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Reports on SSI Cluster Development Programme |
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Monitoring and upgradation of existing firing facilities in three selected Pottery & Ceramic units at Khurja.
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Standardization of process parameters for Commercial Exploitation of Neem based products.
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- PROJECT PROPOSAL
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MONITORING AND UPGRADATION OF EXISTING FIRING FACILITIES IN THREE SELECTED POTTERY & CERAMIC UNITS
AT KHURJA UNDER UPTECH SCHEME
OF OFFICE OF THE DEVELOPMENT COMMISSIONER
(SMALL SCALE INDUSTRIES),
MINISTRY OF SSI, GOVT.OF INDIA, NEW DELHI |
- TIME FRAME
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6 Months |
- CONSULTANCY GROUP FROM MONITORING
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Shri S. Chakrabarti, Scientist-in-Charge, - Advisor
Shri C. S. Prasad, Dy.Officer-in-Charge, Consultant
Shri D.P. Karmakar, Sct.-B - Member
Shri K.C. Singh, T.O. - Member |
- BACKGROUND
Khurja has the largest agglomeration of small-scale ceramic industries in India. At present, there are more than 500 units engaged in production of stoneware crockery, bone china, electrical insulator, sanitary ware and decorative items. Due to spiraling rise of cost of fuels, raw materials and labour charges as well as globalization of the market in India, they are facing stiff competition as such facing acute problems for sustenance. Most of the units follow more or less similar technology for manufacturing the above mentioned items. Many of them switched over to ceramic fibre lined shuttle kiln and tunnel kiln firing systems to reduce level of pollution, fuel cost and increase productivity. At present they could achieve 18-20% energy efficiency in Shuttle kiln and 35-45% in Tunnel kiln. It has been observed that, there is further scope of increasing energy, provided appropriate steps are taken. Since manufacturing practice is common to all of them, implementation of improved technology in some of the units may lead to replication / dissemination the outcomes to other units.
Keeping this in view, the Development Commissioner, Small Scale Industries (DCSSI) entrusted Tate Energy Research Institute (TERI) for undertaking a modernization programme for the pottery industry in Khurja. Accordingly, TERI conducted a Survey-cum-Diagnostic study of Khurja Pottery Industries in collaboration with Central Glass & Ceramic Research Institute (CGCRI) Khurja Centre and submitted a detailed report to the DCSSI.
The report suggested improvement in many areas such as manufacturing, firing, energy conservation , pollution control etc. To begin with, Firing system has been chosen to improve the efficiency of furnace, its productivity and quality of the fired ceramic products. From this report, it has been transpired that after taking appropriate measures fuel / energy consumption for operating Tunnel / Shuttle kilns can be reduced by 15-20%. Potential areas are identified as stated below:
- Replacement of conventional low air pressure burner by mono-block automatic off-on-burners.
- Replacement of Sagger by Decker plates and tiles with props (Bats & props) for loading wares.
- Replacement of conventional kiln cars with strong but low thermal mass kiln cars.
- The scope of work includes the following:
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On the basis of the diagnostic study carried out by the Tata Energy Research Institute, New Delhi and the discussions held with the Khurja Pottery Manufactures' Association (KPMA), following three measures have been identified for implementation under the modernization plan in following three units:
- M/s Bhatwara Industries
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Installation of Auto-on/off burner |
- M/s Naresh Potteries
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Use of Decker Plates in place of Saggers |
- M/s Gulraj Industries
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Reduction in Dead Weight of Trolley |
- Implementing & Monitoring Agency
- KPMA was nominated as the Nodal agency for implementing the above measures.
- CGCRI was nominated as the monitoring agency to monitor the benefits out of the implementation of the above.
- Financial details:
The project cost was Rs.31.3 lakh which includes the cost of implementation, Consultancy fee of CGCRI, khurja for monitoring the project , purchase of equipments for monitoring , organizing seminar for dissemination of information on benefits arising out of the above measures and documentation. Government of India's support to the project was to the tune of Rs. 22.4 lakh. The balance amount was provided by the by the pioneering units where the demonstration plant was set up. A sum of Rs. 6.0 lakh was met from the above project cost towards the consultancy fee of CGCRI, khurja for monitoring the project and purchase of equipments for monitoring.
