Cloth bag breakage detection system for cloth bag dust collector

Abstract

The utility model discloses a bag breakage detection system for a bag-type dust collector, which comprises a bag-type dust collector lifting valve, a bag-type dust collector back flushing valve, a bag-type dust collector PLC (Programmable Logic Controller), a plurality of particulate matter dust-containing online detectors and a DCS (Distributed Control System), each particulate matter dust-containing online detector is electrically connected with the DCS system, the lifting valve and the blowback valve are respectively in control connection with the PLC, and the PLC is electrically connected with the DCS system; according to the utility model, the opening frequency of the cloth bag bin is reduced, experience judgment is reduced, and automatic and standardized operation is easy to realize, so that the maintenance efficiency of the cloth bag is improved, and the safety and environmental protection problems caused by damage of the cloth bag are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust removal equipment, in particular to a bag damage detection system for a bag dust collector. Background Art

[0002] At present, domestic copper smelting enterprises have high production efficiency and large scale, and the amount of environmentally friendly flue gas generated is also large. After the collected flue gas passes through the bag dust removal, it enters the subsequent fan, desulfurization, and denitrification processes. If the bag is damaged, it will at least have a process impact on the subsequent desulfurization and denitrification processes, and at worst cause the dust content of the tail exhaust particulate matter to exceed the standard, which brings great pressure to the company's environmental protection.

[0003] The traditional method of checking for leaks in dust collector bags is for workers to wear air respirators, lower the bag lift valve to stop backblowing, and manually pull out the bags and ridges of the entire bag filter in turn to see if the bags are damaged.

[0004] The traditional method is labor-intensive and has certain hidden dangers and risks, which can easily cause harm to operators. Therefore, a bag-type dust collector bag damage detection system is proposed to address the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a bag breakage detection system for a bag dust collector in view of the above situation. The application of the present invention reduces the number of times the bag chamber is opened, reduces the need for empirical judgment, and is easy to realize automated and standardized operation.

[0006] The specific solution of the utility model is: a bag breakage detection system for a bag dust collector, including a bag dust collector lifting valve, a bag dust collector back-blowing valve, a bag dust collector PLC, a number of particulate dust online detectors and a DCS system. The particulate dust online detectors are respectively arranged at the corresponding bag outlets, and each particulate dust online detector is electrically connected to the DCS system. The lifting valve and the back-blowing valve are respectively connected to the PLC control, and the PLC is electrically connected to the DCS system.

[0007] Furthermore, the back-blowing valve in the present invention is a solenoid valve.

[0008] Furthermore, the particulate matter dust online detector described in the present invention is placed at the corresponding bag outlet through a bracket, and is installed horizontally and perpendicularly to the corresponding bag outlet.

[0009] Furthermore, the DCS system in the present invention is also provided with a voice broadcast system, which is electrically connected to the DCS system and voice broadcasts the bag damage signal emitted by the DCS system.

[0010] The application of the utility model reduces the opening times of cloth bag chamber, reduces experience judgment, is easy to realize automatic and standardized operation, thereby improving the efficiency of cloth bag maintenance and reducing the safety and environmental protection problems caused by cloth bag damage.

[0011] The application of the utility model makes cloth bag damage detection more rapid, reduces the dust in the remaining undamaged cloth bags after cloth bag damage, and enhances the service life of the cloth bags. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the overall module structure schematic diagram of the utility model;

[0013] Figure 2 is an embodiment state schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] The technical scheme of the utility model will be described clearly and completely in combination with the drawings of the utility model. Obviously, the described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model. In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the utility model product is used, which is only for the convenience of describing the utility model or simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed or operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0015] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0016] Referring to Figure 1The utility model relates to a cloth bag dust collector cloth bag breakage detection system, including cloth bag dust collector poppet valve, cloth bag dust collector blowback valve, cloth bag dust collector PLC, a plurality of particulate matter dust online detector and DCS system, further, the blowback valve in the utility model is solenoid valve, the particulate matter dust online detector is set respectively at corresponding cloth bag outlet, further, the particulate matter dust online detector in the utility model is placed at corresponding cloth bag outlet through support, and with corresponding cloth bag outlet transverse perpendicular installation, every particulate matter dust online detector is electrically connected with the DCS system, the poppet valve, blowback valve is connected with the PLC control respectively, the PLC is electrically connected with DCS system.

