CN209960966U

CN209960966U - Roller kiln electrical system

Info

Publication number: CN209960966U
Application number: CN201920485069.6U
Authority: CN
Inventors: 于军
Original assignee: Nantong Furete Kiln Co Ltd
Current assignee: Nantong Furete Kiln Co Ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2020-01-17
Anticipated expiration: 2029-04-11

Abstract

The utility model discloses a roller kiln electrical system, including CPU controller, heating system, transmission system and auxiliary system, heating system, transmission system, auxiliary system are connected respectively to the CPU controller, the utility model discloses structural design is novel, and intelligent degree is high, controls heating system, transmission system and auxiliary system's collaborative work respectively through the CPU controller, can make each system orderly mutually support, and accurate control has played decisive effect, can produce high-quality product.

Description

Roller kiln electrical system

Technical Field

The utility model relates to a roller kilns control technical field specifically is a roller kilns electrical system.

Background

Roller kilns are also known as roller hearth kilns. The method is mainly used for producing ceramic building materials such as ceramic tiles and the like. Roller kilns are continuous firing kilns, tunnel kilns with rotating rollers as green body carriers. Ceramic products are placed on a plurality of closely spaced horizontal refractory rollers and are transferred from the head to the tail of the kiln by rotation of the rollers, known as roller kilns. The combustion chamber of the roller kiln is arranged below the roller and burns fuel such as heavy oil, diesel oil, kerosene and the like atomized by compressed air. The gas produced by the gas producer is also used for burning, and compared with large-scale ceramic factories, double-section cold gas stations are adopted, and cold static gas is used for burning to produce high temperature. Between the combustion chamber and the roller way, there is a refractory material to isolate, and the flame does not directly contact the fired product. Relatively speaking, the combustion cost of the roller kiln matched with the gas producer is lower than that of heavy oil, diesel oil and the like, and the efficiency is higher than that of direct coal combustion, so that the environment is protected and reaches the standard. When heavy oil is used as fuel, in order to prevent smoke from polluting products, a flame-proof or semi-flame-proof mode is adopted. In the case of electric heating, the heating element and the product should be separated from each other in order to protect the heating element or to make the temperature more uniform.

The existing roller kiln electric control system has complex control principle and low accuracy, so the existing electric control system is needed to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a roller kilns electrical system to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an electric control system of a roller kiln comprises a CPU controller, a heating system, a transmission system and an auxiliary system, wherein the CPU controller is respectively connected with the heating system, the transmission system and the auxiliary system.

Preferably, the heating system comprises a thyristor power regulator, a temperature control meter, a transformer and a thermocouple, the thermocouple is electrically connected with the temperature control meter, the temperature control meter is electrically connected with the thyristor power regulator, and the thyristor power regulator is connected with the heater through the transformer.

Preferably, transmission system includes PLC controller and converter, PLC controller electric connection converter, the converter adopts the siemens converter, converter electric connection driving motor still includes cooling fan and limit switch, cooling fan and limit switch be electric connection PLC controller respectively.

Preferably, the auxiliary system comprises an electric valve, a feedback resistor and a communication module, and the electric valve and the feedback resistor are respectively connected with the CPU controller through the communication module.

Preferably, the CPU controller adopts a Siemens 300 series CPU.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses structural design is novel, and intelligent degree is high, controls heating system, transmission system and auxiliary system's collaborative work respectively through the CPU controller, can make each system coordinate each other orderly, and accurate control has played decisive effect, can produce high-quality product.

Drawings

FIG. 1 is a block diagram of the system control principle of the present invention;

FIG. 2 is a block diagram of the control principle of the heating system of the present invention;

fig. 3 is a block diagram of the control principle of the transmission system of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an electric control system of a roller kiln comprises a CPU controller 1, a heating system 2, a transmission system 3 and an auxiliary system 4, wherein the CPU controller 1 is respectively connected with the heating system 2, the transmission system 3 and the auxiliary system 4. The CPU controller 1 employs a siemens 300 series CPU.