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Final Work Report |
- M/s Naresh Pottery - Use of decker plate in place of sagger.
Pottery items are placed inside an earthen pot called Sagger and put inside the furnace on trolley for firing. The space utilization was not found optimum due to this arrangement. Sagger was, therefore, replaced by Decker Plate. Gas analysis was conducted to ascertain the proper combustion inside the furnace. The details in connection with changing the cut saggers to decker plates and benefits from them are furnished below: |
(i) |
Size of decker plate |
- ( 15"x14.5"x1" ) |
(ii) |
No. of decker plate in each platform |
- 8 Nos. |
(iii) |
No. of platform |
- 6 No. ( Average ) |
(iv) |
Weight of each decker plate |
- 6.5 kg. |
(v) |
No. of props used in each platform |
- 15 |
(vi) |
Size of props |
- 7"x 2" Ø dia
- 5" x 2" Ø dia
- 4" x 2" Ø dia
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(vii) |
Wt. of each prop |
- 7" x 2" dia
- 5" x 2" dia
- 4" x 2" dia
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- 1 Kg. - 700 gm - 620gm |
(viii) |
Total No. of Decker plate in each trolley |
- 6 x 8 = 48 Nos. |
(ix) |
Wt. of Decker plate in each trolley |
- 48 x 6.5 Kgs. = 312 Kg. |
(x) |
Total No. of trolley |
- 24 |
(xi) |
Total wt. of Decker plate inside the kiln |
- 24 x 48 x 6.5 Kgs. |
- 7488 Kg. |
(xii) |
Total No. of Props for loading of guy insulator (LT) |
- 24 x 15 x 6 |
- 2160 Nos. |
(xiii) |
Total wt. of 5" props for (xii) |
- 2160 x 700 gm |
- 1512 Kg. |
(xiv) |
Total wt. of Decker plates + Props |
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- 9000 Kg. |
(xv) |
Type of Insulator loaded L.T. Guy insulator |
- 110 x 75 x 75 mm3 |
(xvi) |
No. of items loaded in each trolley
- Top platform
- Middle + Bottom platform
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- 25 x 8 = 200 Nos.
- 21 x 8 x 5 = 840 Nos.
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(xvii) |
Wt. of item (LT Guy Insulator ) loaded in each trolley
- 200 x 0.750
- 840 x 0.750
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- 150 Kg.
- 630 Kg.
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(xviii) |
Total wt. of LT Guy insulator on one trolley |
- 780 Kgs. |
(xix) |
Total wt. of L.T guy insulator inside the kiln - 24 x 780 |
- 18720 Kg. |
(xx) |
Oil consumption |
- 700 lit./day |
(xxi) |
Ratio of wt. of Insulators loaded and dead
load (Decker plates prop) |
- ( 1 : 0.48 ) |
(xxii) |
Oil consumption (wt. basis) % |
- 3.47 % |
(xxiii) |
Total cost of fuel - Rs. 20 x 700 |
- Rs. 14,000/- |
(xxiv) |
Total cost of Insulator = Rs. 11.00 x 18720 Kg. |
- Rs. 2,05,920/- |
(xxv) |
Ratio of fuel & product on cost basis |
- 1 : 14.71 |
(xxvi) |
Cost of each plate |
- 367.20 |
(xxvii) |
Cost of each prop |
- 50.70 |
(xxviii) |
Cost of total plate
1152 X Rs. 367.20 |
- Rs. 4,23,014.40 |
(xxix) |
Cost of total prop
2160 X Rs.50.70 |
- Rs. 1,09,512.00 |
(xxx) |
Total cost of Decker plates & prop
( XXVII + XXVIII) |
- Rs. 5,32,526.00 |
(xxxi) |
No. of saggar - 48 x 24 |
- 1152 Nos. |
(xxxii) |
Cost of sagger = 1152 x Rs. 55/- |
- Rs. 63360/- |
(xxxiii) |
Life of sagger |
- ~ 20 cycle |
(xxxiv) |
Life of Plate |
- ~ 100 cycle - (5 times of saggar) |
(xxxv) |
Cost of saggers on the basis of life |
- Rs. 3,16,800/- |
(xxxvi) |
Extra cost required to use Decker plate |
- Rs.2,15,726/- |
(xxxvii) |
Weight of Insulator produced using Decker Plate |
- 18720 kg |
(xxxviii) |
Weight of Insulator produced using Cut Saggars |
- 13824 kg |
(xxxix) |
Production increase of Insulator in 24 hrs |
- 4896 kg. (35.42 %) |
(xxxx) |
Cost of extra insulator Rs. 11 X 4896 |
- Rs.53,856/- |
(xxxxi) |
If profit is 5 % of Rs. 53,856/-, the profit will be |
- Rs.2692/- per day. |
(xxxxii) |
To recover extra of expenditure Rs. 2,15,726/- |
- Time required to recover = 80 days. |
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Therefore on the basis of the calculation above, we can say that the extra benefit after implementation of Decker plates considering oil consumption to be constant at M/s Naresh Potteries, Khurja are as under :
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- Productivity increased - 35.42 %
- Fuel Saving per Metric Ton of Product - 13.24 Ltrs. (Rs. 265.00).
