall of the discharge pipe 2 by the rotating shaft 33 installed on it.

[0035] The reversing device 3 also includes a rocker arm 34, and the driving mechanism 32 is an electric push rod. One end of the rocker arm 34 is fixedly connected to the end of the rotating shaft 33, and the push rod of the driving mechanism 32 is hinged to the other end of the rocker arm 34.

[0036] The angle between the two suction nozzles 1 and the ground is 30 degrees to 60 degrees.

[0037] The feed inlet of the suction nozzle 1 is elongated, with the length of the feed inlet being greater than the length of the discharge outlet, and the width of the feed inlet being less than the width of the discharge outlet.

[0038] A rubber baffle 12 is fixedly installed on the feed inlet of the suction nozzle 1. The rubber baffle 12 is located on the side of the feed inlet of the suction nozzle 1 near the reversing device 3. The top of the rubber baffle 12 is fixedly connected to the outer edge of the feed inlet of the suction nozzle 1, and the bottom of the rubber baffle 12 is in contact with the bottom surface of the carriage.

[0039] The top of the discharge pipe 2 is provided with a connecting flange 21, which is fixedly connected to the air inlet duct of the exhaust fan.

[0040] The principle of this utility model is explained as follows:

[0041] In this design, the gap between the suction nozzle 1 and the bottom plate of the car body is fixed. According to the actual survey results, the coal blocks in the car body after the tipper unloads are basically less than 10cm high. After leaving a certain margin, the minimum distance between the suction nozzle 1 and the bottom plate of the car body is set to 10cm. The maximum distance can be controlled by improving the frame structure connecting the suction nozzle 1 according to the actual situation. Example

[0042] A bidirectional single-channel suction unit for cleaning residual coal after unloading from open wagons, the suction unit includes: two suction nozzles 1 and a discharge pipe 2; both suction nozzles 1 are horn-shaped structures, and are mirror-symmetrically arranged at the bottom of the discharge pipe 2. The inlets of both suction nozzles 1 are inclined downwards, and the outlets of both suction nozzles 1 are connected to each other as a single structure. The outlets of both suction nozzles 1 are connected to the inlets of the discharge pipe 2, and the outlet of the discharge pipe 2 is connected to the air inlet of the exhaust fan; the suction unit also includes a reversing device 3, which includes a baffle 31 and a drive mechanism 32. The baffle 31 is correspondingly arranged with the outlet of the suction nozzle 1, and the outer edge of the baffle 31 is sealed to the outlet of the suction nozzle 1. The drive mechanism 32 is fixedly mounted on the residual coal cleaning device, and the power output end of the drive mechanism 32 is driven by the baffle 31. The top of the discharge port of the suction nozzle 1 is fixedly connected to the discharge pipe 2. The bottoms of the discharge ports of the two suction nozzles 1 are connected by a connecting plate 11. The side walls of the two suction nozzles 1 are an integral structure. A rotating shaft 33 is fixedly installed at the bottom of the baffle 31. The two ends of the rotating shaft 33 pass through the discharge pipe 2 and are limited to the discharge pipe 2. The baffle 31 is rotatably engaged with the side wall of the discharge pipe 2 through the rotating shaft 33 installed on it. The reversing device 3 also includes a rocker arm 34. The driving mechanism 32 is an electric push rod. One end of the rocker arm 34 is fixedly connected to the end of the rotating shaft 33. The push rod of the driving mechanism 32 is hinged to the other end of the rocker arm 34. The angle between the two suction nozzles 1 and the ground is 30 degrees to 60 degrees. The feed port of the suction nozzle 1 is long and narrow. The length of the feed port of the suction nozzle 1 is greater than the length of the discharge port. The width of the feed port of the suction nozzle 1 is less than the width of the discharge port. Example

[0043] Example 2 is basically the same as Example 1, except that:

[0044] A rubber baffle 12 is fixedly installed on the feed inlet of the suction nozzle 1. The rubber baffle 12 is located on the side of the feed inlet of the suction nozzle 1 near the reversing device 3. The top of the rubber baffle 12 is fixedly connected to the outer edge of the feed inlet of the suction nozzle 1, and the bottom of the rubber baffle 12 is in contact with the bottom surface of the carriage. Example

[0045] Example 3 is basically the same as Example 2, except that:

[0046] The top of the discharge pipe 2 is provided with a connecting flange 21, which is fixedly connected to the air inlet duct of the exhaust fan.

