Dust collecting device of gravel processing system

Abstract

The utility model relates to the technical field of dust removal in gravel processing, in particular to a dust collection device of a gravel processing system. The device is characterized in that a frequency conversion fan is arranged at an air outlet of a bag-type dust collector and is connected with a control terminal; one end of each primary dust collection pipe is connected with an air inlet of the bag-type dust collector, and the other end of each primary dust collection pipe is connected with the corresponding number of branch dust collection pipes through a three-way air pipe; a dust collection point is connected to one end, far away from the three-way air pipe, of each branch dust collection pipe; the dust concentration sensors are correspondingly arranged on the dust collection points and are connected with the control terminal; an adjusting air valve is arranged at the end, connected into the dust collecting point, of each branch dust collecting pipe, and each adjusting air valve is connected with the control terminal. According to the utility model, the effects of dust collection as required, energy conservation and consumption reduction can be realized, the dust collection efficiency can be improved, the maintenance cost is reduced, and the installation and the movement are simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology in sand and gravel processing, specifically to a dust collection device for a sand and gravel processing system. Background Technology

[0002] Sand and gravel processing equipment generates a large amount of dust during crushing, screening, and conveying processes. Without dust control, this will cause serious environmental pollution, severely deteriorate the working environment for workers, endanger their health, and increase the risk of occupational diseases. Traditional dust collection devices generally suffer from low efficiency and cannot effectively and comprehensively suppress dust. Traditional dust removal devices use directly welded pipes, resulting in a bulky structure that occupies a lot of space and is inconvenient to install and move. Furthermore, dust accumulation and adhesion require frequent cleaning and maintenance, leading to high maintenance costs. Additionally, the high power consumption of the fans during dust removal results in high energy consumption.

[0003] In summary, in order to solve the problems of low dust collection efficiency, inconvenient installation and relocation, high maintenance costs and high energy consumption of traditional dust collection devices, it is necessary to develop a dust collection device for sand and gravel processing systems. Utility Model Content

[0004] The purpose of this utility model is to provide a dust collection device for a sand and gravel processing system. The specific technical solution is as follows:

[0005] A dust collection device for a sand and gravel processing system includes a bag filter and a dust collection regulating component;

[0006] The dust collection and adjustment assembly includes a control terminal, a variable frequency fan, multiple main dust collection pipes, multiple three-way ventilation pipes, multiple branch dust collection pipes, multiple regulating valves, and multiple dust concentration sensors. The variable frequency fan is located at the outlet of the bag filter and connected to the control terminal. One end of each main dust collection pipe is connected to the inlet of the bag filter, and the other end is connected to a corresponding number of branch dust collection pipes via three-way ventilation pipes. A dust collection point is connected to the end of each branch dust collection pipe away from the three-way ventilation pipe. Each dust concentration sensor is correspondingly located at each dust collection point and connected to the control terminal. A regulating valve is located at the end of each branch dust collection pipe connected to the dust collection point, and each regulating valve is connected to the control terminal.

[0007] Optionally, the dust collection adjustment assembly further includes a crusher dust collection hood; the crusher dust collection hood is installed on the crusher, and a dust collection point inlet is provided on the crusher dust collection hood and connected to the branch dust collection pipe;

[0008] The top surface of the dust collection hood of the crusher is convex relative to the side surface.

[0009] Optionally, the dust collection device of the sand and gravel processing system further includes a first vibrator; the first vibrator is installed on the dust collection hood of the crusher.

[0010] Optionally, the dust collection adjustment assembly further includes a vibrating screen dust collection hood; the vibrating screen dust collection hood is installed on the vibrating screen, and a dust collection point inlet is provided on the vibrating screen dust collection hood and connected to the branch dust collection pipe.

[0011] Optionally, the top surface of the dust collection hood of the vibrating screen is convex relative to the side surface.

[0012] Optionally, the dust collection device of the sand and gravel processing system further includes a second vibrator; the second vibrator is disposed on the dust collection cover of the vibrating screen.