- Production increased per day - 4896 Kg. therefore saving of fuel will be 64.82 liter, (Rs.1296.00) per day
- Pay back period - 80 days
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Gulraj Industries - replacing of conventional kiln car with low thermal mass kiln car.
The kiln cars are like train bogies designed to place the green products for firing at respective maturing temperature of the products in shuttle or tunnel kiln. The kiln cars are constructed with the refractory and insulating bricks. The bricks are heavy and absorb more heat during firing cycle. Heat energy supplied to the kiln is absorbed by kiln cars, products, kiln walls and flue gas. More than 55% of the total heat energy supplied to the kiln is absorbed by the kiln cars. If the low thermal mass cars are used in conventional one, the benefit will be of insignificant amount with the saving in the fuel as well as saving of time to cool the kiln cars during production, which will be helpful to increase the production. In this connection the modification in the kiln cars were made by using castable block and ceramic fibre. The firing was conducted on two different days to know the benefit from the modification made in the kiln car.
The following modifications were made at M/s Gulraj Industries, khurja to reduce the weight of the kiln cars.
- Ceramic fibre blankets were used at the base of the cars instead of refractory bricks.
- Use of light weight thin insulating castable blocks at the side of the kiln car instead of heavy refractory blocks.
- Use of hollow pillars for supporting decker plates instead of refractory bricks.
- Use of cordierite plates instead of refractory plates.
The details of the kiln car used at M/s Gulraj Industries Junction Road, Khurja are furnished below:
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1. |
Length of kiln |
18' |
2. |
Inside width of kiln |
44.5" + 18" + 18" |
3. |
Inside height above the kiln car |
7' |
4. |
Working width |
44.5" |
5. |
Working height |
7' |
6. |
Length of the kiln car x W |
72"x 44.5" |
7. |
No. of cars inside kiln |
3 |
8. |
Size of the plate |
17.5" X 20.5" |
9. |
Weight of the plate |
12.5 Kg. |
10. |
No. of plate / trolley |
80 |
11. |
Total wt. of plate |
1000 x 3 = 3000 Kg. |
12. |
Size of pillar |
9" x 4' x 2.5" |
13. |
No. of pillar |
90 x 3 = 270 |
14. |
Wt. of pillar |
315 x 3 = 945 Kg. |
15. |
Type of pillar / (Refractory) |
Sillimanite |
16. |
Brick lining on trolley Base |
HKF |
1. |
No. of Layer |
4 Nos. |
2. |
Type of Bricks used
(a). H. F. K.
(b). Refractory Brick |
9" x 4.5" x 2.5"
9" x 4.5"x 2.5"
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3. |
No. of Insulating Bricks |
67 Nos. per trolley |
4. |
Wt. of Brick |
1100 gm. per brick |
5. |
No. of refractory brick |
203 Nos. |
6. |
Wt. of refractory brick |
5.0 Kg. |
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An experiment was conducted by CGCRI, Khurja for flue gas analysis.
