A ring mode straw briquetting machine constant temperature device and its control method

Abstract

The invention relates to the technical field of crop straw processing, in particular to a circular mould type straw briquetting machine thermostat and a control method thereof. The thermostat comprises a circular mould, cooling devices, heating devices and a control system, the circular module comprises an upper press plate, a lower press plate and circular mould blocks, each of the upper press plate and the lower press plate is provided with the cooling devices and the heating devices, and the control system is a closed-loop control system, arranged in a control cabinet and composed of a temperature detection control end, a relay control end and a motor control end. When an actual temperature value of the circular mould is higher than T, a heating coil is powered off to stop heating, a motor is started, a water pump starts to work, and cooling water in a circular pipe starts to circulate to cool; when the actual temperature value of the circular mould is lower than T, the motor is powered off, the water pump stops working, the cooling water does not circulate, and the heating coil starts to be powered on to heat until the temperature value reaches T. The circular mould type straw briquetting machine thermostat and the control method are simple and low in cost, the temperature of the circular mould can be controlled in a relative constant state, and stability in the forming process is guaranteed.

Description

Technical field [0001] The present invention involves the field of crop straw processing technology, and specifically refers to a constant temperature device and its control method of a ring mode straw compression machine. Background technique [0002] Crop straw is a valuable resource. China is a large agricultural country with abundant straw resources. The annual output of Chinese crop straw is about 700 million t, which is the first of the world;, Not only waste resources, but also seriously pollute the environment. The curing and molding of straw is a good way to solve this problem. The ring mold molding machine adopts ring -shaped molding holes, which has the advantages of high productivity and low energy consumption.The mainstream equipment for molding; the molding temperature is an important factor affecting the use efficiency and service life of the ring mode of the ring mode; but the constant molding temperature is difficult to control, the main reason is that the ring m...

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Problems solved by technology

[0002] Crop straw is a valuable resource. my country is a large agricultural country with abundant straw resources. China's annual output of crop straw is about 700 million tons, ranking first in the world. However, these crop straws have not been fully utilized, and a large number of incineration has become a major social problem. , not only wastes resources, but also seriously pollutes the environment. The solidification of straw is a good way to solve this problem; the ring die forming machine adopts ring-shaped die holes, which has the advantages of high productivity and low energy consumption, and has gradually become the current straw solidification Forming mainstream equipment; forming temperature is an important factor affecting the efficiency and service life of the ring-mode straw briquetting machine; but the constant forming temperature is difficult to control, the main reason is that the ring-mode straw briquetting machine is in the working process due to the straw material in the ring The strong extrusion and friction of the mold and the pressure roller will generate a lot of heat, which will be transferred to the ring die, causing the ring die to continue to heat up, making the straw forming poor in stability or even impossible to form, and easy to block

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