[0013] Optionally, the dust collection adjustment assembly further includes a conveyor dust collection hood; the conveyor dust collection hood is installed on the conveyor, and a dust collection point inlet is provided at the upper end of the conveyor dust collection hood and connected to the branch dust collection pipe;

[0014] The top surface of the dust collection hood of the conveyor is convex relative to the side surface.

[0015] Optionally, the control terminal includes a PLC controller.

[0016] Optionally, the regulating valve is an electrically regulated regulating valve.

[0017] Optionally, the dust collection pipe of the main road and the three ventilation pipes, as well as the dust collection pipe of the branch road, are detachably connected by flanges and bolts.

[0018] The application of the technical solution of this utility model has at least the following beneficial effects:

[0019] (1) The present invention provides a dust collection device for a sand and gravel processing system. The control terminal controls the opening of the regulating valve and the operating frequency of the variable frequency fan based on the dust concentration measured in real time at each dust collection point by the dust concentration sensors. That is, by coordinating the operation of the variable frequency fan and the regulating valve, the effect of on-demand dust collection and energy saving is achieved. Specifically, when the dust concentration at the dust collection point is high, the control terminal controls the opening of the regulating valve at that dust collection point to increase; when the dust concentration at the dust collection point is low, the control terminal controls the opening of the regulating valve at that dust collection point to decrease; when the total dust concentration at each dust collection point decreases, the control terminal decreases the operating frequency of the variable frequency fan; when the total dust concentration at each dust collection point increases, the control terminal increases the operating frequency of the variable frequency fan.

[0020] (2) In this utility model, the dust collection cover of the crusher is used to facilitate the collection of dust generated when the crusher crushes sand and gravel, thereby improving the dust collection efficiency; the dust collection cover of the vibrating screen is used to facilitate the collection of dust generated when the vibrating screen screens sand and gravel, thereby improving the dust collection efficiency; and the dust collection cover of the conveyor is used to facilitate the collection of dust generated when the conveyor transports sand and gravel, thereby improving the dust collection efficiency.

[0021] (3) The first vibrator in this utility model can shake off the dust accumulated or stuck on the dust collection hood of the crusher, preventing the dust from clogging the branch dust collection pipe or crushing the dust collection hood of the crusher, avoiding frequent cleaning and maintenance, and reducing maintenance costs; the second vibrator can shake off the dust accumulated or stuck on the dust collection hood of the vibrating screen, preventing the dust from clogging the branch dust collection pipe or crushing the dust collection hood of the vibrating screen, avoiding frequent cleaning and maintenance, and reducing maintenance costs.

[0022] (4) In this utility model, the dust collection pipe on the main road and the three ventilation pipes are detachably connected by flanges and bolts, respectively, and the three ventilation pipes and the branch dust collection pipes are connected by bolts, which simplifies installation and movement.

[0023] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0025] Figure 1 This is a front view of a dust collection device in a sand and gravel processing system according to one embodiment;

[0026] Figure 2 This is a top view of a dust collection device in a sand and gravel processing system according to an embodiment (in... Figure 2 The arrows in the image indicate the direction of sand and gravel transport.

[0027] Figure 3 This is a side view of the dust collection cover of the vibrating screen installed on the vibrating screen in the embodiment;

[0028] Figure 4 This is an isometric view of the dust collection hood of the vibrating screen in the embodiment;

[0029] Among them, 1. Variable frequency fan, 2. Main dust collection pipe, 3. Three-way ventilation pipe, 4. Branch dust collection pipe, 5. Electric regulating air valve, 6. Crusher dust collection hood, 7. Vibrating screen dust collection hood, 8. Conveyor dust collection hood, 9. First vibrator, 10. Second vibrator. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0031] Example:

[0032] See Figures 1-2 A dust collection device for a sand and gravel processing system, comprising a bag filter and a dust collection regulating component;

[0033] The dust collection and adjustment assembly includes a control terminal (specifically a PLC controller, wherein the control program built into the PLC controller is existing technology and is not shown in the figure), a variable frequency fan 1, multiple main dust collection pipes 2, multiple three-way ventilation pipes 3, multiple branch dust collection pipes 4, multiple regulating air valves (specifically electric regulating air valves 5), and multiple dust concentration sensors (not shown in the figure); the variable frequency fan 1 is located at the air outlet of the bag filter and is connected to the control terminal; one end of each main dust collection pipe 2 is connected to the air inlet of the bag filter, and the other end is connected to a corresponding number of branch dust collection pipes 4 through the three-way ventilation pipes 3; a dust collection point is connected to the end of each branch dust collection pipe 4 away from the three-way ventilation pipe 3; each dust concentration sensor is correspondingly located at each dust collection point and is connected to the control terminal; a regulating air valve is located at the end of each branch dust collection pipe 4 connected to the dust collection point, and each regulating air valve is connected to the control terminal.