The details of results observed before and after conversion of the kiln car are furnished below: |
S.No. |
Particulars |
Before Conversion |
After Conversion |
1. |
No. of Kiln car |
3 |
3+3 |
2. |
Size of the kiln car |
72"x44.5" |
72" x 44.5" |
3. |
Refractory lining on kiln car |
4 layers |
3 layers |
4. |
Type of refractory bricks/block used |
HFK/IS-8 |
HFK/LTM Insulating castable, ceramic fibre |
5. |
No. of HFK brick |
67 |
140 |
6. |
Total wt. of HFK brick (1.62 Kg.) |
108.5 Kg. |
226.8 Kg. |
7. |
IS-8 refractory brick (3.85 Kg.) |
203 |
--- |
8. |
Total wt. of IS-8 refractory brick |
781.6 Kg. |
--- |
9. |
No. of LTM Block |
--- |
2 |
10. |
Total wt. of LTM Block |
--- |
40 Kg. |
11. |
Wt. of Ceramic fibre used |
--- |
3.5 Kg. |
12. |
Type of decker plates |
Ordinary refractory |
Cordierite |
13. |
No. of decker plates |
80 No. |
80 Nos. |
14. |
Size of the decker plate |
17.5" x 20.5" x 1" |
18" x 21" x 1" |
15. |
Wt. of decker plate |
12.5 Kg. |
13.0 Kg. |
16. |
Total wt. of decker plate |
1000 Kg. |
1040 Kg. |
17. |
Nos. of Prop |
126 |
126 |
18. |
Wt. of each prop |
3.0 Kg. |
0.85 Kg. |
19. |
Type of Prop |
Ordinary Refractory |
Cordierite-Mullite Hollow Block |
20. |
Total wt. of Prop |
378 Kg. |
107.1 Kg. |
21. |
Total wt. of refractory mass of each trolley |
2268 Kg. |
1417.4 Kg. |
22. |
Difference in wt. of kiln car before and after conversion |
850.6 (+) |
850 ( -) |
23. |
No. of piece fired per trolley |
3650 Nos. |
3900 Nos. |
24. |
Wt. of product |
912.5 Kg. |
975 Kg. |
25. |
Cost of fired product per firing |
Rs. 83950/- |
Rs. 89700/- |
26. |
Oil consumption per firing |
1200 Liters |
1200 Liters |
27. |
Cost of fuel per firing |
Rs. 25,200/- |
Rs. 25,200/- |
28. |
Fuel consumption per MT product |
1315 liters per MT |
1230.8 liter per MT |
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The results indicated as below :
Reduction in trolley weight = 850 Kg. (37.48 %)
Saving of fuel per firing = 84.2 liter ( 6.4%)
Benefit per firing = Rs. 5,750/- (or 6.85 %)
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- M/s Bhatwara Ceramics - installation of Auto On / Off Burner.
An auto On/Off gas fired burners was installed at M/s Bhatwara Industries, Khurja by replacing the old fired conversion burners. CGCRI conducted experiment for flue gas analysis.
The detail results before installation and after installation of auto on/off burners in tunnel kiln for firing of crockery ware are furnished below: |
S.No. |
Particulars |
Initial stage |
After intervention |
1. |
Type of Burner |
Ordinary |
Auto on/off gas fired burner (Wesman) |
2. |
No. of burner |
4 |
4 |
3. |
Fuel consumption per day |
650 liter |
380 Kg. |
4. |
Type of fuel |
LDO |
LPG |
5. |
Cost of fuel |
10400/= |
9880/- |
6. |
No. of pieces fired |
30,000 |
30,000 |
7. |
Use of electrical power for oil pump |
1 HP |
--- |
8. |
Use of electrical energy |
17.9 Unit |
--- |
9. |
Charge of electrical energy |
Rs.71.60/ day |
--- |
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Fuel |
Electrical |
Total saving per firing |
Rs. 520 |
Rs. 71.60 |
Per month (20 days) |
Rs. 10,400 |
Rs.1432/- |
Total saving per month |
Rs. 11,832/- |
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Saving of fuel cost |
5% |
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For any information, interested person may contact :
- Technology Management Division,
OFFICE OF THE DEVELOPMENT COMMISSIONER
( SMALL SCALE INDUSTRIES),
Ministry of Small Scale industries,
Govt. of India,
7th Floor, Nirman Bhawan,
New Delhi -110011
Ph.- 011- 23010091/ 23012249
- Central Glass & Ceramic Research Institute,
Khurja Centre, G.T.Road, Khurja-203131 (U.P.),
Ph-91011-242501, 245081,
Email: cgcrikc@indiatimes.com , cgcrikc@yahoo.co.in
(a laboratory under CSIR, Ministry of Science & Technology, Govt. of India).
