If a pump is used that is not specifically designed for dredging then you are creating an unnecessary difficulty right from the get go. The pump is the heart of a gold dredge, and the pump used on any dredge should be one designed specifically for gold dredging. So, if that's the way you have to go then do it (its always better to do 'something' than give up and go home. ![]() I can understand you might have difficulty sourcing correct equipment in your country. I would never personally use the type of pump you have, on a gold dredge! But. With a 6" you can do a lot of prospecting and can also do some production dredging immediately after the prospecting phase has ended. If you are going to dredge a waterway of a fair size where the overburden above bedrock is more than a few feet deep, you would be better to make a 6" dredge. a 6" dredge is a better choice if the waterway to be prospected is big enough to allow it to be maneuverable. Even a 5" dredge has its limitations for prospecting. If a professional dredger wants to prospect an area of interest by sinking numerous prospecting holes, and who needs a dredge small enough to be portable, he will chose a 5" over a 4" every time. And, if the water depth from the surface to the top of the river gravel is more than a meter, most 4" dredges won't be of much use. Where the overburden above bedrock is more than a few feet deep, as it is in most auriferous waterways, these dredges won't get a prospecting hole down as far as bedrock. ![]() ![]() They can be used to sink prospecting holes, however the holes would not be deep enough in most rivers to prove anything conclusive. they would only be of use to a professional in rapids to clean out exposed crevices with little overburden to remove. I don't know what you have in mind to dredge but as you are in Liberia my guess would be that you want to do some commercial-scale serious profit-orientated dredging! Here in Australasia a dredge this small would rarely be used by serious dredgers. A four inch dredge is essentially a recreational dredge and if you build a dredge this small you will be extremely restricted as to what you will be able to do. ( Building a small dredge ).īut before you start, and go to the trouble of building a dredge, I suggest you first give some consideration to the size of dredge you should be building. PO Box, APO/FPO, Adelaide Metro, Afghanistan, Alaska/Hawaii, Albania, Algeria, American Samoa, Andorra, Angola, Anguilla, Antigua and Barbuda, Argentina, Armenia, Aruba, Austria, Azerbaijan Republic, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, British Virgin Islands, Brunei Darussalam, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, Canada, Cape Verde Islands, Cayman Islands, Central African Republic, Chad, Chile, China, Colombia, Comoros, Cook Islands, Costa Rica, Cyprus, Czech Republic, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia, Falkland Islands (Islas Malvinas), Fiji, Finland, France, French Guiana, French Polynesia, Gabon Republic, Gambia, Georgia, Ghana, Gibraltar, Greece, Greenland, Grenada, Guadeloupe, Guam, Guatemala, Guernsey, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Iraq, Ireland, Israel, Italy, Jamaica, Jersey, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Macau, Macedonia, Madagascar, Malawi, Maldives, Mali, Malta, Marshall Islands, Martinique, Mauritania, Mauritius, Mayotte, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Montserrat, Morocco, Mozambique, Namibia, Nauru, Nepal, Netherlands, Netherlands Antilles, New Caledonia, New Zealand, Nicaragua, Niger, Nigeria, Niue, Norway, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Puerto Rico, Qatar, Republic of Croatia, Republic of the Congo, Reunion, Romania, Russian Federation, Rwanda, Saint Helena, Saint Kitts-Nevis, Saint Lucia, Saint Pierre and Miquelon, Saint Vincent and the Grenadines, San Marino, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, Sri Lanka, Suriname, Svalbard and Jan Mayen, Swaziland, Sweden, Switzerland, Taiwan, Tajikistan, Tanzania, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Turks and Caicos Islands, Tuvalu, US Protectorates, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States, Uzbekistan, Vanuatu, Vatican City State, Venezuela, Vietnam, Virgin Islands (U.S.To answer your question in detail you can find a previous thread at the following link.
0 Comments
Leave a Reply. |