The utility model discloses in, heating system 2 includes thyristor power regulator 5, control by temperature change table 6, transformer 7 and

thermocouple

8, 8 electric connection control by temperature change tables 6 of thermocouple, 6 electric connection thyristor power regulator 5 are shown in the control by temperature change, thyristor power regulator 5 passes through transformer 7 and connects heater 9. The heating system is controlled by the cooperation of the thyristor power regulator and the temperature control instrument. The temperature measurement of the thermocouple is transmitted to a temperature control meter, the temperature control meter drives a thyristor power regulator through the PID regulating function of the temperature control meter, the output voltage of the thyristor power regulator controls the heating of a heater, the whole process forms closed-loop control, the temperature can be stabilized at the set temperature, and the deviation is only +/-1 ℃.

In the utility model, the transmission system 3 comprises a PLC controller 10 and a frequency converter 11, the PLC controller 10 is electrically connected with the frequency converter 11, the frequency converter 11 adopts a Siemens frequency converter, the frequency converter 11 is electrically connected with a driving motor 12, the transmission system also comprises a heat radiation fan 13 and a limit switch 14, the heat radiation fan 13 and the limit switch 14 are respectively electrically connected with the PLC controller 10, and the PLC controller 10 adopts a Siemens PLC controller; the transmission system is controlled by a Siemens frequency converter, a positive and negative rotation signal or a speed regulation signal is given by an external button or an upper computer system, a frequency converter driving motor meets the control requirement, the motor is provided with a heat dissipation motor to protect the motor from being damaged due to heating, and meanwhile, a limit switch is used for limiting protection, so that the motor can be stopped in time when running to a limit position to prevent accidents.

The utility model discloses in, auxiliary system 4 includes electric valve 15, feedback resistance 16 and communication module 17, electric valve 15, feedback resistance 16 connect CPU controller 1 through communication module 17 respectively. The air inlet and outlet system of the kiln oven adopts an automatically controlled electric valve, the opening degree of the valve can be fed back and sent to the control system through communication, a feedback signal is generated by combining a 5V electric signal and a resistor, a 0-10V signal which can be received by the PLC is communicated to the PLC, and the system automatically adjusts the electric valve according to the temperature to realize the stability of temperature control.

To sum up, the utility model discloses structural design is novel, and intelligent degree is high, controls heating system, transmission system and auxiliary system's collaborative work respectively through the CPU controller, can make each system orderly mutually support, and accurate control has played decisive effect, can produce high-quality product.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An electric control system of a roller kiln is characterized in that: the intelligent heating system comprises a CPU controller (1), a heating system (2), a transmission system (3) and an auxiliary system (4), wherein the CPU controller (1) is respectively connected with the heating system (2), the transmission system (3) and the auxiliary system (4).

2. The roller kiln electric control system according to claim 1, characterized in that: the heating system (2) comprises a thyristor power regulator (5), a temperature control meter (6), a transformer (7) and a thermocouple (8), wherein the thermocouple (8) is electrically connected with the temperature control meter (6), the temperature control meter (6) is electrically connected with the thyristor power regulator (5), and the thyristor power regulator (5) is connected with a heater (9) through the transformer (7).

3. The roller kiln electric control system according to claim 1, characterized in that: drive system (3) include PLC controller (10) and converter (11), PLC controller (10) electric connection converter (11), siemens converter is adopted in converter (11), converter (11) electric connection driving motor (12), still include cooling fan (13) and limit switch (14), cooling fan (13) and limit switch (14) are electric connection PLC controller (10) respectively.

4. The roller kiln electric control system according to claim 1, characterized in that: the auxiliary system (4) comprises an electric valve (15), a feedback resistor (16) and a communication module (17), wherein the electric valve (15) and the feedback resistor (16) are respectively connected with the CPU controller (1) through the communication module (17).

5. The roller kiln electric control system according to claim 1, characterized in that: the CPU controller (1) adopts a Siemens 300 series CPU.

6. The roller kiln electric control system according to claim 3, characterized in that: the PLC (10) adopts a Siemens PLC controller.