Dust removal system of car dumper chamber

Abstract

The utility model belongs to the technical field of dust removal in the material transportation process, and particularly relates to a dust removal system of a car dumper chamber, which comprises dust collecting covers, a dust remover, a dust removal fan and a chimney, the dust collecting covers are sequentially connected with the dust remover, the dust removal fan and the chimney through pipelines, the dust collecting covers are arranged at multiple points, and a jet fan is arranged opposite to an opening of at least one dust collecting cover. And a blowing and suction combined working mode is formed. The dust collection device has the beneficial effects that the dust collection device can be used for comprehensively collecting a plurality of dust raising points of the car dumper chamber, so that the working operation environment of the car dumper chamber is obviously improved, the wind speed is adjusted by matching with the working state of the car dumper, and the energy consumption of a dust removal fan can be obviously reduced. The blowing and sucking combined working mode is adopted, the direction of dust is controlled through airflow, and the dust collecting rate is increased. The turning plates are arranged in the side-suction and bottom-suction trough dust catching covers to adjust the air speed of the side-suction ports, so that materials are prevented from being sucked into a dust removal system, and safe and reliable operation of equipment is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal in material transportation process, in particular to a dust removal system for a dumper room. Background Art

[0002] With the expansion of domestic and foreign enterprises and the improvement of modernization, the tipping machine system has received more and more attention and application due to its highly professional and automated bulk material unloading method. However, in the process of unloading bulk materials, due to factors such as large drop height and large volume of the tipping machine, there are many dust points during the unloading process, generating a large amount of dust, which seriously pollutes the environment in the tipping machine room and endangers the health of workers.

[0003] The Chinese utility model patent with application number 201821919462.3 discloses a dust removal mechanism for a dumper, including a water spray pipe, which is installed above the truck compartment, and the two ends of the water spray pipe are respectively fixed to the end rings on both sides of the dumper, and the water spray pipe is connected to the water supply tank through a water supply pipe provided with a water pump, and the upper part of the water supply tank is connected to the lower part of the water supply tank through a water supply pipe, and the water supply pipe is inserted into the water supply tank, and the water supply pipe is penetrated by a floating rod, and the floating rod can block the lumen of the water supply pipe. This scheme removes dust by spraying water on the truck compartment.

[0004] The Chinese utility model patent with application number 201610223660.5 discloses a dry fog dust suppression system for a tipper, including a pressure pump, an air compressor, an air tank, a dry fog machine, and a spray box. The pressure pump and the dry fog machine are connected by a water pipeline, and the air compressor, the air tank, the dry fog machine and the spray box are connected in sequence by an air pipeline. The dry fog machine is provided with an electric control system and a flow control system. The electric control system includes a programmable controller, a protection circuit, and a relay. The electric control system is provided with two modes, manual and automatic. A human-machine interface touch screen is provided on the dry fog machine. The spray box also includes a fixed clip and an adjustable angle fixing seat. The spray box is placed in the fixed clip, and the fixed clip is installed on the adjustable angle fixing seat. Compared with the traditional water spray dust removal, the dry fog dust suppression system has a smaller water mist diameter, more uniform atomization, and greatly reduces water consumption. At present, the water spray dust removal and dry fog dust suppression used in the tipper room cannot effectively capture and collect dust, and the effect of improving the environment of the entire tipper room is poor, which needs to be improved urgently. Utility Model Content

[0005] The purpose of the utility model is to provide a dust removal system for a tipper room, which overcomes the shortcomings of the prior art. By performing all-round dust capture on dust-raising points in various parts of the tipper room, the trough dust collection hood can simultaneously suck dust from the side and from below, and at the same time adopts a combined blowing and suction working mode, using wind force to control the direction of dust, thereby improving capture efficiency and effect and reducing the energy consumption of the dust removal fan.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A dust removal system for a dumper room includes a dust hood, a dust collector, a dust removal fan and a chimney. The dust hood is connected to the dust collector, the dust removal fan and the chimney in sequence through a pipeline. The dust hood is arranged at multiple points, and a jet fan is arranged opposite to at least one opening of the dust hood to form a combined blowing and suction working mode.

[0008] The dust hood includes an upper side suction hood, a trough dust hood, and a lower air suction hood, which are respectively arranged at the upper, middle and lower positions of the tipping machine room. The upper side suction hood is arranged near the tipping machine, and the hood opening plane faces the car opening when the car is flipped 60°. The trough dust hood is arranged near the grate at the edge of the trough, and the lower air suction hood is arranged near the underground belt dropping point.