[0034] The dust collection adjustment assembly also includes a crusher dust collection hood 6; the crusher dust collection hood 6 is installed on the crusher to facilitate the collection of dust generated when the crusher crushes sand and gravel, thereby improving dust collection efficiency; a dust collection point inlet is provided on the crusher dust collection hood 6 and is connected to the branch dust collection pipe 4.

[0035] The top surface of the dust collection hood 6 of the crusher is convex relative to the side surface to reduce the accumulation or adhesion of dust on the top surface of the dust collection hood 6 of the crusher.

[0036] The dust collection device of the sand and gravel processing system also includes a first vibrator 9 (specifically a high-frequency vibrator); the first vibrator 9 is installed on the dust collection hood 6 of the crusher to shake off the dust accumulated or adhered to the dust collection hood 6 of the crusher, preventing the dust from clogging the branch dust collection pipe 4 or crushing the dust collection hood 6 of the crusher, avoiding frequent cleaning and maintenance, and reducing maintenance costs.

[0037] See Figures 3-4The dust collection adjustment assembly also includes a vibrating screen dust collection hood 7; the vibrating screen dust collection hood 7 is installed on the vibrating screen to facilitate the collection of dust generated when the vibrating screen screens sand and gravel, thereby improving dust collection efficiency; a dust collection point inlet is provided on the vibrating screen dust collection hood 7 and is connected to the branch dust collection pipe 4.

[0038] See Figure 4 The top surface of the vibrating screen dust collection hood 7 is convex outward relative to the side surface. Specifically, the top surface of the vibrating screen dust collection hood 7 includes a top surface and slopes arranged around the top surface. The side of each slope away from the top surface is connected to the corresponding side surface. Each slope and the top surface form an outward convex top surface structure. This top surface structure can reduce the accumulation or adhesion of dust on the top surface of the vibrating screen dust collection hood 7.

[0039] The dust collection device of the sand and gravel processing system also includes a second vibrator 10 (specifically a high-frequency vibrator); the second vibrator 10 is installed on the dust collection cover 7 of the vibrating screen to shake off the dust accumulated or stuck on the dust collection cover 7 of the vibrating screen, preventing the dust from clogging the branch dust collection pipe 4 or crushing the dust collection cover 7 of the vibrating screen, avoiding frequent cleaning and maintenance, and reducing maintenance costs.

[0040] The dust collection adjustment assembly also includes a conveyor dust collection hood 8; the conveyor dust collection hood 8 is installed on the conveyor to facilitate the collection of dust generated when the conveyor transports sand and gravel, thereby improving dust collection efficiency; a dust collection point inlet is provided at the upper end of the conveyor dust collection hood 8 and is connected to the branch dust collection pipe 4; the conveyor is provided corresponding to the discharge end of the vibrating screen, used to transport a portion of the screened sand and gravel out, while the other portion is transported back to the crusher for further crushing. It should be noted that, see... Figures 1-3 Since the vibrating screen has two discharge ends, two dust collection point inlets need to be set at the upper end of the dust collection hood 8 of the conveyor. Therefore, a three-ventilation pipe 3 needs to be added and connected to the corresponding number of branch dust collection pipes 4 to realize the connection and dust collection of the two dust collection point inlets at the upper end of the dust collection hood 8 of the conveyor.

[0041] The top surface of the conveyor dust collection hood 8 is convex relative to the side surface to reduce the accumulation or adhesion of dust on the top surface of the conveyor dust collection hood 8.

