Ammonium paratungstate automatic suction, filtration, drying and unloading integrated machine device

Abstract

The invention discloses an automatic suction filtration, drying and discharging all-in-one machine device of ammonium paratungstate. The device comprises a rack and a barrel body, wherein a bearing isarranged on the rack; a rotary shaft is arranged on the barrel body; the rotary shaft is connected with the bearing in a matching manner and is used for driving the barrel body to rotate; a filteringplate is arranged in the barrel body; the filtering plate divides the interior of the barrel body into an upper barrel body and a lower barrel body; a discharging flange, a pure water pipe interfaceflange, a compressed air pipe interface flange, a hot air pipe interface flange and a discharge pipe interface flange are arranged on the upper barrel body; a suction filtration pipe interface flangeand an air suction hole flange are arranged on the lower barrel body. According to the device, suction filtration, washing, drying and automatic discharging can be performed on an ammonium paratungstate product, so that the labor intensity is reduced, the operating environment is optimized, the product is prevented from being polluted, and the waste of materials is reduced.

Description

technical field [0001] The invention belongs to the field of ammonium paratungstate production, in particular, the invention relates to an automatic suction, filtration, drying and discharging integrated machine device for ammonium paratungstate. Background technique [0002] Ammonium paratungstate (APT) is the main raw material for the production of tungsten oxide. At present, the main production process in China is to use ion exchange or extraction process to remove impurities from the sodium tungstate feed liquid obtained by grinding and decomposing tungsten concentrate, and transform it into ammonium tungstate feed liquid. , The obtained ammonium tungstate feed liquid is then pumped into the discontinuous crystallizer after the molybdenum removal process for evaporation and crystallization to obtain ammonium paratungstate crystals. [0003] After the crystallization is completed, the product in the intermittent crystallizer needs to be separated from the crystallization ...

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Problems solved by technology

[0004] As mentioned above, in the current APT production process, the product is separated from the mother liquor through the suction filter tank. Since the mother liquor is mainly ammonium tungstate feed liquid and the temperature is relatively high at about 80-95°C when discharging, the workplace is often filled with ammonia smell, which is not easy. It is beneficial to the health of employees; the suction and filter tanks made of PP and PPH are prone to aging, deformation or even leakage under high temperature, and the filter cloth is aging and damaged. The repair of equipment and the replacement of filter cloth all increase the production cost; Manually shoveling up the materials, this process is very labor-intensive for the employees, and the materials may be dirty during the transfer process, and they are easy to scatter and cause waste

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