[0009] The upper side suction hood, the trough dust hood and the lower air suction hood are respectively connected to the dust collector through pipelines; or the upper side suction hood and the trough dust hood are respectively connected to the main pipeline through a common branch pipeline, and the lower air suction hood is connected to the main pipeline through an independent branch pipeline.

[0010] A jet fan is arranged opposite to the opening of the trough dust collecting cover.

[0011] An electric regulating valve is arranged on the pipeline where the upper side suction cover is located.

[0012] A pneumatic shut-off valve is provided on the common branch pipeline of the upper side suction hood and the trough dust collecting hood.

[0013] The dust removal fan is a variable frequency fan.

[0014] The structure of the trough dust collecting cover includes a cover body, a flap, a rotating shaft and an electric actuator. The flap is connected to the rotating shaft and is arranged inside the cover body. One end of the rotating shaft passes through the cover body and is connected to the electric actuator.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1) By collecting dust from multiple dust points in the tipper room in all directions, the working environment of the tipper room is significantly improved. By adjusting the wind speed according to the working state of the tipper, the energy consumption of the dust removal fan can be significantly reduced.

[0017] 2) Use the combined working mode of blowing and suction to control the direction of dust with airflow, thereby improving the collection efficiency and effect and increasing the dust collection rate.

[0018] 3) By installing flaps in the dust collecting hoods of the side suction and down suction troughs, the wind speed of the side suction port can be adjusted to prevent materials from being sucked into the dust removal system, thus ensuring safe and reliable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the dust removal system for the dumper room of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the dust collecting cover of the material trough in the embodiment of the utility model.

[0021] In the figure: 1- trough dust hood, 2- upper side suction hood, 3- lower suction hood, 4- dust removal duct, 5- electric valve, 6- cut-off valve, 7- bag dust collector, 8- dust removal fan, 9- chimney, 10- jet fan, 11- tipping machine, 12- carriage, 13- grate, 14- trough, 15- floor, 16- belt, 101- hood body, 102- flap, 103- shaft, 104- electric actuator. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the specific embodiments required to be used in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some implementation methods of the utility model. For ordinary technicians in this field, other specific embodiments can be obtained based on these specific embodiments without paying creative work.

[0024] The components of the embodiments of the present invention generally described and shown in the specific embodiments herein can be arranged and designed in countless different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the utility model claimed, but only represents the selected embodiments of the utility model.

[0025] See Figure 1-2, is a schematic diagram of the structure of the dust removal system of the car tipping machine room of the utility model, which includes a trough dust hood 1, an upper side suction hood 2, a lower air suction hood 3, a jet fan 10, an electric valve 5, a cut-off valve 6, and a dust removal pipeline 4. The upper side suction hood 2, the trough dust hood 1, and the lower air suction hood 3 are respectively arranged at the upper, middle, and lower positions of the car tipping machine room. After being connected through the dust removal pipeline 4, the dust purification process is completed with the bag dust collector 7, the dust removal fan 8, and the chimney 9 connected thereto. The upper air suction hood 2 is arranged near the car tipping machine 11, and its hood opening plane needs to face the car opening when the car 12 is turned 60°. The trough dust hood 1 is arranged near the edge grate 13 of the trough 14, and the lower air suction hood 3 is arranged near the drop point of the underground belt 16. The jet fan 10 is arranged opposite the trough dust hood 1, forming a blowing and suction combined working mode, using the airflow to control the direction of the dust and improve the dust capture rate. This combined blowing and suction working mode utilizes the jet as a power to transport the dust to the trough dust collecting hood 1, thereby controlling the diffusion and escape of the dust.

[0026] The electric valve 5 is an electric regulating valve, which is arranged on a branch pipe connecting the upper side suction hood 2 and the dust removal pipe, and can make flow adjustment through real-time control.

[0027] The shut-off valve 6 is a pneumatic shut-off valve, which is arranged on the common branch pipe connecting the upper side suction hood 2 and the trough dust hood 1. When only the lower suction hood 3 is needed, the trough dust hood 1 and the upper side suction hood 2 can be closed to reduce the air volume of the dust removal system. The dust removal fan 8 is a variable frequency fan, which can adjust the air volume of the dust removal system according to different working conditions during the entire unloading process of the tipper to reduce the energy consumption of the fan.

