CN212668153U

CN212668153U - Anti-blocking coal protection device

Info

Publication number: CN212668153U
Application number: CN202021557983.6U
Authority: CN
Inventors: 沈强; 徐海; 尹浩洁; 许珂
Original assignee: Huaneng Linyi Power Generation Co Ltd
Current assignee: Huaneng Linyi Power Generation Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-09
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a prevent stifled coal protection device, it belongs to the chute blockage protector field, it has solved and has lacked a simple structure among the prior art, and the detector is located inside the casing, utilizes the ultrasonic wave to solid and solid particulate matter reflection principle, can make the most accurate judgement to the chute blockage, does not receive coal cinder and debris influence, and it is downward to survey the inclination, through reasonable time delay, avoids the malfunction of fly-shooting coal cinder and debris, guarantees to protect correct action, the strong problem of preventing chute blockage coal protection device of maintainability. The coal feeding device mainly comprises a lower coal cylinder and a belt, wherein the belt is driven by a motor, a detection device is arranged on the wall of the lower coal cylinder, and the detection device is arranged on the lower coal cylinder through a fixing device; the detection device comprises a casing, a control unit is arranged in the casing, and a detector and a control cover plate are arranged on the casing; the control unit is connected with the motor through a relay; the casing is provided with a detection device. The utility model discloses mainly used chute blockage detects, and protective apparatus normally functions.

Description

Anti-blocking coal protection device

Technical Field

The utility model relates to a coal blockage protector, specifically speaking especially relates to a prevent stifled coal protection device.

Background

In the coal conveying system, when coal blocks conveyed by a belt are conveyed by a lower coal cylinder in a grading manner, the lower coal cylinder is blocked due to reasons such as coal quality, damp in rainy days, and faults of a baffle plate of the lower coal cylinder. The coal blockage protection in the existing coal conveying system is divided into mechanical type and electric rotating blocking type blockage prevention protection: the mechanical protection is that the metal rod moves when inclined, the contact in the metal rod moves, and the coal blockage is detected, and the equipment has the defects that the working condition in the closed space is complex, the metal rod is hit by coal blocks, the metal rod is frequently inclined, and the coal blockage protection is frequently in misoperation; the electric rotating blocking type coal blockage device has the working principle that after coal blockage is detected after an electric rotating switch is blocked, the device has the defect that a large amount of sundries such as iron wires, straws, straw ropes, gunny bags and the like are contained in raw coal in the mining and storage process, and when the coal blockage device is in operation, the sundries can be wound on the electric rotating switch, so that frequent actions of coal blockage protection are caused.

At present, an anti-blocking coal protection device which is simple in structure, has a detector positioned inside a shell, can make the most accurate judgment on coal blockage by utilizing the reflection principle of ultrasonic waves on solid and solid particles, is not influenced by coal blocks and sundries, has a downward detection inclination angle, avoids the misoperation of flying coal blocks and sundries by reasonable time delay, ensures the correct protection action and has strong maintainability is lacking.

Disclosure of Invention

An object of the utility model is to provide a prevent stifled coal protection device to solve and lack a simple structure among the prior art, inside the detector was located the casing, utilize the ultrasonic wave to solid and solid particulate matter reflection principle, can make the most accurate judgement to the chute blockage, do not influenced by coal cinder and debris, the detection inclination was downward, through reasonable time delay, dodged the malfunction of fly-shooting coal cinder and debris, guaranteed to protect correct action, the problem of preventing stifled coal protection device that maintainability is strong.

The utility model discloses a realize through following technical scheme:

an anti-blocking coal protection device comprises a lower coal barrel and a belt, wherein the belt is driven by a motor, a detection device is arranged on the barrel wall of the lower coal barrel, and the detection device is installed on the lower coal barrel through a fixing device; the detection device comprises a casing, a control unit is arranged in the casing, and a detector and a control cover plate are arranged on the casing; the control unit is connected with the motor through a relay; the casing is provided with a detection device.

Furthermore, the fixing device comprises a hinge and a lock nose which are respectively arranged on the machine shell and the lower coal cylinder.

Furthermore, the detection device comprises a rotating baffle plate and a knob, wherein the rotating baffle plate is provided with a prismatic rotating column, and a hole with the same section as the prismatic rotating column is formed in the knob.

Further, the detector is an ultrasonic sensor.

Further, the control unit is interconnected with the control room through Zigbee.

Furthermore, a buzzer and an action indicating lamp are arranged on the control cover plate and are connected with the control unit.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the principle of reflecting solid and solid particles by ultrasonic waves is utilized, the coal blockage can be judged most accurately, the influence of coal blocks and sundries is avoided, the coal blockage is reliably detected, and correct action is performed.

2. And the streamline gradient design is adopted, so that the reliable action of the probe can be ensured, the coal accumulation of the monitoring device can be avoided, the false action of the coal blocks and sundries which are subjected to flying jet can be avoided through reasonable time delay, and the correct action of protection can be ensured.

