A dust suppression and humidification device

Abstract

This application provides a dust suppression and humidification device, belonging to the field of material humidification. The device mainly consists of a belt conveyor, a closed water supply chamber, a material moisture analyzer, and a PLC cabinet. The closed water supply chamber is located above the head of the belt conveyor and is connected to a funnel via a flexible seal. It is equipped with nozzles and guide plates to ensure uniform water supply. The material moisture analyzer monitors the material humidity in real time and is connected to the PLC cabinet. The PLC cabinet receives signals from the material moisture analyzer, processes and judges the data through its internal processor, and controls the opening and closing of the solenoid valve to automatically adjust the water supply. This device addresses the principle that changes in material moisture content affect dust generation. By introducing the closed water supply chamber, it makes material humidification more uniform, fundamentally reducing dust generation. The device has a compact structure, is easy to operate, and effectively solves the problem of dust pollution.

Description

Technical Field

[0001] This application relates to the field of material humidification, and more particularly to a dust suppression and humidification device. Background Technology

[0002] During the transportation of materials such as coal, ore, and limestone, dust is easily generated from the loading and unloading points due to impacts or airflow. This dust not only endangers the occupational health of workers and increases the difficulty of cleaning, but also pollutes the atmospheric environment and affects the port's green, low-carbon, and environmentally friendly assessment and the development of related industries.

[0003] Traditional dust removal technologies mainly involve enclosed collection of dust after it is generated or dust suppression treatment on the surface of materials, but the effect is limited. Summary of the Invention

[0004] The purpose of this application is to overcome the limitations of the prior art and provide a dust suppression and humidification device.

[0005] This application provides a dust suppression and humidification device, including: a belt conveyor, a closed water supply chamber, a flexible connection seal, a nozzle, a guide plate, a material moisture detector, a filter, a solenoid valve, a PLC cabinet, a material flow detection switch, and a belt scale;

[0006] The conveyor belt head is equipped with a closed water supply chamber, and the top of the closed water supply chamber is tightly connected to the funnel by a flexible connection; the closed water supply chamber is equipped with nozzles and guide plates to ensure uniform water supply.

[0007] The material moisture detector is installed next to the belt conveyor and connected to the PLC cabinet to monitor the material moisture in real time. The belt scale is installed below the belt conveyor to measure the material flow rate.

[0008] The solenoid valve and filter are installed between the water source and the water replenishment tank;

[0009] The PLC cabinet receives signals from the material moisture detector, belt scale, and material flow detection switch. It processes and judges the data through its internal processor, and then controls the opening and closing of the solenoid valve to achieve automatic adjustment of the water replenishment.

[0010] Optionally, automatic adjustment of water replenishment is implemented, including: calculating the water replenishment amount, as shown in the following expression:

[0011] c = Q × (ab) × 1000

[0012] Where Q(t / h) is the conveyor capacity of the belt conveyor as shown by the belt scale, a is the calibrated moisture content, b is the measured moisture content, and c is the water replenishment amount (L / h).

[0013] Optionally, the closed water replenishment tank includes: a negative pressure vent hole provided at the top of the closed water replenishment tank.

[0014] Optionally, the deflector is configured as a conical structure.

[0015] Optionally, the guide vane includes a wear-resistant liner arranged on the surface in contact with the material.

[0016] Optionally, an inspection hole is provided in the upper part of the closed water replenishment tank.

[0017] The beneficial effects of this application are:

[0018] This application provides a dust suppression and humidification device, including: a belt conveyor, a closed water supply chamber, a flexible connection seal, nozzles, a guide plate, a material moisture detector, a filter, a solenoid valve, a PLC cabinet, a material flow detection switch, and a belt scale. The closed water supply chamber is located above the head of the belt conveyor, and its top is tightly connected to a funnel via a flexible connection seal. Nozzles and guide plates are installed inside the closed water supply chamber to ensure uniform water supply. The material moisture detector is installed adjacent to the belt conveyor and connected to the PLC cabinet to monitor material humidity in real time. The belt scale is installed below the belt conveyor to measure material flow. The solenoid valve and filter are installed between the water source and the water supply chamber. The PLC cabinet receives signals from the material moisture detector, belt scale, and material flow detection switch, processes and judges the data through its internal processor, and then controls the opening and closing of the solenoid valve to achieve automatic adjustment of the water supply. This application starts from the principle that changes in material moisture content affect dust generation. By introducing a closed water supply chamber, the material is humidified more uniformly, thereby fundamentally reducing dust generation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the dust suppression and humidification device in this application. Detailed Implementation

[0020] The present application will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present application and implement it.

