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Graphite purification wastewater treatment process and neutralizing device applied to process

A waste water and pumping pipe technology, applied in the direction of neutralization water/sewage treatment, etc., can solve the problems of unreacted waste water and the inability to mix waste water, etc., and achieve the effect of fast mixing and uniform mixing

Inactive Publication Date: 2019-10-11
青岛洛唯新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the process of neutralizing the existing waste water in the neutralization tank, it is only by adding neutralizing materials such as lime and sodium hydroxide to the waste water, and then using stirring equipment for stirring. The existing stirring equipment cannot be neutralized. The wastewater in the tank is fully stirred, especially the wastewater near the side wall and bottom of the neutralization tank, so that unreacted wastewater is prone to appear in the neutralization tank, so that the pure water after the final treatment by the pure water treatment system There is a certain amount of acidity in the water

Method used

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  • Graphite purification wastewater treatment process and neutralizing device applied to process
  • Graphite purification wastewater treatment process and neutralizing device applied to process
  • Graphite purification wastewater treatment process and neutralizing device applied to process

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Embodiment one: a kind of neutralization device, see attached figure 1 And attached figure 2, including a tank body 1, a water inlet pipe 11 fixedly connected to the side of the tank body 1 near the top, a water outlet pipe 12 fixedly connected to the side of the tank body 1 near the bottom, and a water outlet pipe 12 fixedly connected to the side of the tank body 1 away from the water outlet pipe 12 The suction pipe 21 at the bottom position, the circulation pump 2 fixedly connected to the suction pipe 21, the circulation pipe 22 fixedly connected to the circulation pump 2, the rotating shaft 3 that is rotatably connected to the top of the tank body 1 and extends into the tank body 1, The connecting pipe 4 that is arranged on the top of the rotating shaft 3 and is rotationally connected with the rotating shaft 3, the stirring paddle 8 fixedly connected on the outer periphery of the rotating shaft 3 and located in the tank body 1, and the stirring paddle 8 fixedly conn...

Embodiment 2

[0043] Embodiment two: a kind of graphite purification wastewater treatment process comprises the following steps:

[0044] a. Residue separation: the pure acid is separated from the waste water through a filter press, and the pure acid is purified and then recycled;

[0045] b. Wastewater neutralization: the separated waste water is sent into the tank body 1 through the water inlet pipe 11. When the liquid level of the waste water in the tank body 1 is higher than the suction pipe 21, the waste water in the tank body 1 is pumped out through the suction pump. When controlling the water inlet speed of the water inlet pipe 11 to be greater than the water pumping speed of the water suction pipe 21, until the water inlet is completed;

[0046] Add neutralization solution in the middle of the storage tank 6, the neutralization solution contains sodium hydroxide, lime powder and water, the weight ratio of the three is 2:3:9, and the neutralization solution is slowly sent into by t...

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Abstract

The invention discloses a graphite purification wastewater treatment process and a neutralizing device applied to the process, relates to the technical field of wastewater treatment, and solves the problem of the incompleteness of wastewater neutralization in existing wastewater treatment. The process is technically characterized in that the neutralizing device comprises a tank, a water inlet pipe, a water outlet pipe, a water pumping pipe, a circulating pump fixedly connected to the water pumping pipe, a circulating pipe, a rotating shaft, a connecting pipe, a stirring paddle and a motor; thetreatment process comprises the steps of a, separation of residues; b, neutralization of wastewater; c, filter-pressing separation; d, treatment by a pure water treatment system. In the neutralization reaction process, wastewater in the tank is circulated, and the circulated wastewater is sprayed into the tank in the rotation process through the stirring paddle so that the wastewater in each partof the tank can all flow and be stirred, the wastewater in each part can be subjected to a neutralization reaction more fully, and pure water obtained after treatment by the pure water treatment system does not easily have acidity.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, more specifically, it relates to a graphite purification wastewater treatment process and a neutralization device applied to the process. Background technique [0002] Graphite is often purified during the production process of graphite, and a large amount of acidic wastewater will be generated during the purification process of graphite. According to relevant regulations, acidic wastewater cannot be discharged directly, and must be treated before being discharged. [0003] When the existing acid wastewater is processed, it is firstly filtered by a filter press to separate the residue-like waste acid from the wastewater, and the separated wastewater is neutralized in the neutralization tank. The wastewater enters the filter press again for pressure filtration, and the particles in it are filtered out, and then the filtered wastewater is processed through a pure water treatment system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/66
CPCC02F1/66
Inventor 刘军德李炎雄李清泉
Owner 青岛洛唯新材料有限公司
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