Agricultural Processing Equipments - Agrl Waste Utilization Technologies

By TamilNadu Agricultural University on 05 Feb 2019 | read

1.Compost PelletizerImage title

1. Function                                          : To make pellets from compost.

2. Specification                       
   (a) Overall dimension                    : 1000 x 900 x 900
          (L x B x H, mm)
   (b) Capacity                                     : 100 kg/h

   (c) Power required                          : 5 hp electric motor

3. General Information                      

The compost mixture is fed into the barrel housing the screw auger.  The screw  conveys the compost against the die assembly and extrude it as pellets.  A rotating knife cuts the pellets into small pieces.  The pellets are passed over an oscillating tray and collected at the bottom as globules.

4. Cost of the unit (approx)                : Rs.37, 000/-

5. Cost of operation                            : Rs.15/h

6. Salient features

  • Pellets of uniform size can be obtained.
  • Pellets can be easily distributed in the field as soil manure.
  • More suitable for soil application at specific locations.

2.Briquetting Machine

Image title                                                Briquetting Machine 

1. Function To make briquettes from  coir pith.
2. Specification
(i) Overall dimension
(L x B x H, mm)
 765 x 350 x 990
(ii) Capacity 125 kg/h
(ii) Power required   5 hp electric motor
3. General Information The machine consists of a feed hopper, an over hanging screw shaft, a barrel housing and an extruder die pipe.  The screw shaft is mounted at one end by ball bearings and the other end is over hanging freely.  The barrel assembly has been housed over the screw shaft and mounted on a stand.  The free end of the screw shaft is tapered to a length of 30 cm and housed inside an extruder pipe of same length.  The screw shaft is coupled directly to a reduction gear unit (10:1) and is driven by a 5 hp electric motor.  Fibre free coir pith and cowdung are mixed at 6:1 ratio with required quantity of water so that it will form briquettes during operation.
4. Cost of the unit (Approximate) Rs.45,000/-
5. Cost of operation Rs.20/h
6. Sailent Features 
  • Continuous horizontal type extrusion  machine.
  • Briquettes are formed by compression.
  • Produces hollow briquettes with a calorific value of 3000

3.Adhesive from Tamarind Kernel Powder (TKP)

1. Function                              : To utilize tamarind kernel for the production of  industrial adhesive

2. General Information           :

The tamarind kernel is extracted during the pulping process of tamarind. The kernels are not finding utilisation in the industry level, rather used as adulterants in the foods. The rich content of carbohydrate and protein makes it suitable for the production of adhesives. In the process of manufacture, the tamarind kernel powder is mixed with hot water 200%, glucose 5%, formalin 4% and sodium carbonate 12% by weight. The adhesive prepared by the above said process have good strength qualities as that of the commercially available product.

3. Cost of the unit (Approx)   : An investment of about Rs. 75,000 will be  required for cottage level production.
4. Cost of operation                : Rs.20 per kg of adhesive

5. Salient features

  • Suitable for the production of adhesive from tamarind kernel powder.
  • Suitable for production at cottage industry level.
  • Suitable for application in wood works, paper industries, etc

4.Production of Particle Board from CoirpithImage title

1. Function                  : To utilize cir pith for the production of particle board

2. General Information:
Coir pith being a waste disposed from the coir industries, pose the danger of pollution and health hazard. Being a lingo-cellulosic material, coir pith can be utilized for the production of particle board.  The process of production of coir pith particle board involves drying of the coir pith and resination using phenol formaldehyde (16%) or urea formaldehyde (20%). The resinated pith is formed into a mat of desired thickness and hot pressed at 120ºC for 15-20 minutes. This board after the formation is trimmed along the sides and suitable for use as table top and providing partition and other light works. The laminated boards will be suitable for exterior use, as the water absorption and swelling character are more for the coir pith boards.

3. Cost of operation    : Rs. 60 and  per sq. ft. of the board. 

4. Salient features

  • Finds utilisation for the coir pith
  • The boards are suitable for interior use as table top and for providing partition.

5.Production of Paper Boards Form Agricultural waste Materials

1. Function                              : To utilize agricultural wasters and farm residues for the production of paper boards.
   (b) Capacity                         :   5000 pads per month

   (c) Power required             :    Minimum 25 hp

3. General Information                      

The agricultural wqaste materials like, banana stem, peduncle, cotton stalk are rich in lignin and cellulose. They are suitable for the production of paper and paper boards. In this  technology, agricultural waste materials are digested and pulped with the addition of waste paper in the proportion of 3 :1. The pulp is spread on the autovat for the required thickness of the  paper and taken. This is dried and the surface is made smooth and utilized for the production of files and other products.
4. Cost of the unit       :  Minmum investment of rs.5 lakhs for cottage level
5. Cost of operation    : Rs. 2 per file

6. Salient features

  • Finds utilization for the agricultural waste materials.
  • The paper boards produced are eco friendly.