Flying dust treatment system for stem feeding process section

Abstract

The utility model relates to the technical field, and provides a raising dust treatment system for a tobacco stem feeding process section, the raising dust treatment system comprises a water pipe, a filter, a flow regulating valve, an atomizing nozzle, a material detector and a PLC, the water pipe is arranged above tobacco stem conveying equipment, and the filter, the flow regulating valve and the atomizing nozzle are sequentially arranged on the water pipe; the flow regulating valve is arranged on the tobacco stem conveying equipment, the filter is arranged on the flow regulating valve, at least one atomizing nozzle is arranged, the filter is close to the water inlet end of the water pipe, the water inlet end is connected with a water source, the material detector is arranged on the tobacco stem conveying equipment and used for detecting tobacco stems, and the PLC is electrically connected with the material detector and the flow regulating valve. The flow of the flow adjusting valve can be adjusted through the PLC, so that the atomization amount of the atomizing nozzle is controlled, the device is suitable for dust raising scenes of different amounts, whether tobacco stems are conveyed or not is detected through the material detector, and automatic opening and closing are achieved; the on-site environment can be effectively improved, the protection effect on the health of personnel is achieved, and the practical value is high.

Description

Technical Field

[0001] The present application belongs to the technical field of silk-making environment management, and more specifically, to a dust control system for the stem throwing process section. Background Art

[0002] The tobacco stems on the silk production line have low moisture content, dry surface and contain a lot of smoke dust. During the stem feeding production process, a large amount of undampened tobacco stems are transported into the cabinet via belts, vibrating troughs or wind power, generating a large amount of dust along the path and surrounding areas, which has an adverse impact on the on-site environment and personnel health. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a dust control system for the tobacco stem feeding process to solve the technical problem in the prior art that a large amount of dust generated during the tobacco stem transportation process has an adverse effect on the environment and personnel health.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a dust control system for the tobacco stem throwing process section, including: a water pipe, a filter, a flow regulating valve, an atomizing nozzle, a material detector and a PLC controller, the water pipe is arranged above the tobacco stem conveying equipment, and the water pipe is provided with a filter, a flow regulating valve and an atomizing nozzle in sequence, and at least one atomizing nozzle is provided, the filter is close to the water inlet end of the water pipe, and the water inlet end is connected to a water source, the material detector is arranged on the tobacco stem conveying equipment and is used to detect tobacco stems, and the PLC controller is electrically connected to the material detector and the flow regulating valve.

[0005] In one embodiment, a pressure regulating valve is provided on the water pipe between the water inlet and the filter.

[0006] In one embodiment, a check valve is provided on the water pipe between the filter and the flow regulating valve.

[0007] In one embodiment, the atomizing nozzle is arranged on the water pipe through a three-way joint, a drain pipe is installed on the three-way joint, a pressure relief valve is provided on the drain pipe, and the pressure relief valve is electrically connected to the PLC controller.

[0008] In one embodiment, the water pipe is a food-grade water pipe, the water from the water source is drinking water and the chloride ion content in the water is ≤25ppm.

[0009] In one embodiment, the material detector is a diffuse reflection photoelectric detector.

[0010] In one embodiment, the flow regulating valve is a diaphragm valve.

[0011] In one embodiment, the pressure relief valve is a solenoid valve.

[0012] The beneficial effects of the dust control system for the tobacco stem throwing process section provided by the present application are: the dust control system has a simple structure, is easy to install, has a wide range of applications, and is safe and reliable; the flow rate of the flow regulating valve can be adjusted by the PLC controller, thereby controlling the atomization amount of the atomizing nozzle, which is suitable for scenes with different amounts of dust, and the material detector can detect whether tobacco stems are being transported to achieve automatic opening and closing; it can effectively improve the on-site environment, protect the health of personnel, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 A simplified structural schematic diagram of a dust control system for the stem throwing process section provided in an embodiment of the present application.

