Dry quenching belt chute flap valve switch limit control device
By adopting a U-shaped electromagnetic limit switch and integrated cable design in the flap valve of the dry quenching belt chute, the failure problem of mechanical limit switches in harsh environments was solved, and stable transmission of limit signals and reliable operation of the device were achieved.
Patent Information
- Application Number
- CN202520562603.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The mechanical limit switches of the existing dry quenching coke conveyor chute flap valve are prone to jamming, corrosion and short circuit failure in harsh environments, which leads to the failure of the limit signal and affects the reliability of remote control.
A U-shaped electromagnetic limit switch is used to replace the mechanical limit switch, and the cable wiring is integrated inside the switch. Combined with the electro-hydraulic actuator and control system, stable control of the flap valve is achieved.
It effectively prevents wear and short-circuit faults of limit switches, improves the reliability of limit signals and the stability of the system, and simplifies the installation and maintenance process.
Smart Images
Figure CN223804271U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the chute flap valve switch limiting technical field, concretely relates to a dry quenching belt chute flap valve switch limiting control device. BACKGROUND
[0002] In order to prevent the failure of a single belt, the normal conveying of coke is affected, and the coke conveying belt is generally designed redundantly: one belt runs, and the other belt is in standby state, at this time, the double fork chute flap valve is used for belt conveying switching, the double fork chute flap valve is controlled by using electro-hydraulic push rod combined with on-site limiting switch in place signal, and coke is switched to the specified belt conveyor as required.
[0003] The chute flap valve switch limiting in place of the dry quenching belt system generally adopts mechanical limiting switch, but due to a large amount of coke powder in the field working condition, the environment is bad, and the limiting blockage, limiting file corrosion and limiting internal wiring terminal into coke powder to cause short circuit often occur, which causes the limiting switch in place signal to be unable to use, directly causing the central control room operator to be unable to remotely control the flap valve. UTILITY MODEL CONTENTS
[0004] The utility model discloses a dry quenching belt chute flap valve switch limiting control device.
[0005] To solve the above technical problems, the utility model adopts the technical scheme that:
[0006] A dry quenching belt chute flap valve switch limiting control device, comprising an electro-hydraulic push rod, a flap, a turnover shaft, a limiting baffle, two fixed frames, two U-shaped electromagnetic limiting switches and a control system.
[0007] One end of the flap is fixedly connected with the turnover shaft, and the other end of the flap is hingedly connected with the telescopic end of the electro-hydraulic push rod, the lower end of the limiting baffle is vertically fixedly arranged at the middle part of the flap, the two fixed frames are arranged on the arc track above the flap with the turnover shaft as the center, the U-shaped mouths of the two U-shaped electromagnetic limiting switches face downwards and are fixedly arranged at the front ends of the two fixed frames respectively, and the upper end of the limiting baffle can pass through the U-shaped mouth of the U-shaped electromagnetic limiting switch.
[0008] The control system is electrically connected with the electro-hydraulic push rod, the U-shaped electromagnetic limiting switch, the belt conveyor and the standby belt conveyor respectively.
[0009] Further, the U-shaped electromagnetic limiting switch adopts an integrated switch, and the cable wiring is integrated in the switch.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] 1. The utility model discloses a U-shaped electromagnetic limit switch replaces mechanical limit, and this limit mode almost has no mechanical wear, and can effectively prevent the phenomenon of limit switch block resistance and corrosion due to coke powder by relying on internal magnetic switch work.
[0012] 2. The utility model discloses a U-shaped electromagnetic limit switch adopts integrated switch, and cable wiring is integrated in the switch inside, does not need external circuit, and the airtightness is good, therefore can avoid coke powder and enter and cause short circuit fault.