[0042] The main dust collection pipe 2 and the three ventilation pipe 3 are detachably connected via flanges and bolts, as are the three ventilation pipe 3 and the branch dust collection pipe 4, simplifying installation and relocation. Additionally, a sealing ring is installed between the two flanges to prevent dust from escaping.

[0043] The working principle of the dust collection device in the sand and gravel processing system is as follows:

[0044] The control terminal controls the opening degree of the regulating damper and the operating frequency of the variable frequency fan 1 based on the real-time dust concentration measured by the dust concentration sensors at each dust collection point. This coordinated control of the variable frequency fan 1 and the regulating damper achieves on-demand dust collection and energy saving. Specifically, when the dust concentration at a collection point is high, the control terminal increases the opening degree of the regulating damper at that point; when the dust concentration at a collection point is low, the control terminal decreases the opening degree of the regulating damper; when the total dust concentration at all collection points decreases, the control terminal decreases the operating frequency of the variable frequency fan 1; and when the total dust concentration at all collection points increases, the control terminal increases the operating frequency of the variable frequency fan 1.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dust collection device for a sand and gravel processing system, characterized in that, Includes baghouse dust collectors and dust collection conditioning components; The dust collection and adjustment assembly includes a control terminal, a variable frequency fan (1), multiple main dust collection pipes (2), multiple three-way ventilation pipes (3), multiple branch dust collection pipes (4), multiple regulating valves, and multiple dust concentration sensors. The variable frequency fan (1) is located at the outlet of the bag filter and is connected to the control terminal. One end of each main dust collection pipe (2) is connected to the inlet of the bag filter, and the other end is connected to a corresponding number of branch dust collection pipes (4) through the three-way ventilation pipes (3). A dust collection point is connected to the end of each branch dust collection pipe (4) away from the three-way ventilation pipe (3). Each dust concentration sensor is correspondingly located at each dust collection point and is connected to the control terminal. A regulating valve is located at the end of each branch dust collection pipe (4) connected to the dust collection point, and each regulating valve is connected to the control terminal.

2. The dust collection device for the sand and gravel processing system according to claim 1, characterized in that, The dust collection adjustment assembly also includes a crusher dust collection hood (6); the crusher dust collection hood (6) is installed on the crusher, and a dust collection point inlet is provided on the crusher dust collection hood (6) and connected to the branch dust collection pipe (4); The top surface of the dust collection hood (6) of the crusher is convex relative to the side surface.

3. The dust collection device for the sand and gravel processing system according to claim 2, characterized in that, It also includes a first vibrator (9); the first vibrator (9) is mounted on the dust collection hood (6) of the crusher.

4. The dust collection device for the sand and gravel processing system according to claim 1, characterized in that, The dust collection adjustment assembly also includes a vibrating screen dust collection hood (7); the vibrating screen dust collection hood (7) is installed on the vibrating screen, and a dust collection point inlet is provided on the vibrating screen dust collection hood (7) and connected to the branch dust collection pipe (4).

5. The dust collection device for the sand and gravel processing system according to claim 4, characterized in that, The top surface of the dust collection cover (7) of the vibrating screen is convex relative to the side surface.

6. The dust collection device for the sand and gravel processing system according to claim 4, characterized in that, It also includes a second vibrator (10); the second vibrator (10) is disposed on the dust collection cover (7) of the vibrating screen.

7. The dust collection device for the sand and gravel processing system according to claim 1, characterized in that, The dust collection adjustment assembly also includes a conveyor dust collection hood (8); the conveyor dust collection hood (8) is installed on the conveyor, and a dust collection point inlet is provided at the upper end of the conveyor dust collection hood (8) and connected to the branch dust collection pipe (4); The top surface of the conveyor dust collection cover (8) is convex relative to the side surface.

8. The dust collection device for a sand and gravel processing system according to any one of claims 1 to 7, characterized in that, The control terminal includes a PLC controller.

9. The dust collection device for a sand and gravel processing system according to claim 8, characterized in that, The regulating air valve is an electrically regulated air valve (5).

10. The dust collection device for a sand and gravel processing system according to claim 8, characterized in that, The dust collection pipe (2) on the main road and the three ventilation pipe (3) are detachably connected by flanges and bolts, as are the three ventilation pipe (3) and the branch dust collection pipe (4).

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