[0017] Further, the DCS system in the embodiment is further provided with a voice broadcast system, the voice broadcast system is electrically connected with the DCS system and carries out voice broadcast to the cloth bag breakage signal sent by the DCS system.

[0018] The utility model discloses a cloth bag dust collector poppet valve, cloth bag dust collector blowback solenoid valve, cloth bag dust collector PLC, the particulate matter dust online detector of each cloth bag outlet, DCS system etc.. The running of whole poppet valve and blowback solenoid valve is controlled by PLC according to blowback time and interval time, but the number of operation of poppet valve falling gas chamber and solenoid valve is transmitted to DCS system by DP line PLC, and the particulate matter dust online detector at cloth bag outlet is directly connected into DCS system.

[0019] Reference Figure 2 It is an embodiment control block diagram of the utility model.

[0020] When all poppet valves and blowback solenoid valves of cloth bag dust collector do not act, the data of cloth bag outlet dust is read by DCS system at this time, and this time is marked as data 0.

[0021] When the poppet valve of first gas chamber of cloth bag dust collector falls (herein the first gas chamber and corresponding cloth bag outlet are taken as examples), and all blowback valves do not run, the data of cloth bag outlet dust is read by DCS system at this time, and this time is marked as data 1. Data 1-data 0>5, and DCS system pops up " the cloth bag of 1st gas chamber appears breakage ".

[0022] When the first gas chamber of cloth bag dust collector falls, and 1# solenoid valve runs after 3S, the data of cloth bag outlet dust is read by DCS system at this time, and this time is marked as data 1.1. Data 1.1-data 0>5, and DCS system pops up " the cloth bag under 1# blowback pipe of 1st gas chamber appears breakage ", and sends voice broadcast signal to prompt staff, and the cloth bag appears breakage, and staff immediately carries out maintenance disposal.

[0023] Other breakage detection refers to the principle of execution above.

[0024] In the utility model, according to the dust content of the particles at the bag outlet before and after the action of the lift valve and the lift bag, whether the bag under the lift valve appears damage is judged.

[0025] Meanwhile, according to the dust content of the particles at the bag outlet before and after the action of the back blowing valve, whether the bag under the back blowing line appears damage is judged.

[0026] When the dust content at the bag outlet before and after the action of the lift valve appears fluctuation greater than 5ppm, it can be determined that the bag in the chamber appears damage, at this time, the DCS system pops up '' the bag in the # chamber appears damage ''. When the dust content of the particles at the bag outlet before and after the action of the back blowing valve appears fluctuation greater than 5ppm, it can be determined that the bag under the back blowing pipe appears damage, at this time, the DCS system pops up '' the bag under the # back blowing pipe in the # chamber appears damage ''.

[0027] The application of the utility model reduces the opening times of the bag chamber, reduces experience judgment, is easy to realize automatic and standardized operation, thereby improving the efficiency of bag maintenance and reducing the safety and environmental protection problems caused by bag damage.

[0028] The application of the utility model makes bag damage detection more rapid, reduces the dust content in the remaining undamaged bags after the bag damage, and enhances the service life of the bag.

Claims

1. A bag filter bag damage detection system, characterized by: It includes a bag dust collector lifting valve, a bag dust collector back-blowing valve, a bag dust collector PLC, several particulate matter dust online detectors and a DCS system. The particulate matter dust online detectors are respectively arranged at the corresponding bag outlets. Each particulate matter dust online detector is electrically connected to the DCS system. The lifting valve and back-blowing valve are respectively connected to the PLC control, and the PLC is electrically connected to the DCS system.

2. The bag breakage detection system for a bag filter according to claim 1, characterized in that: The back-blowing valve is a solenoid valve.

3. The bag breakage detection system for a bag filter according to claim 1, characterized in that: The particulate matter dust online detector is placed at the corresponding bag outlet through a bracket and is installed horizontally and vertically to the corresponding bag outlet.

4. The bag breakage detection system for a bag filter according to claim 1, characterized in that: A voice broadcast system is also provided corresponding to the DCS system. The voice broadcast system is electrically connected to the DCS system and voice broadcasts the bag damage signal emitted by the DCS system.

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