[0013] 3. The utility model discloses a U-shaped electromagnetic limit switch is stable in operation, saves the space, and good durability, and installation is convenient, and maintenance is convenient. DRAWINGS
[0014] Fig. 1 It is the structural schematic diagram of the utility model;
[0015] Fig. 2 It is the electrical connection schematic diagram of the utility model;
[0016] In the drawing: 1, electro-hydraulic push rod; 2, flap; 3, turnover shaft; 4, limit baffle; 5, fixed frame; 6, U-shaped electromagnetic limit switch; 7, U-shaped mouth. DETAILED DESCRIPTION
[0017] The utility model will be further described below in connection with the drawings and examples.
[0018] As Figs. 1-2 Indicated, a dry quenching belt chute flap valve switch limit control device, including electro-hydraulic push rod 1, flap 2, turnover shaft 3, limit baffle 4, two fixed frames 5, two U-shaped electromagnetic limit switches 6 and control system;
[0019] The one end of flap 2 is fixedly connected with turnover shaft 3, and the other end of flap 2 is hingedly connected with the telescopic end of electro-hydraulic push rod 1, the lower end of limit baffle 4 is vertically fixedly arranged in the middle part of flap 2, the two fixed frames 5 are arranged on the arc track above flap 2 with turnover shaft 3 as the center, the two U-shaped electromagnetic limit switches 6 adopt integrated switch, and cable wiring is integrated in the switch inside, does not need external circuit, and the airtightness is good, therefore coke powder short circuit fault can not occur, and the U-shaped mouth 7 of the U-shaped electromagnetic limit switch is downwardly fixedly arranged at the front end of the two fixed frames 5 respectively, and the upper end of limit baffle 4 can pass through the U-shaped mouth 7 of the U-shaped electromagnetic limit switch 6;
[0020] The control system is electrically connected with electro-hydraulic push rod 1, U-shaped electromagnetic limit switch 6, belt conveyor and standby belt conveyor respectively.
[0021] The working process of the utility model discloses:
[0022] The utility model discloses when using, electro -hydraulic push rod 1, U type electromagnetic limit switch 6, belt conveyor and spare belt conveyor are electrified, when the limit baffle 4 is in the U type mouth 7 in position 1, the belt conveyor normal operation, electro -hydraulic push rod 1 is powered off, and the limit baffle 4 keeps the current position unmoved, keeps the belt conveyor normal operation;
[0023] When the belt conveyor stops running due to failure, the control system receives the failure signal of the belt conveyor, controls the electro -hydraulic push rod 1 to start elongation, pushes the flap 2 to rotate around the turnover shaft 3, and the limit baffle 4 rotates, when the limit baffle 4 rotates to the U type mouth 7 in position 2, the electro -hydraulic push rod 1 is powered off again, and the limit baffle 4 stays in the U type mouth 7 unmoved, and the U type electromagnetic limit switch 6 at position 2 keeps the state of being connected, at this time, the spare belt conveyor continues to run.
Claims
1. A dry quenching belt conveyor flap valve switch limiting control device, characterized in that, The utility model relates to a kind of electro-hydraulic push rod (1), flap (2), turnover shaft (3), limit baffle (4), two fixed frame (5), two U-shaped electromagnetic limit switch (6) and control system; One end of the flap (2) is fixedly connected with the turnover shaft (3), and the other end of the flap (2) is hingedly connected with the telescopic end of the electro-hydraulic push rod (1). The lower end of the limit baffle (4) is vertically fixed on the middle part of the flap (2). The two fixed frames (5) are arranged on the arc track above the flap (2) with the turnover shaft (3) as the center. The U-shaped mouth (7) of the two U-shaped electromagnetic limit switches (6) faces downward and is fixedly arranged at the front end of the two fixed frames (5) respectively. The upper end of the limit baffle (4) can pass through the U-shaped mouth (7) of the U-shaped electromagnetic limit switch (6). The control system is electrically connected with the electro-hydraulic push rod (1), the U-shaped electromagnetic limit switch (6), the belt conveyor and the standby belt conveyor respectively.
2. The limiting control device for the flap valve switch of the dry quenching belt chute according to claim 1, characterized in that, The U-shaped electromagnetic limit switch (6) adopts an integrated switch, and the cable wiring is integrated in the switch.