[0028] The trough dust collecting cover is composed of a cover body 101 , a flap 102 , a rotating shaft 103 , and an electric actuator 104 . The flap 102 is connected to the rotating shaft 103 and is arranged inside the cover body 101 . One end of the rotating shaft 102 crosses the cover body 101 and is connected to the electric actuator 104 .

[0029] The specific operation steps of the dust removal system for the dumper room of the utility model are as follows:

[0030] 1) When the carriage 12 enters the specified position in the tipping machine 11, the tipping machine 11 clamps the carriage, at which time the cut-off valve 6 is opened, the electric valve 5 is in a fully open state, the dust removal fan 8 runs at a high speed, and a negative pressure flow field is formed around the upper side suction hood 2;

[0031] 2) When the tipping machine 11 fixes the carriage and the body and turns them over by about 60°, the jet fan 10 is turned on. At this time, the falling materials are relatively small, and the first smoke and dust generated by the friction of the materials at the carriage opening is captured by the upper side suction hood 2;

[0032] 3) When the carriage 12 flips 60-170°, the electric valve 5 reduces its opening, and the dust generated by the friction between the material flow, the air and the grate 13 is captured by the side cover of the trough dust hood 1 through the combined operation of blowing and suction; at the same time, the dust generated by the material hitting the inner wall of the trough 14 is captured by the lower cover of the trough dust hood 1. The electric actuator 104 on one side of the trough dust hood 1 can rotate the flap 102 in the trough dust hood 1, and adjust the cover opening by adjusting the size of the side opening until a suitable wind speed is obtained, so as to avoid the material being sucked into the dust removal system, causing pipe blockage and raw material loss. The dust generated by the material falling on the belt is captured by the lower suction hood 3, so as to achieve comprehensive capture of multiple dust generating positions;

[0033] 4) After the material is dumped, the carriage 12 and the tipper 11 are reset, and the electric valve 5 is adjusted to a fully open state to prepare for the next unloading; the cut-off valve 6 is closed, the jet fan 10 is turned off, and the dust removal fan 8 runs at a low speed.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal system for a dumper room, comprising a dust hood, a dust collector, a dust removal fan and a chimney, wherein the dust hood is connected to the dust collector, the dust removal fan and the chimney in sequence through a pipeline, and the dust hood is arranged at multiple points, characterized in that: A jet fan is arranged opposite to the opening of at least one dust collecting hood, so as to form a blowing and suction combined working mode.

2. A dust removal system for a dumper compartment according to claim 1, characterized in that: The dust hood includes an upper side suction hood, a trough dust hood, and a lower air suction hood, which are respectively arranged at the upper, middle and lower positions of the tipping machine room. The upper side suction hood is arranged near the tipping machine, and the hood opening plane faces the car opening when the car is flipped 60°. The trough dust hood is arranged near the grate at the edge of the trough, and the lower air suction hood is arranged near the underground belt dropping point.

3. A dust removal system for a dumper compartment according to claim 2, characterized in that: The upper side suction hood, the trough dust hood and the lower air suction hood are respectively connected to the dust collector through pipelines; or the upper side suction hood and the trough dust hood are respectively connected to the main pipeline through a common branch pipeline, and the lower air suction hood is connected to the main pipeline through an independent branch pipeline.

4. A dust removal system for a dumper compartment according to claim 2, characterized in that: A jet fan is arranged opposite to the opening of the trough dust collecting cover.

5. The dust removal system for a dumper compartment according to claim 2, characterized in that: An electric regulating valve is arranged on the pipeline where the upper side suction cover is located.

6. A dust removal system for a dumper compartment according to claim 3, characterized in that: A pneumatic shut-off valve is provided on the common branch pipeline of the upper side suction hood and the trough dust collecting hood.

7. The dust removal system for a dumper compartment according to claim 1, characterized in that: The dust removal fan is a variable frequency fan.

8. The dust removal system for a dumper compartment according to claim 2, characterized in that: The structure of the trough dust collecting cover includes a cover body, a flap, a rotating shaft and an electric actuator. The flap is connected to the rotating shaft and is arranged inside the cover body. One end of the rotating shaft passes through the cover body and is connected to the electric actuator.

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