Regarding the method of applying salt to raw salt
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This post was last edited by sunjl1981 on 2013-1-6 at 22:34. Currently, there are two main methods for adding salt to the brine tank: one is using a belt conveyor to deliver the salt, and the other is using a bucket elevator. Salt can be supplied continuously and stably in belt conveyors, but they require a large amount of space and involve high investment costs. Hopper elevators take up less space for salt handling, but they are said to have a higher failure rate. Let’s discuss which approach would be better. # ， ， &
Our company uses bucket elevators to transport salt, and the problems that arise are as follows: 1. When the salt has a high moisture content, the bucket elevator tends to trip； 2. The discharge hopper of the bucket elevator has not been in use for very long and needs to be replaced, which will increase costs ； 3. Bucket elevators often experience the issue of the discharge bucket drifting sideways, requiring shutdown for repair. Since the salt method is not used in the belt gallery, there is no experience available.
For the first phase of our company’s project, above-ground salt tanks were used, along with variable-frequency conveyor belts for adding salt, thereby ensuring a continuous and stable supply of salt. At normal salt addition rates, the height of the salt layer remained stable, and the sodium chloride content could be kept under controlled levels. However, when the air humidity is high, the return idler tensioning device tends to accumulate salt, and the conveyor belt is prone to drifting. It is necessary to have a suitable device for removing this excess salt; salt accumulation is easier to control under the end hopper, but it occurs more easily when a plow-type unloader is used. The second phase of the project involves converting everything to underground salt treatment. The preliminary plan is to use loaders to pile the material directly into the underground salt treatment tanks. We lack experience in working with such underground salt treatment tanks, and we hope to get advice from everyone regarding aspects such as the layout of the distribution pipes (underground or on the sides) and ways to deal with the issue of salt sludge.
Our company uses underground salt dissolving tanks, with a loader being used to push the salt into the dissolving tank. The brine pool is square, and the brine distributor is arranged on the salt-side of the desalination pool. It has been operating normally for over two years. Cleaning the salt sludge is a bit troublesome; initially it was done manually, but now excavators are used for the task, which makes it much easier. The salt dissolving tank doesn’t need to be too deep; 4 meters is sufficient.
Companies that use the vacuum method to produce industrial salt should pay attention to the issue of floating during the salt dissolving process; a 1000 mm straight tube can be installed in the salt dissolving tank, extending about 1 meter below the saltwater level.
We use salt on the belt; the advantage is that the salt layer remains stable, while the disadvantage is that there is more salt on the idler belt during rainy days, which increases the workload for the operators. This post was last edited by limingshuguang on 2008-7-3 17:09.]