CN202700629U - Computer programmable pulverizer intelligent feeding controller - Google Patents

Abstract

The utility model provides a computer programmable pulverizer intelligent feeding controller. Two phase lines of a drive motor of a pulverizer are respectively provided with a mutual inductor used for collecting working currents of the drive motor of the pulverizer. The controller is further provided with two digital ammeters, wherein one ammeter is set with a lower limit set value, the other ammeter is set with an upper limit set value, and the ammeters possess the functions of upper/lower limit alarm and relay output. The mutual inductors can collect current values and deliver the collected current values to the insides of the ammeters, and then the ammeters compare the current values with the set values inside the ammeters. When the collected current values are greater than the limit set values, a feeding machine is controlled to stop working; while when the collected current values are smaller than the limit set values, the feeding machine is controlled to work so as to feed the pulverizer. The phenomenon that the pulverizer is jammed can be avoided. The computer programmable pulverizer intelligent feeding controller is suitable for all kinds of pulverizer equipment and strong in generality.

Description

Computer Programmable Crusher Intelligent Feeding Controller

Technical field

The utility model is an electrical control device for equipment and can achieve intelligent control of the equipment, especially can make the hammer pulverizer always achieve the highest pulverization efficiency in the production process without the pulverizer stuck phenomenon. the

Background technique

At present, in the industry known to use pulverizers to crush materials, automatic feeding equipment (such as conveyor belts, vibrating feeders, electromagnetic vibrating feeders, etc.) is installed at the feed port of the pulverizer. The feeding of the pulverizer is now controlled manually or using an electromagnetic governor to give the feeder a constant voltage; some use a switch to turn off the power of the feeder from time to time; some use a time relay to control the feeding Time; to achieve the purpose of feeding the pulverizer, because the material fed into the pulverizer is divided into volume and density, and the pulverization time is different. The above control method is unreasonable, and the pulverizer is often stuck. Afterwards, a series of equipment needs to be shut down. After shutting down, all the materials in the pulverizer must be manually emptied before all the equipment can be restarted. This wastes time (after the pulverizer is stuck, it will take a certain amount of time to empty the material in the machine), wastes electric energy (the starting current of the motor is too large, and frequent starts waste electric energy), and also wastes labor. the

Invention content:

In order to overcome the shortcomings of the existing control equipment and methods, after installing the controller, the pulverizer can achieve the highest working efficiency and the pulverizer will not be stuck. Various pulverizers can be used, and the versatility is strong. The utility model provides a computer programmable pulverizer intelligent feeding controller, in which a mutual inductor is respectively installed on the two phase lines of the pulverizer driving motor to collect the working current of the pulverizer driving motor. Two digital display ammeters are installed, one of which is set with a lower limit setting value, and the other ammeter has an upper limit setting value. The ammeter has the functions of upper and lower limit alarms and relay output; the transformer sends the collected current value to Into the ammeter, the ammeter compares the current value with the set value in the ammeter. When the collected current value is greater than the upper limit set value, the feeder is controlled to stop working. When the collected current value is less than the lower limit set value , control the feeder to work to feed the pulverizer. the

The technical scheme adopted by the utility model to solve the technical problem is: use programming to set the set value of the ammeter, and by changing the size of the transformer and the set value, both large and small motors can be used, and the versatility is strong; the digital display The ammeter can display the working current and status of the drive motor of the pulverizer in real time; by adjusting the upper and lower limit settings, the amount of material stored in the pulverizer can be controlled; the feeder can be controlled by using the relay output switch control signal. Its specific working principle is: install two transformers (one on each phase line) on the phase line of the pulverizer motor, collect the working current (3 times/s) of the pulverizer motor in real time, and install two transformers on the controller. Digital display ammeter, this ammeter has an over-limit alarm contact output function, when the current reaches the upper limit and lower limit, a relay will act (alarm switching difference = 1% of the meter's range). The controller has two digital display ammeters. At the same time, the working current of the motor is always detected. One meter only sets the upper limit alarm value. When the motor working current is higher than the upper limit alarm value, the relay is closed. , the relay releases; the other meter only sets the lower limit alarm value, when the working current of the motor is lower than the lower limit alarm value, the relay pulls in, and when it is higher than the lower limit set value, the relay releases; the current is blocked by the pulverizer to control The amount of material stored in the pulverizer, the two ammeters can convert the collected current signal into two switch signals, and use these two switch signals to control the working status of the intermediate relay, thereby controlling the start and stop status of the external feeder, to achieve The intelligent control of the feeding amount of the pulverizer achieves intelligent feeding so that the pulverizer can always work at the highest efficiency, and there will be no jamming phenomenon of the pulverizer, so as to achieve the purpose of normal production. the

The beneficial effect of the utility model is: it solves the phenomenon that the pulverizer often gets stuck in the pulverizing industry, and can automatically identify the size and hardness of the material to be processed, so that the equipment can always work in the best state, and the production efficiency of the machine can also be controlled , save electricity, reduce labor, save time, and can completely replace labor in some production processes. the

Description of drawings:

Below in conjunction with accompanying drawing and embodiment the utility model is further described. the

Fig. 1 is a schematic circuit diagram of the utility model. the

Detailed ways:

