Continuous dehydrating method and device for explosive production wastewater and sludge
A technology for the production of wastewater and dehydration devices, which is applied in the direction of dehydration/drying/concentrated sludge treatment, etc., which can solve the problems of loose sludge structure, troublesome operation, and low dehydration efficiency, and achieve the effect of small sludge volume and compact structure
Inactive Publication Date: 2015-04-29
QINGDAO UNIV
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Problems solved by technology
Its operation is troublesome, and the dehydration efficiency is low. After dehydration, the moisture content of the solid sludge is still high (generally, the moisture content is above 75%). The sludge structure is loose and the volume is large, which is not conducive to transportation, storage and treatment.
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Embodiment Construction
[0035] refer to figure 1 , figure 2 image 3 with Figure 4 .
[0036] The present invention provides a continuous dehydration equipment for explosives production wastewater sludge, which comprises three parts: a sludge storage tank 1 , a sludge thermal dehydrator 6 and a belt conveyor 9 . Wherein the sludge storage tank 1 is a cylinder with a vertical mixer 2 inside, and the sludge produced by the acid analysis of the explosives production wastewater is discharged into the sludge storage tank and stirred into a slurry;
[0037] The sludge thermal dehydrator 6 includes a spiral preheating pipe 14, a spiral steam heating pipe 15, a cold water injection pipe 17, and a return water pipe 11, and the spiral preheating pipe 14 is connected to the return water outlet pipe 4, the steam main pipe 5, and the sludge input pipe 13 , adjustable support 16;
[0038] After the sludge is pumped into the sludge thermal dehydrator, the spiral preheating pipe uses the hot water released fr...
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The invention discloses a continuous dehydrating method and device for explosive production wastewater and sludge. The device comprises a sludge storage tank, a sludge thermal dehydration machine and a belt conveyor, wherein a sludge pipe is arranged between the sludge storage tank and the thermal dehydration machine and is provided with a sludge pump; the sludge thermal dehydration machine is provided with a spiral preheating pipe at the bottom and a spiral steam heating pipe at the upper part, and a water return pipe is arranged under the spiral steam heating pipe in the sludge thermal dehydration machine; and one side of the sludge thermal dehydration machine is provided with a sludge cooling tank in which a cold water injection pipe is arranged. By using the device disclosed by the invention, the dehydration rate of the sludge is increased, the dehydrated sludge structure is compact, and the sludge is small in size and convenient in transportation, storage and treatment. Meanwhile, any chemical agents are not needed to be added in the dehydration process, so that the pollution to the environment is reduced.
Description
technical field [0001] The invention belongs to the technical field of sludge dehydration treatment in environmental engineering, and in particular relates to a continuous dehydration device for explosive production wastewater sludge. Background technique [0002] After the explosive is produced, in order to ensure its storage stability and safety, it is usually made into explosive particle microcapsules, that is, a layer of organic wall material is coated on the surface of the explosive particle. When reused, it is necessary to emulsify the wall material with alkali and surfactant in water, filter and remove it, and use the explosive after drying, and discharge the filtrate to form a certain amount of explosive production wastewater. The wastewater contains a large amount of organic matter in wall materials and surfactants, etc., and the content of organic pollutants is high and the pollution is serious. This kind of wastewater can be treated by acid precipitation to remov...
Claims
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IPC IPC(8): C02F11/12
Inventor 柳荣展张宾郝龙云邹译慧徐泉马乐
Owner QINGDAO UNIV