[0015] Among them, the reference numerals in the figure are:

[0016] 1. Water pipe; 2. Filter; 3. Flow control valve; 4. Atomizing nozzle; 5. Material detector; 6. PLC controller; 61. Analog control module; 62. Digital control module; 7. Pressure regulating valve; 8. Check valve; 9. Three-way connector; 10. Drain pipe; 11. Pressure relief valve; 12. Drain ditch. DETAILED DESCRIPTION

[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0018] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0019] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] like Figure 1 As shown, a dust control system for the tobacco stem throwing process section provided by an embodiment of the present application is now described. The dust control system for the tobacco stem throwing process section includes: a water pipe 1, a filter 2, a flow regulating valve 3, an atomizing nozzle 4, a material detector 5 and a PLC controller 6. Among them, the water pipe 1 is arranged above the tobacco stem conveying equipment, and the tobacco stem conveying equipment is an existing belt conveyor, a vibrating trough or an air separation device. A filter 2, a flow regulating valve 3 and an atomizing nozzle 4 are sequentially arranged on the water pipe 1. The filter 2 is used to filter the water in the water pipe 1, and the flow regulating valve 3 is used to adjust the water flow, thereby controlling the atomization amount of the atomizing nozzle 4. At least one atomizing nozzle 4 is provided, and the atomizing nozzle 4 is used to form a water mist, and the water mist is used to reduce the amount of dust in the environment. The atomizing nozzle 4 is arranged above the belt conveyor or the vibrating trough, or is arranged near the discharge port of the air separation equipment. Among them, the water inlet end of the water pipe 1 is connected to the water source, and the water source is the tap water system in the factory, and a purifier is provided to make the water reach the standard that can be directly drunk. The filter 2 is arranged near the water inlet end of the water pipe 1 to further filter the water. The material detector 5 is arranged on the tobacco stem conveying device and is used to detect the tobacco stems. The PLC controller 6 is electrically connected to the material detector 5 and the flow regulating valve 3. When the material detector 5 detects that tobacco stems are being conveyed, the PLC controller 6 controls the flow regulating valve 3 to open so that the atomizing nozzle 4 sprays; when the material detector 5 does not detect tobacco stems, it means that the tobacco stems are conveyed or not conveyed at this time, and the PLC controller 6 controls the flow regulating valve 3 to close.

[0022] In this embodiment, a pressure regulating valve 7 is provided on the water pipe 1 between the water inlet and the filter 2, which is used to regulate and balance the water pipe 1. In this embodiment, a check valve 8 is provided on the water pipe 1 between the filter 2 and the flow regulating valve 3, and the check valve 8 prevents the water in the water pipe 1 from flowing back.

[0023] Specifically, the atomizing nozzle 4 is arranged on the water pipe 1 through a three-way joint 9, a drain pipe 10 is installed on the three-way joint 9, a pressure relief valve 11 is arranged on the drain pipe 10, the pressure relief valve 11 is electrically connected to the PLC controller 6, and the drain pipe 10 extends to the drainage ditch 12. Since the water pipe 1 has a certain length, there is residual pressure in the water pipe 1, which will cause the atomizing nozzle 4 to continue to spray water mist for a certain period of time. In order to avoid this phenomenon, when the material detector 5 detects that the tobacco stem transportation is completed, the PLC controller 6 controls the pressure relief valve 11 to open, and the remaining water in the water pipe 1 is quickly discharged from the drain pipe 10, which plays a role of rapid pressure relief, so that the atomizing nozzle no longer sprays water mist, which effectively prevents the water mist from accumulating water on the tobacco stem transportation equipment and avoids the adverse effects of the accumulated water on the tobacco stem transportation equipment. The PLC controller 6 is a prior art, which at least includes an analog control module 61 and a digital control module 62, wherein the analog control module 61 is electrically connected to the flow regulating valve 3, and the digital control module 62 is electrically connected to the pressure relief valve 11.

[0024] In this embodiment, considering that the water mist acts on the top of the tobacco stem material, according to the production process requirements, the water in the water pipe 1, the water pipe 1 and each valve are all of food grade standard, the water pipe 1 is a food grade austenitic stainless steel water pipe 1 or a food grade hose, the water source is drinking water and the chloride ion content in the water is ≤25ppm. Among them, the material detector 5 is a diffuse reflection photoelectric detector, which is installed above or on the side of the material channel of the tobacco stem conveying equipment, and is used to detect tobacco stem material information and send it to the PLC controller 6. The flow regulating valve 3 is a diaphragm valve, and the flow regulating valve 3 can be installed on a steam cabinet, a pipe cabinet, a mounting frame or a tobacco stem conveying equipment, and is controlled by an analog control module 61. The atomizing nozzle 4 adopts a manually adjustable structure, and the atomization effect can be adjusted manually. The pressure relief valve 11 is a solenoid valve, which is opened and closed by a digital control module 62 controller.

