Single drive type roller press

Abstract

The invention discloses a single drive type roller press, which includes a rack. The rack is fixedly provided with a fixed roll and is slidably provided a movable roll, wherein the position of the fixed roll is fixed, and the movable roll and the rack can move relatively to adjust the distance between two rolls. A feeding device is arranged above the fixed roll and the movable roll. The rack is also provided with a thrust system, which is connected to the movable roll. A power system connected to the movable roll is mounted above the rack. The roller press provided in the invention adopts a single drive mode to provide rotation power to the two rolls, its installed power is lower than that of a roller press employing a dual-drive structure. With a simple and reliable structure, the single drive type roller press disclosed in the invention is convenient, economical and practical, and has low installation and maintenance costs.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a herbicidal composition for controlling weeds in direct-seeded rice fields. Background technique [0002] Rice is the major cereal crop, and rice is the staple food for one-third of the world's population, accounting for almost two-thirds of its food. my country has a long history of rice production and is distributed in a vast area. The planting area spans five climatic zones from north to south: cold temperate zone, mid-temperate zone, warm temperate zone, subtropical zone and tropical zone. The total output ranks first in the world. Rice plays a pivotal role in production, and the stable and increased production of rice is of great strategic significance to my country's food security. With the large-scale planting of rice, the weeds in rice fields have attracted people's attention day by day. According to the report of the Food and Agriculture Organization of the Unite...

AI Technical Summary

Problems solved by technology

This agent has a good control effect on older barnyardgrass, but the cost of using the agent is relatively high, which limits the large-scale application of the agent

At the same time, penoxsulam is not very effective in controlling broad-leaved weeds, while fluroxypyr is an excellent active ingredient in controlling broad-leaved weeds

Penoxsulam and fluroxyfen alone have many shortcomings, the herbicidal spectrum is not wide enough, and some weeds cannot be controlled when the two herbicides are used alone, and the cost of using penoxsulam alone is high. When the two preparations are used in combination, it is difficult to grasp the method of use, operation, and dosage, which leads to wrong application

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