This product is suitable for feeders with various working voltages. The following uses a three-phase motor as an example to illustrate. the

In Figure 1, L1, L2, L3, and N are three-phase four-wire power supply lines, which provide working voltage for each unit. The host of the controller uses a switching power supply for power supply, which is not affected by the fluctuation of the grid voltage and has strong anti-interference ability. M2 (2) is the pulverizer power motor, M1 (1) is the feeder motor, ammeter A (17), ammeter B (18) are digital ammeters with upper and lower limit alarm relay output, Z (19, 20) are mutual inductance (The parameters are determined by the power of M2(2)), the indicator light is a 12V indicator light, the transformer is used to collect the current of the power motor M2(2) of the pulverizer, the switch SB1(22) is closed, and the ammeter A(17) and the ammeter B (18) Set up. After the setting is completed, you can work. First start the power motor M1 (1) of the pulverizer. At this time, close SB1 (22) and SB2 (21), and all circuits are connected (the working indicator light is on. ), at this time the working current of M2(2) is the no-load current, the current of M2(2) is lower than the lower limit current value of ammeter B(18), KM4(16) pulls in, KM4(4) normally closed contact breaks Open, KM1(6) is released, KM1(9) normally closed contact is closed, KM2(10) is energized and closed (feed indicator light is on), KM2(13) normally open contact is closed, KM5(14) is energized Closed, KM5 (23) normally open contact is closed, the feeder motor M1 (1) is energized and starts to work to feed the pulverizer, after the pulverizer feeds, the working current of the power motor M2 (2) starts to rise, when M2 When the operating current of (2) rises to a value greater than the lower limit set current value of the ammeter B (18), KM4 (16) is released. At this time, the pulverizer continues to feed, and the operating current of M2 (2) continues to rise until it reaches the current value of the ammeter A ( 17) When the upper limit is set, KM3 (15) pulls in, KM3 (5) normally open contact closes, KM1 (6) gets energized and pulls in (the stop indicator lights up), KM1 (7) normally open contact Closed to make KM1(6) self-locking, KM1(9) normally closed contact is disconnected, KM2(10) is de-energized and disconnected, KM2(13) normally-open contact is de-energized, KM5(14) is de-energized and disconnected, The normally open contact of KM5 (23) is disconnected, and the feeder motor M1 (1) loses power to stop feeding. At this time, the working current of the M2 (2) motor drops, and when it drops to the lower limit set current value of the ammeter B (18) At this time, KM4 (16) pulls in, KM4 (4) normally closed contact opens, KM1 (6) releases, KM2 (10) pulls in, KM5 (14) pulls in, motor M1 (1) continues to feed, Cycle work in sequence to complete the detection of the working current of the motor of the pulverizer, and carry out intelligent feeding according to the working status of the pulverizer for the purpose of avoiding jamming. the

If the contact of KM2(10) works for a long time, the contact wears out and the contact is not good, causing the contact to burn out, KM1(6) and KM2(10) are closed at the same time, and the fault indicator light is on, reminding the user that the device has failed. Use it after troubleshooting to avoid the shredder being stuck when the equipment is damaged. the

Connect all electrical equipment according to the drawings in the manual, install two transformers (one on each phase line) on the phase line of the pulverizer drive motor to collect the constant working current of the pulverizer drive motor, and set the upper limit current of the ammeter value, set the lower limit current value of the lower limit ammeter, such as a 90KW motor, the full load operating current is about 180A, the upper limit value can be set to 150A, and the lower limit value can be set to 130A. When the motor operating current is greater than 150A, When the motor of the feeder is powered off, feeding stops. When the motor current value is less than 130A, the motor of the feeder is powered on to start feeding, achieving the purpose of intelligent (automatic identification of material size and hardness) feeding. Among them, M1(1), M2(2), KM5(14), Z(19, 20) (current transformers) are external devices, and other components are installed inside the instrument. the

Claims (7)

1. computer programmable pulverizer intelligence feeding control instrument, it is characterized in that: two phase lines at the pulverizer drive motor are separately installed with a transformer, be used for gathering the operating current of pulverizer drive motor, two digital display ammeters also are housed on the controller, one of them ammeter is set with lower limit set value, another ammeter has upper limit set value, and described ammeter has the function that bound is reported to the police, relay is exported; Transformer is delivered to the current value that collects in the ammeter, ammeter compares the setting value in this current value and the ammeter, when the current value that collects during greater than upper limit set value, the control feeding machine quits work, when the current value that collects during less than lower limit set value, the work of control feeding machine is to the pulverizer feeding.

2. controller according to claim 1 is characterized in that: utilize programming to set the setting value of ammeter.

3. controller according to claim 1 is characterized in that: transformer size and described setting value can change.

4. controller according to claim 1, it is characterized in that: described digital display ammeter can show pulverizer drive motor operating current and state in real time.

5. controller according to claim 1 is characterized in that: by regulating bound setting value, material stock amount in the controlled pulverizer processed.

6. controller according to claim 1 is characterized in that: utilize relay output switch amount control signal.

7. controller according to claim 1 is characterized in that: the power supply of the inner employing of the main frame of described controller Switching Power Supply.

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