Operation box for remote IO bin of bag-type dust collector

Abstract

The operation box comprises an operation box body, an opening is formed in one side of the operation box body, a sealing cover is hinged to the opening, a fixing box is fixed to one side of the operation box body, a limiting mechanism is arranged in the fixing box, and the limiting mechanism is connected with the sealing cover. A plurality of disc valve change-over switches are installed on the sealing cover at equal intervals, a touch screen is installed on the sealing cover, and three wire grooves, a remote IO module and an electromagnetic valve change-over terminal strip are arranged in the operation box body at equal intervals. According to the utility model, through the arrangement of the remote IO module, the point locations of the PLC / DCS system are reduced by about 60%, the costs of cables, bridges, construction and the like are greatly reduced, the maintenance is convenient, through the arrangement of the conversion terminal, the PLC / DCS system can be connected to an operation box, multi-core wire construction is adopted, the cost of construction materials is reduced, and through the touch screen and the change-over switch, the field operation and system data observation are facilitated. And debugging, overhauling and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bag filters for submerged arc furnaces, in particular to an operation box for a remote IO chamber of a bag filter. Background Technique

[0002] With the rapid progress of industrial production, the problem of environmental protection has become increasingly prominent. The control points of large bag filters have increased accordingly. Generally, a large bag filter for a submerged arc furnace is composed of 22 - 24 chambers. Each chamber has 4 - 6 disc valves and one dust detection (1 AI signal). Each disc valve is controlled by a cylinder (1 DO control signal and 2 DI signal feedbacks). The traditional control system of large bag filters has the following problems:

[0003] Problem 1: When the control points of the dust collector are directly hard - wired to the PLC / DCS control system, the PLC / DCS control system has many points, many cables, high costs, and is not convenient for maintenance.

[0004] Problem 2: When the control points of the dust collector communicate with the PLC / DCS control system directly through a remote IO module, a communication line determines everything about the operation of the equipment, which is unreliable and unstable.

[0005] Problem 3: The dust collector is controlled by a host computer without a field operation box, which is not convenient for daily inspection and maintenance.

[0006] Therefore, we propose an operation box for a remote IO chamber of a bag filter to solve the above problems. Content of the Utility Model

[0007] The purpose of the utility model is to solve the defects existing in the prior art, and to propose an operation box for a remote IO chamber of a bag filter.

[0008] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0009] An operation box for a remote IO chamber of a bag filter includes an operation box body. One side of the operation box body is provided with an opening, and a cover is hinged at the opening. A fixed box is fixed on one side of the operation box body. A limiting mechanism is arranged in the fixed box and is connected to the cover. A plurality of disc valve change - over switches are equidistantly installed on the cover. A touch screen is installed on the cover. Three wire grooves, a remote IO module and a solenoid valve adapter terminal row are equidistantly arranged in the operation box body.

[0010] Preferably, the limiting mechanism includes a moving rod penetrating one side of the fixed box, a pull plate is fixed to one end of the moving rod, a moving block is fixed to the other end of the moving rod, two insertion rods are fixed to one end of the moving block, one end of the insertion rod passes through the side wall of the fixed box and is inserted into one side of the cover, one side of the moving block is connected to two springs, and one end of the spring is connected to one side inside the fixed box.

[0011] Preferably, a peripheral side wall of the pull plate is coated with a rubber layer.

[0012] Preferably, support columns are fixed to the four corners of the lower end of the operation box body, and cushion blocks are fixed to the lower ends of the support columns.

[0013] Preferably, a plurality of heat dissipation holes are provided at equal intervals on both sides of the operation box body.

[0014] Preferably, a handle is fixed to one side of the cover.

[0015] The utility model reduces the number of PLC / DCS system points by about 60% through the setting of remote IO modules, greatly reduces the costs of cables, bridges, construction, etc., and facilitates maintenance. Through the setting of transfer terminals, the PLC / DCS system can be connected to the operation box, and multi-core wire construction is adopted to reduce the cost of construction materials. Through the touch screen and switching switch, it is convenient to operate on site and observe system data, which is convenient for debugging, inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the external structure diagram of the utility model;

[0017] Figure 2 It is the internal structure diagram of the utility model;

[0018] Figure 3 This is a structural diagram of the limiting mechanism of the utility model.

[0019] In the figure: 1 pull plate, 2 operation box body, 3 heat dissipation hole, 4 fixing box, 5 handle, 6 support column, 7 cover, 8 disk valve switching switch, 9 touch screen, 10 wire slot, 11 remote IO module, 12 solenoid valve transfer terminal block, 13 moving block, 14 plug rod, 15 moving rod, 16 spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figures 1-3, An operation box for the remote IO chamber of a bag filter, comprising an operation box body 2. An opening is provided on one side of the operation box body 2, and a cover 7 is hinged at the opening. A fixed box 4 is fixed on one side of the operation box body 2. A limiting mechanism is arranged in the fixed box 4. The limiting mechanism includes a moving rod 15 penetrating through one side of the fixed box 4. One end of the moving rod 15 is fixed with a pulling plate 1, and the other end of the moving rod 15 is fixed with a moving block 13. One end of the moving block 13 is fixed with two inserting rods 14. One end of the inserting rod 14 penetrates through the side wall of the fixed box 4 and is inserted into one side of the cover 7. Two springs 16 are connected to one side of the moving block 13, and one end of the spring 16 is connected to one side inside the fixed box 4. When it is necessary to open the cover 7, pull the pulling plate 1 to one side to drive the moving rod 15 to move, and then drive the inserting rod 14 to move out from one side of the cover 7 to achieve loosening, and then open the cover. When it is necessary to close the cover 7, pull the pulling plate 1. After closing the cover 7 and releasing the pulling plate 1, under the reset drive of the spring 16, the inserting rod 14 is inserted into the cover 7 to ensure the firm fixation of the cover.

