Authors: Pratham Bante, Shubham Munshi, Saurabh Gawai, Harshal Pote, Shubham Mawande, Swapnil Nimkarde
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India is a land of agriculture which comprises of small, marginal, medium and rich farmers. Small scale farmers are very interested in manually lever operated knapsack sprayer because of its versatility, cost and design. But this sprayer has certain limitations like it cannot maintain required pressure; it leads to problem of back pain. However, this equipment can also lead to misapplication of chemicals and ineffective control of target pest which leads to loss of pesticides due to dribbling or drift during application. This phenomenon not only adds to cos of production but also cause environmental pollution and imbalance in natural echo system. This paper suggests a model of manually operated multi nozzle pesticides sprayer pump which will perform spraying at maximum rate in minimum time.
Agriculture plays a vital role in Indian economy. Around 65% of population in the state is depending on agriculture. Although its contribution to GDP is now around one sixth, it provides 56% of Indian work force. The share of marginal and small farmer is around 81% and land operated is 44 % in 1960-61. As far as Indian scenario is concerned, more than 75 per cent farmers are belonging to small and marginal land carrying and cotton is alone which provide about 80 % employment to Indian workforce. So, any improvement in the productivity related task help to increase Indian farmer’s status and economy.
The current backpack sprayer has lot of limitation and it required more energy to operate. The percentage distribution of farm holding land for marginal farmers is 39.1 percentage, for small farmers 22.6 percentage, for small and marginal farmers 61.7 percentage, for semi-medium farmers 19.8 percentage, for medium farmers 14 percentage and for large farmers 4.5 percentage in year 1960-61. Clearly explain that the maximum percentage of farm distribution belonged to small and marginal category.
The project is a Pesticide/Fertilizer Sprayer mounted on a Cart which is operated mechanically without any external source of energy.
The aim of developing such a concept is primarily because of preventing the 3 major drawbacks of the pump being used currently Firstly, the farmer has to carry the entire weight of the pesticide spraying (approx. 20+ kg) pump on his shoulder; secondly, he has to continuously use his one hand to pump using the handle; thirdly, reduction in spraying time. All these factors have been taken care of in this project along with being cost effective, light in weight and good in strength. The pump already available with the farmer can be directly used in this mechanism. The handle of the sprayer will be mechanically operated through the rotating shaft of the wheels of the cart using an efficient mechanism. This will result into the reciprocating motion of the piston and hence pumping will be done. The user will now just have to push the cart and the whole mechanism will be operated with ease. This will be a case of Pure Mechanical Automation.
A. Problem Summary
The farmers who use these types conventional backpack sprayer faces many types of problems like fatigue, tiredness, pain in spiral cord and muscles etc. Following problems can take place by use of this conventional type of pump:
B. Common Problems
II. LITERATURE REVIEW
A. Aim of this project is that the farmer need not carry the entire pesticide sprayer pump on his shoulders but just pull/push the mechanism mounted on the trolley to operate the pump and spray the pests. This makes the farmer feel comfortable, relaxed and less tiresome.
B. To reduce human efforts due to the constant pumping action for creating pressure inside the pesticide sprayer and thereby provide a suitable environment for the user reducing the fatigue load acting on the body. As discussed previously, the farmer has to continuously keep on pumping using one of his hands and spray the pests on the crops using the other hand. This at a long run is a tiresome and cumbersome job and the farmer slowly loses interest from it.
C. This project focuses on the problem of health-related issues of the farmer (operator). Majority of them don’t use any precautions like face-masks and hand-gloves against the hazardous chemicals and work in direct contact with it. Consequently, this harms the farmer as the spray in the conventional method directly hits the face. Multi-nozzle is used and hence larger area of field can be sprayed at faster rate.
A. Four Bar Mechanism
A four bar linkage is also called as four bar is a simplest movable chain linkage. It consists of four bodies, bar or links. These links are connected by a group of 4 joints
Pascal’s law: in a fluid at rest in a closed container, a pressure change in one part is transmitted without loss to every portion of the fluid and to the walls of the container.
VII. FUTURE SCOPE
The gear ratio we have used in this project is 1:2 which can be varied according to the need and design in order to obtain variety of performances in the sprayer. More number of nozzles can be utilized. Higher capacity bag pack sprayer can be used.
A. Manual Harvesting Cost
Amount paid to the labour for one day - Rs 300 per labour Total number of labour required in general to spraying I acre farm-6
Total amount paid to the labour-6*300-Rs.1800
Total cost in one day-Rs. 1800.
B. Harvesting cost using Crop Reaper
Quantity of petrol require for 1 to 1 acre = 4 litre
Cost of petrol per litre =Rs.121
Total cost of petrol for 1 acre farm for a day=4*121=484
Amount paid to the labour = Rs.300
Total cost = Total cost of petrol + Amount paid to the labour + Maintenance
Amount saved by one day =1800-934
1) The suggested model has removed the problem of back pain, since there is no need to carry the tank on the backbone 2) and solder. 3) More no. of nozzle which cover maximum area of spray in minimum time at maximum rate. 4) Proper adjustment facility in the model with respect to crop helps to avoid excessive use of pesticides which result 5) into less pollution. 6) Imported hollow cone nozzle should be used in the field for the better performance. 7) Muscular problem is removed and there is no need to operate lever. 8) This alone pump can use for multiple crops. 9) After having a trial, we have found that one finds it easy to operate push type machine. 10) The pump can deliver the liquid at sufficient pressure where output of the nozzle in1min is 0.3 and spray width 0.4m 11) from calculation so that it reaches all the foliage and spreads entirely over the spray surface. 12) It is little heavy but efficiently working in rough conditions of farm. It is economical therefore affordable for all 13) kind of farmers. 14) It requires comparatively less time for spraying so we can get more fields spraying per day. It is cost effective 15) than the existing spraying pumps available in the market as no direct fuel cost or cost for maintenance is needed for this. 16) It is upgraded design of manually operated sprayer and weeder which will be helpful for small land farmers. 17) It consumes less time and saves money as compared with conventional spraying and weeding. 18) This machine does not require any fuel or power so maintenance is less.
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