Chute fan switching device for cement production homogenizing silo

Abstract

The utility model relates to the technical field of cement production, in particular to a cement production homogenizing silo chute fan switching device which comprises a switching bottom plate and two fans, the number of the fans is two, the fans are connected to the switching bottom plate in a sliding mode through supports, and the cement production homogenizing silo chute fan switching device is characterized by further comprising a switching mechanism; the switching mechanism comprises a mounting base arranged on the switching bottom plate, an air cylinder rotationally connected to the mounting base and a motor arranged on the switching bottom plate through a motor base, an output shaft of the air cylinder is connected with a transverse plate used in cooperation with the support, the transverse plate can drive the support to move, and an output shaft of the motor is connected with the air cylinder; through the linkage design of the switching mechanism, the air cylinder is used for driving the transverse plate to be matched with the sliding support, rapid and automatic switching of the double fans is achieved, and delay of manual operation is effectively avoided; the cooperative control logic of the motor and the air cylinder is matched with the real-time monitoring of the sensor and the PLC, so that the whole-course automation of fault judgment, standby starting and mechanical switching is realized, and the cement production continuity and reliability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cement production technical field, concretely is a cement production homogenization storehouse chute fan switching device. BACKGROUND

[0002] In the cement production process, air chute fan is the key equipment of homogenization storehouse to kiln hopper section material conveying. UTILITY MODEL CONTENTS

[0003] The utility model discloses a cement production homogenization storehouse chute fan switching device, which is used to solve the problem of low production efficiency caused by long downtime mentioned in the background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a cement production homogenization storehouse chute fan switching device, including switching bottom plate and fan, the fan is equipped with two and all is through the support sliding connection on switching bottom plate, its characterized in that, still includes switching mechanism, the switching mechanism includes the mounting seat on switching bottom plate, the cylinder that rotates and connects on mounting seat and the motor that is through motor base and is located on switching bottom plate, the cylinder output shaft is connected with the horizontal plate of cooperation use with support, the horizontal plate can drive support moves, the motor output shaft is connected with the cylinder.

[0005] Further, the fan air outlet is detachably connected with the air pipe, and one end of the two air pipes is detachably connected with the air distributor.

[0006] Further, the air pipe is composed of a first pipe and a second pipe, the first pipe is a flexible pipe and is connected with the fan air outlet, the second pipe is a rigid pipe and is connected with the air distributor, and a one-way valve is arranged on the second pipe.

[0007] Further, an L-shaped frame body is arranged on the switching bottom plate, and one end of the frame body is detachably connected with the two second pipes respectively.

[0008] Further, a plurality of sensors are arranged on the fan, and the sensors, the one-way valve, the cylinder and the motor are connected with the PLC controller.

[0009] Further, a pipe is arranged on the air distributor.

[0010] Compared with the prior art, the utility model has the beneficial effects as follows:

[0011] The device realizes quick automatic switching of double fans by linkage design of the switching mechanism, utilizes cooperation of the cylinder driving horizontal plate and the sliding support, effectively avoids delay of manual operation; the modularized air pipe design combines the combined structure of the flexible pipe and the rigid pipe, simultaneously reduces vibration transmission, ensures pressure stability in the airflow switching process through seamless connection of the one-way valve and the air distributor, and prevents interruption of material conveying; the detachable fixing mode of the L-shaped frame body to the pipeline is combined with the slide rail, simplifies equipment maintenance process, and can keep another fan continuously running when single fan maintenance is performed; the cooperative control logic of the motor and the cylinder is combined with real-time monitoring of the sensor and the PLC, realizes whole-process automation of fault determination, standby starting and mechanical switching, and improves continuity and reliability of the cement production line. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a whole structure diagram of the utility model;

[0013] Fig. 2 It is a rear view of the utility model;

[0014] Fig. 3 It is a system block diagram of the utility model.

[0015] In the drawing:

[0016] 1, bottom plate; 2, fan; 3, air pipe; 4, support; 5, mounting seat; 6, cylinder; 7, motor; 8, horizontal plate; 9, air distributor; 10, frame body. DETAILED DESCRIPTION

[0017] Please refer to Figs. 1-2 A cement production homogenization warehouse chute fan switching device, the main body is composed of a switching bottom plate 1, a fan 2 and a switching mechanism.

[0018] The switching bottom plate 1 is provided with two groups of slide rails. The fan 2 is provided with two, one is a commonly used fan, and the other is a standby fan, the fan 2 is specifically a centrifugal fan, a Roots blower, an axial flow fan and the like, and the start and stop of the fan 2 are controlled through a solenoid valve. The fan 2 is also provided with a current sensor, a vibration sensor and a temperature sensor; the current sensor is connected in series in any one phase of the three-phase power supply line of the fan 2 motor; the vibration sensor is installed on the fan bearing seat or the motor bearing seat; the temperature sensor is installed at the heat dissipation port of the fan shell. And the bottom of the two fans 2 is provided with a support 4, the support 4 is in sliding cooperation with the slide rail; and a clamping groove is formed in the support 4.

