Cereal Bar Machine is used to produce cereal bar, muesli bar, muesli bar, and other snacks bar. The shapes and sizes can be various by changing the molds, like square, round, ball, triangle, heart, etc.
1. The shapes can be round, cylindrical, square, semi round, triangular and blossom, etc.
2. Mechanical pressing & rubbing, does not hurt nuts, without waste.
3.Mechanical driving, accuracy positioning, upper and nether moulds tight fit, makes super cereal bar shaping.
4.Using high performance frequency inverter, easy adjust speed, high efficiency, it can produce 24-hour continuously.
5. Moulds and hopper are both non-sticky processed. All the parts may contacts food are all non-toxic material, oil and high temperature resistance.
6. Cooling conveyer can be customized as demand.
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1. Select the secondary alarm plan, which uses the equivalent flammable gas concentration of the initial conductivity of the sensor as the first period alarm concentration. During this period, only the warning light is on and the horn does not ring. The second period of the alarm is to open the sound alarm again when the flammable gas leakage concentration reaches a critical risk concentration. Compared with the alarm circuit in the two periods where the requirements of such plans are relatively messy, the cueing force is not strong and not reliable, and the alarm sensitivity is not adjustable;
2. Select the alarm plan for comparison or response delay, but the circuit is very cluttered and the cost is high. Therefore, choosing a hardware design to reduce costs is a key issue. Here, a design plan that uses a combination of digital and analog integrated circuits is proposed to deal with the alarm and secondary alarm questions and it works well.
Gas sensor types are complex and their functions vary. The MQ-KC sensor is used here. It is a new type of resistance-type gas-sensing element that can be used for natural gas, gas, and LPG leak detection. With high sensitivity, long-term stability, long life, low quote, low power consumption, can be convenient to use the battery and other features. MQ-KC type sensor principle: The sensor is connected to the specified load. During the initial period of power-up, the sensor's conductivity shows a higher value, and reaches the steady-state value about 3 min. If it is placed in a combustible gas with a certain concentration, its conductivity will increase. Within a certain range, the higher the concentration of combustible gas, the higher the conductivity of the sensor, if the sensor and the load in series, the load will cause the voltage to change, Read this change voltage, through comparison, expansion to complete the alarm and control functions.
Trial experiments and results: The equipment is placed in the kitchen, warm up 3min, no initial alarm equipment. Close the kitchen door and release the proper gas. After a few seconds, the equipment starts to alarm, and then the equipment will be removed from the scene. The alarm will be stopped after about 30s. In the normal air kitchen, after the device is warmed up for 3 minutes, it is placed on the side of a gas-fired cooker, the cooker switch is turned on, and the flame is extinguished. After a few seconds, the device starts an alarm. When gas is still in the kitchen, it will continue Alarm, it is placed outside the window, it can quickly recover and stop the alarm.
This equipment can be used not only for the leakage of flammable gas from industrial and mining enterprises, but because of its extremely low cost, it can also be extended to ordinary households as a leakage alarm device for gas bathing equipment and kitchen combustible gas. Simply leave its device in the vicinity of the gas appliance to complete the active leak alarm. When handling equipment, care should be taken not to place the equipment in a vent. 
Design Technique Analysis of Flammable Gas Leakage Alarm
Now the completion of flammable gas leakage alarm is divided into two categories, one is a smart alarm centered on the microcontroller, including signal scheduling, A / D sampling and input and output circuits, relatively messy. The other type is completely implemented in hardware and the circuit is very messy. The initial alarm plan can use the following two plans: