Slurry pump exclusively for bauxite ore washing tailing slurry dry method processing and processing system and method thereof

Abstract

The invention belongs to the technical field of slurry pump and discloses a slurry pump exclusively for bauxite ore washing tailing slurry dry method processing and processing system and method thereof. The slurry pump is substantially characterized in that the slurry pump includes a fuel tank which is provided with driving motors and fuel pumps, electromagnetic directional valves are arranged on the fuel tank, an electromagnetic directional valve is connected with a ceramic plunger pump unit, a pump cylinder body of a pump individual is provided with a ceramic plunger, the ceramic plunger with a carriage on the top is connected with a cylinder piston of a hydraulic cylinder through a transmission rod, a vortex board is arranged on the carriage on the top of the ceramic plunger, and proximity switches which match with the vortex board and are connected with the electromagnetic directional valve are arranged on a upper beam of a the hydraulic cylinder base and on a lower beam which is on the upper portion of the pump cylinder body. According to the slurry pump, sealing effects are good, slurry can pass through a miter valve smoothly and no sand are retained, an electromagnetic directional mechanism enables a plunger pump and a fuel supply station to be installed in a spit mode, remote control of the fuel supply station and pumps are achieved, large flow delivery of pumps are achieved, bauxite ore washing tailing slurries can be processed with no tailing dam construction required, and dry method processing and exhausting is achieved.

Description

technical field [0001] The invention belongs to the technical field of bauxite tailings treatment, and in particular relates to a special mud pump for dry treatment of bauxite washing ore tailings slurry, a treatment system and a method. Background technique [0002] At present, domestic and foreign bauxite washing ore tailings slurry treatment is to achieve comprehensive utilization without the construction of tailings dams, full recycling of water without pollution, and full drying of sludge without pollution. There are roughly two technical approaches adopted: one is to add a large amount of solidified inorganic salts such as lime, fly ash, and aluminum sulfate to the tailings slurry to achieve the purpose of dry stacking after bauxite tailings slurry treatment, but The water recovered by this process is seriously polluted, the slime is not only polluted but also dry and hard, and the water and slime almost lose their use value. This process is rarely used in the bauxite ...

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Problems solved by technology

[0003] 1. Lime, fly ash and a large amount of inorganic salt coagulants need to be added to the pulp sent to the filter press, resulting in high cost and serious pollution of treated water and mud cake;

[0004] 2. There are many problems in the centrifugal mud pump feeding the filter press: A. Not wear-resistant, short life, high cost; B. Low pressure, high-concentration mud and coarse ore-containing slurry cannot be transported, and the filter press needs to be fed in the later stage It loses its effect when feeding at high pressure; C. Selecting two centrifugal mud pumps with higher pressure and larger flow rate to be used in series can meet the material demand of filter press, but the cost and energy consumption are high; D. The most prominent problem is the tailings slurry for washing When the high-concentration dense tank bottom slurry in the flocculation state is transported to the dense tank after being concentrated by the flocculant, when it is transferred through several centrifugal mud pumps, the polymer flocculant is damaged by the centrifugal rotation and the flocculation effect is completely invalid, and the flocculation state is completely destroyed. , the difficulty of mud-water separation has returned to the state of the original slurry in front of the dense pool, and the high-viscosity mud is fully uniform through the rotation of the centrifugal mud pump, which increases the difficulty of separation. Therefore, no matter how much flocculant is added, it will not work, and bauxite washing will occur. The dehydration of the tailings with a filter press and flocculant does not work. The technical misunderstanding that lime must be added to filter out the dry mud cake has long plagued the smooth progress of the dry treatment of bauxite washing tailings pulp;

[0005] 3. In recent years, the new dual-cylinder ceramic plunger mud pump has achieved certain results in slurry transportation in the ceramic industry, but there are still many problems: a. It is limited to one double-cylinder alternate work, and its maximum flow rate is too small; b. 1. The difficulty of processing large-diameter ceramic plungers restricts the production of large-flow mud pumps; c. The reversing control of the plunger is a plunger mechanism, which is prone to oil leakage, loose limit devices, and low sensitivity. The single oil supply system can only control one mud pump cylinder through the ram, which restricts the linkage configuration of multiple cylinders; d, the one-way valves for the slurry inlet and outlet are all flat valves, and the valve port platform is easy to accumulate materials to make the sealing effect Reduced, low flow efficiency, unable to transport coarse slurry

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