[0021] The following are examples of specific implementation processes provided to illustrate the technical solutions to be protected in this application. However, this application is also implemented in other ways different from the descriptions herein. Those skilled in the art can implement this application using different technical means under the guidance of the concept of this application. Therefore, this application is not limited to the specific embodiments below.

[0022] Please refer to Figure 1 As shown, a dust suppression and humidification device is disclosed. This device effectively reduces dust generation during material transportation by precisely controlling the humidity of the material, thereby achieving low-carbon, intelligent, and environmentally friendly operation of the bulk material conveying system.

[0023] The dust suppression and humidification device includes a belt conveyor 7, a closed water supply chamber 2, a flexible connection seal 3, a nozzle 4, a guide plate 5, a material moisture detector 8, a ball valve 9, a filter 10, a solenoid valve 11, a PLC cabinet 12, a material flow detection switch 13, and a belt scale 14.

[0024] The belt conveyor 7 serves as the foundation of the entire device and the main channel for material transport, running throughout the entire device. A funnel is installed at the upper end of its head, and this funnel is connected to the enclosed water supply tank 2 via a flexible sealing structure 3. The funnel is used for material addition.

[0025] The enclosed water replenishment chamber 2 is located above the belt conveyor 7, and its top is tightly connected to the funnel at the head of the belt conveyor 7 via a flexible sealing connection 3. Nozzles 4 are installed inside the chamber for spraying water mist onto the material. Simultaneously, a guide plate 5 is installed inside the chamber, connected to the chamber body via a partition to form an integrated structure. The design of the guide plate 5 allows the material to spread evenly as it passes through the water replenishment chamber, facilitating uniform humidification by the nozzles 4.

[0026] The guide plate 5 is located inside the enclosed water replenishment chamber 2 and is fixedly connected to the chamber body through a partition. Its conical design allows the material to spread evenly along its surface when passing through, ensuring that the material can fully contact the water mist sprayed from the nozzle 4 and achieve uniform humidification.

[0027] The material moisture detector 8 is installed on the side of the belt conveyor 7, preferably at a suitable position along the material conveying path, to monitor the moisture content of the material in real time. The material moisture detector 8 is connected to the PLC cabinet 12 via a sensor, transmitting the detected data to the control system to provide a basis for calculating the water replenishment amount.

[0028] The solenoid valve 11 and filter 10 are installed on the pipeline of the water replenishment system, located between the water source and the closed water replenishment tank 2. The filter 10 is used to filter impurities in the water to ensure the purity of the replenished water; the solenoid valve 11 controls the water replenishment switch according to the control signal of the PLC cabinet 12 to realize the automatic adjustment of the water replenishment volume.

[0029] Typically, the PLC cabinet 12 serves as the control center for the entire device, located on one side of the device or in a convenient position for operation. The PLC cabinet 12 receives signals from devices such as the material moisture detector 8 and the material flow detection switch 13, performs calculations and judgments through its internal processor, and then controls the opening and closing of the solenoid valve 11 to achieve precise control of the water replenishment amount.

[0030] The material flow detection switch 13 is installed on the belt conveyor 7 to detect whether the material is flowing. Once a material flow signal is detected, the signal is transmitted to the PLC cabinet 12 to trigger the water replenishment action. The belt scale 14 is installed below or to the side of the belt conveyor 7 to monitor the conveying capacity of the belt conveyor 7 in real time, providing important data for water replenishment calculation.

[0031] Wear-resistant liners are laid on the surfaces of the enclosed water supply tank 2 and the guide plate 5 that come into contact with the material to enhance the wear resistance and service life of the device. Inspection holes are located in the upper middle part of the tank wall to facilitate daily maintenance and repair by operators.