[0019] The switching mechanism is specifically composed of a mounting base 5, a cylinder 6 and a motor 7. The mounting base 5 is fixed on the switching base plate 1 by means of bolts or welding. The cylinder 6 is rotatably installed on the mounting base 5 by bearings, and the pipeline for supplying compressed air to the cylinder 6 needs to adopt a flexible hose. A cross plate 8 is connected to the output shaft of the cylinder 6, and the length and size of the cross plate 8 are adapted to the clamping groove formed on the support 4. The cross plate 8 can be clamped into the clamping groove by rotating the cylinder 6. The motor 7 is specifically a stepping motor and is installed on the switching base plate 1 by a motor base. The output shaft of the motor 7 is connected to the cylinder 6 to drive the cylinder 6 to rotate. Bearings are selected according to specific requirements, and the connection between the components should be stable to ensure the normal operation of the cylinder 6 and the motor 7.

[0020] The fan 2 is detachably connected with the air pipe 3 at the air outlet by means of flanges or bolts. The air pipe 3 is composed of a first pipeline and a second pipeline which are connected with each other. The first pipeline is a flexible pipe (for example, a corrugated metal hose) connected with the air outlet of the fan 2. The second pipeline is a rigid pipe (for example, a steel pipe) which is also detachably connected with the double inlet of the air distributor 9 by means of flanges or bolts. A one-way valve, specifically an electromagnetic one-way valve, is arranged on the second pipeline. The outlet of the air distributor 9 is connected with a pipeline which communicates with the air chamber at the bottom of the chute. An L-shaped bracket 10 is arranged on the switching base plate 1. One end of the bracket 10 is detachably connected with the two second pipelines by means of clamps, buckles or the like.

[0021] As shown in Fig. 3 The current sensor, the vibration sensor, the temperature sensor, the electromagnetic one-way valve, the electromagnetic valve, the cylinder 6 and the motor 7 are all connected with the PLC controller. The current sensor, the vibration sensor and the temperature sensor detect various values when the fan 2 is running, and threshold values are set on the PLC controller. When the detected data is greater than or less than the set threshold value, the one-way valve, the electromagnetic valve, the cylinder 6 and the motor 7 are started or stopped by the PLC controller.

[0022] The working process and principle of the utility model are as follows: in the initial state of the device, the electromagnetic valve on the commonly used fan is opened, and the commonly used fan provides air power. The one-way valve on the air pipe 3 connected with the air outlet of the commonly used fan is in an open state. The one-way valve on the standby fan is closed, and the standby fan does not run. The one-way valve on the air pipe 3 connected with the air outlet of the commonly used fan is in a closed state.

[0023] When the current sensor, vibration sensor, temperature sensor detects the current fluctuation, vibration, temperature and other values of the common fan operating state are different from the set threshold on the PLC controller, the PLC controller controls the electromagnetic valve on the standby fan to open, controls the one-way valve on the air pipe 3 connected to the common fan outlet to open, and controls the motor 7 to start, drives the cylinder 6 to rotate 90°, and then drives the cross plate 8 to rotate 90° (initial state, the cross plate 8 is vertically placed), clamps into the clamping groove provided on the common fan support 4, and then controls the cylinder 6 output shaft to retract, and then the common fan moves to the other side of the switching base plate 1. When the standby fan runs for 2-3 seconds, the PLC controller controls the electromagnetic valve of the common fan to close, at this time the common fan does not run, only through the standby fan to provide wind power. At this time the common fan moves out, so that the staff can carry out maintenance or replacement.

[0024] After the common fan is repaired or replaced, the PLC controller controls the cylinder 6 output shaft to retract, and then drives the common fan to move to the original position, and controls the motor 7 to reverse, and then drives the cross plate 8 to reset, and then controls the electromagnetic valve of the common fan to open through the PLC controller. After the common fan runs for 2-3 seconds, the PLC controller closes the electromagnetic valve of the standby fan.

[0025] If the standby fan fails, the standby fan can also be moved out for maintenance or replacement by the above-mentioned method.

[0026] The device can also use two fans alternately, when one fan 2 fails, start another fan 2 to provide wind power, and move out the failed fan for maintenance and replacement. Reciprocate in turn to ensure the continuity of cement production.

Claims

1. A cement production homogenizing silo chute fan switching device, comprising a switching base plate (1) and a fan (2), the fan (2) is provided with two and is slidably connected to the switching base plate (1) through a support (4), characterized in that, It also includes a switching mechanism; the switching mechanism includes a mounting seat (5) provided on the switching base plate (1), a cylinder (6) rotatably connected to the mounting seat (5), and a motor (7) provided on the switching base plate (1) through a motor base, the output shaft of the cylinder (6) is connected with a cross plate (8) used in cooperation with the support (4), the cross plate (8) can drive the support (4) to move, and the output shaft of the motor (7) is connected with the cylinder (6).

2. The switching device of claim 1, wherein, The fan (2) is detachably connected with the air pipe (3), and one end of the two air pipes (3) is detachably connected with the air distributor (9).

3. The switching device of claim 2, wherein, The air pipe (3) is composed of a first pipe and a second pipe, the first pipe is a flexible pipe and is connected with the fan (2) outlet, the second pipe is a rigid pipe and is connected with the air distributor (9), and a one-way valve is arranged on the second pipe.

4. The switching device of claim 3, wherein, An L-shaped frame body (10) is arranged on the switching base plate (1), and one end of the frame body (10) is detachably connected with the two second pipes respectively.

5. The switching device of claim 1, wherein, A plurality of sensors are arranged on the fan (2), and the sensors, the one-way valve, the cylinder (6) and the motor (7) are connected with the PLC controller.

6. The switching device of claim 2, wherein, A pipe is arranged on the air distributor (9).

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