[0022] And the limiting mechanism is connected to the cover 7. A plurality of disk valve changeover switches 8 are equidistantly installed on the cover 7, and a touch screen 9 is installed on the cover 7. Three wire grooves 10, a remote IO module 11, and a solenoid valve adapter terminal block 12 are equidistantly arranged in the operation box body 2. The remote IO module 11 can realize the transmission of a large amount of data through a communication line. The solenoid valve is directly controlled by the PLC / DCS system without passing through the remote IO module, ensuring the stability and reliability of the system.

[0023] A rubber layer is coated on the peripheral side wall of the pulling plate 1. Support columns 6 are fixed at the four corners of the lower end of the operation box body 2, and a cushion block is fixed at the lower end of the support column 6. A plurality of heat dissipation holes 3 are equidistantly arranged on both sides of the operation box body 2. A handle 5 is fixed on one side of the cover 7 for convenient operation.

[0024] In the present utility model, we set a remote IO operation box at the site of the large bag filter:

[0025] Purpose 1: Aiming at the above "Problem 1": A remote IO module is arranged in the operation box to collect on-site signals such as cylinder magnetic switches and dust meter signals, and is connected to the PLC / DCS through PN or DP bus communication. The number of PLC / DCS points is reduced by about 60%, and the costs of cables, cable trays, construction, etc. are greatly reduced, which is convenient for maintenance;

[0026] Purpose 2: Aiming at the above "Problem 2": A cylinder solenoid valve adapter terminal is arranged in the operation box. The solenoid valve control line is connected to the PLC / DCS by a multi-core cable, and the number of control cables is reduced. The normal operation of the system is not affected by communication failures or instabilities.

[0027] Purpose 3: Aiming at the above "Problem 3", a switch for switching the operation of the disc valve is set on the operation box panel to achieve remote and local operation of the disc. A touch screen is set on the operation box panel to display the dust value and the on / off status of the disc valve. The remote / local operation of the disc valve is realized, which is convenient for daily maintenance.

[0028] The remote IO module collects signals and communicates and uploads them to the PLC / DCS control system. The panel touch screen displays and records the collected values; the disc valve realizes the conversion operation of the remote / stop / local control mode through the switching switch. A remote IO module is set in the operation box. Through a communication line, a large amount of data can be transmitted. The solenoid valve is directly controlled by the PLC / DCS system without passing through the remote IO module, ensuring the stability and reliability of the system.

[0029] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An operating box for a remote IO chamber of a bag filter, comprising an operating box body (2), characterized in that, One side of the operation box body (2) is provided with an opening, a cover (7) is hinged at the opening, a fixed box (4) is fixed on one side of the operation box body (2), a limiting mechanism is arranged in the fixed box (4), and the limiting mechanism is connected with the cover (7). A plurality of disc valve switching switches (8) are equidistantly installed on the cover (7), a touch screen (9) is installed on the cover (7), and three wire grooves (10), a remote IO module (11) and a solenoid valve adapter terminal block (12) are equidistantly arranged in the operation box body (2).

2. The operating box for the remote IO chamber of the bag filter according to claim 1, characterized in that: The limiting mechanism includes a moving rod (15) penetrating through one side of the fixed box (4). One end of the moving rod (15) is fixed with a pulling plate (1), the other end of the moving rod (15) is fixed with a moving block (13), one end of the moving block (13) is fixed with two inserting rods (14), one end of the inserting rods (14) penetrates through the side wall of the fixed box (4) and is inserted into one side of the cover (7), and two springs (16) are connected to one side of the moving block (13). One end of the springs (16) is connected to one side inside the fixed box (4).

3. The operating box for the remote IO chamber of the bag filter according to claim 2, characterized in that: A rubber layer is coated on the peripheral side wall of the pulling plate (1).

4. The operating box for the remote IO chamber of the bag filter according to claim 1, characterized in that: Support columns (6) are fixed at the four corners of the lower end of the operation box body (2), and cushion blocks are fixed at the lower ends of the support columns (6).

5. The operating box for the remote IO chamber of the bag filter according to claim 1, characterized in that: A plurality of heat dissipation holes (3) are equidistantly arranged on both sides of the operation box body (2).

6. The operating box for the remote IO chamber of a bag filter, as claimed in claim 1, is characterized in that: A handle (5) is fixed on one side of the cover (7).

Images