- Khurja Pottery Manufacturers' Association (KPMA),
Industrial Estate, G.T. Road, Khurja, U.P.
Ph. - 05738242425
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- PROJECT PROPOSAL
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STANDARDIZATION OF PROCESS
PARAMETERS FOR COMMERCIAL
EXPLOITATION OF NEEM BASED
PRODUCTS UNDER UPTECH SCHEME
OF OFFICE OF THE DEVELOPMENT
COMMISSIONER (SMALL SCALE
INDUSTRIES), MINISTRY OF SSI, GOVT.
OF INDIA, NEW DELHI |
- TIME FRAME
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2 Years |
- CONSULTANCY GROUP FROM MONITORING
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Shri S. Chakrabarti, Scientist-in-Charge, - Advisor
Shri C. S. Prasad, Dy.Officer-in-Charge, Consultant
Shri D.P. Karmakar, Sct.-B - Member
Shri K.C. Singh, T.O. - Member |
A project on ' Standardization of process parameters for commercial exploitation of Neem based products' has been sponsored by Office of the Development commissioner(Small Scale Industries), Ministry of SSI, Govt. of India, under UPTECH scheme.
- The objective of the project were to search for standard processes for commercial exploitation of Neem based products and create awareness in Small Scale Sector. Therefore, attempts have been made for (i) Collection of information relating to availability of neem, geographical distributions of neem trees/ seeds, prevailing harvest and collection practices, post harvesting processing and storage techniques (ii) separation of bitter constituents from neem seed kernels and to obtain good quality of oil and cake and (iii) Utilization of neem isolates viz. bitters, oil and cake, in product development like pesticides, skin care and oral hygine products.
- During the first phase of the project, the emphasis of the project has been on the collection for information relating to availability of Neem, geographical distribution of neem trees/ seeds, prevailing harvest and collection practices, post harvesting processing and storage technique. Detailed literature survey has been thoroughly dealt and documented.
- Commercial techniques for processing of neem oil like refining (alkali & solvent) and bleaching were carried out for obtaining neem oil low in FFA and Colour. It was observed that the alkali refining, solvent refining and bleaching processes only moderately improved the neem oil in terms of FFA and Colour.
- In the later phase of the project two processes were developed for extraction of bitters and for obtaining good quality oil and cake from crushed neem seed kernels. Out of these processes developed process No. I (Soxhlet Extraction) & II (Cold Extraction/Leaching with Solvent System without Acid) were proved to be best for extraction of bitters having high azadirachin content, light coloured oil with low FFA and biters free deoiled neem cake.
- On the basis of lab. Experiments different batches on pilot scale experiments of process II were also carried out in the existing solvent extraction unit of the center. Economics of these experiments were also carried out and was very much encouraging.
- The methodologies so far developed yield four products (i) oil rich in FFA containing some Quantity of bitters (ii) oil with reduced FFA content, free from bitters (iii) cake in granular form which is also free of bitters (iv) bitters in crystalline or semisolid form with high azadirachtin.
- Based on the neem isolates (bitters, oil and cake), center has developed following products:-
- Neem oil/bitters based pesticides
- Neem Coated Urea
- Neem Cold/Vanishing/Shaving Creams
- Neem Face Pack
- Neem Soap
- Neem Mouthwash
- Neem Herbal Phenyl
- Neem oil based cold cream has been tested in Indian Toxicological Research Centre, Lucknow for preclinical trials and report was very encouraging.
For any information, interested person may contact :
- Technology Management Division,
OFFICE OF THE DEVELOPMENT COMMISSIONER
( SMALL SCALE INDUSTRIES),
Ministry of Small Scale industries,
Govt. of India,
7th Floor, Nirman Bhawan,
New Delhi -110011
Ph.- 011- 23010091/ 23012249
- Principal Director,
Fragrance & Flavour Development Centre,
Industrial Estate, G.T. Road,
P.O. Makrand Nagar,Kannauj- 209726 (U.P)
Ph.- 05694-34465, 34791
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