[0047] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A bidirectional single-pass suction unit for cleaning residual coal after unloading from open wagons, characterized in that: The suction unit includes: two suction nozzles (1) and a discharge pipe (2); Both suction nozzles (1) are horn-shaped structures. The two suction nozzles (1) are mirror-symmetrically arranged at the bottom of the discharge pipe (2). The inlets of the two suction nozzles (1) are inclined downwards. The outlets of the two suction nozzles (1) are connected to each other as an integral structure. The outlets of the two suction nozzles (1) are connected to the inlet of the discharge pipe (2). The outlet of the discharge pipe (2) is connected to the air inlet of the exhaust fan. A rubber baffle (12) is fixedly installed on the feed inlet of the suction nozzle (1). The rubber baffle (12) is located on the side of the feed inlet of the suction nozzle (1) near the reversing device (3). The top of the rubber baffle (12) is fixedly connected to the outer edge of the feed inlet of the suction nozzle (1), and the bottom of the rubber baffle (12) is in contact with the bottom surface of the carriage.

2. The bidirectional single-pass suction unit for cleaning residual coal after unloading from an open wagon, as described in claim 1, is characterized in that: The suction unit also includes a reversing device (3), which includes a baffle (31) and a drive mechanism (32). The baffle (31) is correspondingly set with the discharge port of the suction nozzle (1). The outer edge of the baffle (31) is sealed to the discharge port of the suction nozzle (1). The drive mechanism (32) is fixedly set on the residual coal cleaning device. The power output end of the drive mechanism (32) is driven to cooperate with the baffle (31).

3. A bidirectional single-pass suction unit for cleaning residual coal after unloading from an open wagon, as described in claim 2, is characterized in that: The top of the discharge port of the two suction nozzles (1) is fixedly connected to the discharge pipe (2), and the bottom of the discharge port of the two suction nozzles (1) is connected by a connecting plate (11). The side walls of the two suction nozzles (1) are an integral structure. A rotating shaft (33) is fixedly provided at the bottom of the baffle (31). The two ends of the rotating shaft (33) pass through the discharge pipe (2) and are limited to the discharge pipe (2). The baffle (31) is rotated to cooperate with the side wall of the discharge pipe (2) through the rotating shaft (33) provided on it.

4. A bidirectional single-pass suction unit for cleaning residual coal after unloading from an open wagon, as described in claim 3, is characterized in that: The reversing device (3) also includes a rocker arm (34), the driving mechanism (32) is an electric push rod, one end of the rocker arm (34) is fixedly connected to the end of the rotating shaft (33), and the push rod of the driving mechanism (32) is hinged to the other end of the rocker arm (34).

5. A bidirectional single-pass suction unit for cleaning residual coal after unloading from an open wagon, as described in any one of claims 1 to 4, characterized in that: The angle between the two suction nozzles (1) and the ground is (30) degrees to (60) degrees.

6. A bidirectional single-pass suction unit for cleaning residual coal after unloading from an open wagon, as described in claim 5, is characterized in that: The feed inlet of the suction nozzle (1) is elongated, the length of the feed inlet of the suction nozzle (1) is greater than the length of the discharge outlet, and the width of the feed inlet of the suction nozzle (1) is less than the width of the discharge outlet.

7. A bidirectional single-pass suction unit for cleaning residual coal after unloading from an open wagon, as described in claim 1, is characterized in that: The top of the discharge pipe (2) is provided with a connecting flange (21), which is fixedly connected to the air inlet duct of the exhaust fan.

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