[0025] The working principle of the dust control system is as follows: the material detector 5 collects material information and sends it to the PLC controller 6. After receiving the signal, the PLC controller 6 sends a control signal to the analog control module 61 (AO), and drives the flow control valve 3 to open through the I / P converter, so that the atomizing nozzle 4 sprays fine water mist, effectively reducing the amount of dust in the environment.

[0026] After the material on the material conveying channel is empty, in order to avoid water accumulation on the belt conveyor or the vibration trough, the flow regulating valve 3 needs to be closed in time. At this time, the material detector 5 sends the material-free information to the PLC controller 6, and the PLC controller 6 stops the output of the analog control module 61 and closes the flow regulating valve 3. However, due to the effect of the atomizing nozzle 4, there is residual pressure in the section of the water pipe 1 from the flow regulating valve 3 to the atomizing nozzle 4, which will cause the atomizing nozzle 4 to continue to spray water mist for a period of time (the time depends on the length of the water pipe 1 and the spray size of the atomizing nozzle 4). To avoid this phenomenon, the PLC controller 6 stops the output of the analog control module 61 and sends a signal to the digital output module to open the pressure relief valve 11, so that the remaining water in the water pipe 1 quickly flows away from the drain pipe 10, which plays a role in rapid pressure relief.

[0027] The dust control system is flexible in configuration. Its control can be realized by an independent PLC controller 6, or it can be integrated into the on-site wire-controlled PLC system to save costs. The material detector 5 and the atomizing nozzle 4 are easy to install. They can be installed by a dedicated mounting frame or by using the equipment frame nearby. The flow control valve 3 and the atomizing nozzle 4 are flexible in layout and configuration, and can be one-to-one or one-to-many according to the actual situation on site. The pressure relief three-way connector 9, the pressure relief valve 11 and the atomizing nozzle 4 need to correspond one to one and be used in conjunction. In addition, the control point of the digital control module 62 (one module may contain one or more control points) corresponds one to one with the pressure relief valve 11, and the output channel of the analog control module 61 (one module may contain one or more output channels) corresponds one to one with the flow control valve 3.

[0028] During operation, the dust control system may have a certain surface wetting effect on the tobacco stems on the path while controlling dust. However, since the tobacco stems immediately enter the water washing and moistening stages after being fed, the moisture quality control of the tobacco stem products will not increase uncontrollable factors and will not cause adverse effects.

[0029] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A dust control system for the stalk throwing process section, characterized in that: include: A water pipe (1), a filter (2), a flow regulating valve (3), an atomizing nozzle (4), a material detector (5) and a PLC controller (6), wherein the water pipe (1) is arranged above a tobacco stem conveying device, the water pipe (1) is provided with a filter (2), a flow regulating valve (3) and an atomizing nozzle (4) in sequence, at least one atomizing nozzle (4) is provided, the filter (2) is close to the water inlet end of the water pipe (1), and the water inlet end is connected to a water source, the material detector (5) is provided on the tobacco stem conveying device and is used to detect tobacco stems, and the PLC controller (6) is electrically connected to the material detector (5) and the flow regulating valve (3).

2. The dust control system for the stem throwing process section according to claim 1 is characterized in that: A pressure regulating valve (7) is provided on the water pipe (1) between the water inlet end and the filter (2).

3. The dust control system for the stem throwing process section according to claim 2 is characterized in that: A check valve (8) is provided on the water pipe (1) between the filter (2) and the flow regulating valve (3).

4. The dust control system for the stem throwing process section according to claim 3 is characterized in that: The atomizing nozzle (4) is arranged on the water pipe (1) via a three-way joint (9), a drain pipe (10) is installed on the three-way joint (9), a pressure relief valve (11) is provided on the drain pipe (10), and the pressure relief valve (11) is electrically connected to the PLC controller (6).

5. The dust control system for the stem throwing process section according to any one of claims 1 to 4, characterized in that: The water pipe (1) is a food-grade water pipe (1), the water from the water source is drinking water and the chloride ion content in the water is ≤25 ppm.

6. The dust control system for the stem throwing process section according to claim 5 is characterized in that: The material detector (5) is a diffuse reflection type photoelectric detector.

7. The dust control system for the stem throwing process section according to claim 5 is characterized in that: The flow regulating valve (3) is a diaphragm valve.

8. The dust control system for the stem throwing process section according to claim 4 is characterized in that: The pressure relief valve (11) is a solenoid valve.

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