[0032] The negative pressure vent is located at the top of the sealed water replenishment chamber 2, and is open to the atmosphere to expel gas from the chamber. Dust suppression filter bags are wrapped around the vent to ensure that the expelled gas is dust-free after filtration, thus preventing environmental pollution.

[0033] The working process of the device is as follows:

[0034] The device starts when the material flow detection switch 13 is activated and the material moisture content measured by the material moisture detector 8 is lower than the preset calibration value.

[0035] Specifically, the device startup conditions include:

[0036] One of the material flow detection switches 13 has an action signal;

[0037] Secondly, the moisture content of the material measured by the material moisture analyzer 8 was lower than the calibration value.

[0038] The amount of water to be replenished is determined by the following expression:

[0039] c = Q × (ab) × 1000

[0040] Among them, the belt scale 14 displays the conveying capacity Q (t / h) of belt conveyor 7, the calibrated moisture content a, the measured moisture content b, and the water replenishment c (L / h).

[0041] The belt scale 14 measures the conveying capacity of the belt conveyor 7 in real time, and accurately calculates the required water replenishment by combining the calibrated moisture content with the actual moisture content. The closed water replenishment chamber 2 is connected to the funnel of the belt conveyor 7 via a flexible connection. The material is evenly sprayed with water in the water replenishment chamber. At the same time, the negative pressure vent and dust suppression filter bag at the top ensure that the discharged gas is dust-free.

[0042] The intelligence of this system is reflected in its automatic control function. Through the PLC cabinet 12 and the solenoid valve 11, the system can automatically identify the presence and humidity of the material, and automatically control the opening and closing of the solenoid valve 11 according to the identification results, without the need for manual intervention throughout the process.

[0043] Compared to traditional dust removal technologies, this invention addresses the issue from the perspective of material moisture content by uniformly humidifying the material through a closed water replenishment chamber 2, thereby reducing dust generation. In a bulk material conveying system, this device only needs to be installed at the first-stage transfer point, eliminating the need for large-scale dust removal equipment at all downstream transfer points. This reduces system costs, improves environmental hygiene, and reduces air pollution.

Claims

1. A dust suppression and humidification device, characterized in that, include: Belt conveyor, enclosed water supply tank, flexible connection seal, nozzle, guide plate, material moisture detector, filter, solenoid valve, PLC cabinet, material flow detection switch and belt scale; The conveyor belt head is equipped with a closed water supply chamber, and the top of the closed water supply chamber is tightly connected to the funnel by a flexible connection; the closed water supply chamber is equipped with nozzles and guide plates to ensure uniform water supply. The material moisture detector is installed next to the belt conveyor and connected to the PLC cabinet to monitor the material moisture in real time. The belt scale is installed below the belt conveyor to measure the material flow rate. The solenoid valve and filter are installed between the water source and the water replenishment tank; The PLC cabinet receives signals from the material moisture detector, belt scale and material flow detection switch, processes and judges the data through the internal processor, and then controls the opening and closing of the solenoid valve to realize the automatic adjustment of water replenishment.

2. The dust suppression and humidification device according to claim 1, characterized in that, To achieve automatic adjustment of water replenishment, the following steps are taken: Calculate the water replenishment amount, using the following expression: c = Q × (ab) × 1000 Where Q(t / h) is the conveyor capacity of the belt conveyor as shown by the belt scale, a is the calibrated moisture content, b is the measured moisture content, and c is the water replenishment amount (L / h).

3. The dust suppression and humidification device according to claim 1, characterized in that, The closed water replenishment chamber includes: a negative pressure vent hole provided at the top of the closed water replenishment chamber.

4. The dust suppression and humidification device according to claim 1, characterized in that, The guide plate is configured with a conical structure.

5. The dust suppression and humidification device according to claim 1, characterized in that, The guide plate includes a wear-resistant liner arranged on the surface that contacts the material.

6. The dust suppression and humidification device according to claim 1, characterized in that, An inspection hole is provided in the upper part of the closed water replenishment tank.

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