3. Simple structure, convenient installation and strong maintainability.

Drawings

Fig. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural diagram of the detection device of the present invention;

fig. 3 is an exploded view of the detection device of the present invention;

fig. 4 is a cross-sectional view of the detection device of the present invention;

fig. 5 is a schematic structural diagram of the knob of the present invention;

fig. 6 is a schematic view of a control cover of the present invention;

fig. 7 is a flow chart of the present invention.

In the figure: 1. a housing; 2. a hinge; 3. an ultrasonic sensor; 4. locking the nose; 5. a knob; 6. rotating the baffle; 7. a prismatic rotating column; 8. a control cover plate; 9. a belt; 10. a motor; 11. and (5) discharging the coal cylinder.

Detailed Description

The invention will be further described and illustrated with reference to the accompanying drawings.

Embodiment 1, a coal blockage prevention protection device, including a lower coal cylinder 11 and a belt 9, the belt 9 is driven by a motor 10, a detection device is arranged on the cylinder wall of the lower coal cylinder 11, the detection device is installed on the lower coal cylinder 11 through a fixing device; the detection device comprises a machine shell 1, wherein a control unit is arranged in the machine shell 1, and a detector and a control cover plate 8 are arranged on the machine shell 1; the control unit is connected with the motor 10 through a relay; the casing 1 is provided with a detection device.

Embodiment 2, a coal block prevention protection device, the fixing device includes a hinge 2 and a lock nose 4 respectively arranged on the casing 1 and the lower coal cylinder 11; the detection device comprises a rotating baffle 6 and a knob 5, wherein the rotating baffle 6 is provided with a prismatic rotating column 7, and the knob 5 is internally provided with a hole with the same section as the prismatic rotating column 7; the detector is an ultrasonic sensor 3; the control unit is interconnected with the control room through Zigbee; the control cover plate 8 is provided with a buzzer and an action indicating lamp, the buzzer and the action indicating lamp are connected with a control unit, and the rest is the same as that of the embodiment 1.

The ultrasonic sensor 3 is arranged in a casing 1 which is made of smooth materials such as metal, ABS, polyester and the like in streamline design, the casing 1 is designed to be wide-mouth, and a detection device is arranged at the coal blockage position of a lower coal cylinder 11. The working area of the ultrasonic sensor 3 has almost no coal flow at ordinary times, and can detect a continuous coal blockage signal only when coal blockage occurs. One end of the shell 1 is fixed through a hinge 2, and the other end is locked and fixed through a lock nose 4, and the utility model is started, the equipment communication self-check is realized, the delay time of a detection signal is adjusted through a delay adjusting button on a control cover plate 8, when the ultrasonic sensor 3 detects a continuous shielding signal which accords with the delay time, the control unit controls the relay to be disconnected, and then the motor 10 stops rotating, and simultaneously the buzzer and the indicating lamp act and transmit a fault signal to a control room; otherwise, the timing operation is released. The control cover plate 8 is also provided with a reset button for resetting the device. Rotate rotating barrier 6 through knob 5, rotating certain angle after rotating barrier 6 and can just in time sheltering from ultrasonic sensor 3, can be used to detect whether ultrasonic sensor 3 and this equipment normally work this moment, if equipment does not move, alright maintain at any time.

Claims

1. The utility model provides an anti-blocking coal protection device, includes coal section of thick bamboo (11) and belt (9) down, and belt (9) are by motor (10) drive, its characterized in that: the wall of the lower coal barrel (11) is provided with a detection device, and the detection device is arranged on the lower coal barrel (11) through a fixing device; the detection device comprises a casing (1), a control unit is arranged in the casing (1), and a detector and a control cover plate (8) are arranged on the casing (1); the control unit is connected with the motor (10) through a relay; the casing (1) is provided with a detection device.

2. The anti-clogging coal protection device according to claim 1, characterized in that: the fixing device comprises a hinge (2) and a lock nose (4) which are respectively arranged on the machine shell (1) and the lower coal barrel (11).

3. The anti-clogging coal protection device according to claim 1, characterized in that: the detection device comprises a rotating baffle (6) and a knob (5), wherein the rotating baffle (6) is provided with a prismatic rotating column (7), and a hole with the same section as the prismatic rotating column (7) is arranged in the knob (5).

4. The anti-clogging coal protection device according to claim 1, characterized in that: the detector is an ultrasonic sensor (3).

5. The anti-clogging coal protection device according to claim 1, characterized in that: the control unit is interconnected with the control room through Zigbee.

6. The anti-clogging coal protection device according to claim 1, characterized in that: and the control cover plate (8) is provided with a buzzer and an action indicating lamp, and the buzzer and the action indicating lamp are connected with the control unit.