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Solid-liquid mixed material treatment method and device

A technology of solid-liquid mixing and treatment methods, applied in sludge treatment, chemical instruments and methods, heating water/sewage treatment, etc., can solve the problems of limited reaction rate, uneven reaction, high equipment requirements, etc.

Pending Publication Date: 2017-11-10
CANGZHOU HUAYOU FEIDA SOLIDS CONTROL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires the addition of a curing agent and a stabilizer, which react with the sludge under solid conditions, and there are problems such as incomplete reaction, limited reaction rate or uneven reaction, and the filter press equipment is strengthened. Plate and frame filter press has higher requirements for equipment

Method used

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  • Solid-liquid mixed material treatment method and device

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Experimental program
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Effect test

Embodiment 1

[0036] A solid-liquid mixture treatment method, especially suitable for sludge treatment, comprising the following steps:

[0037] 1) Select a suitable release agent according to the characteristics of the material to be processed: the density of the release agent is between the density of the solid phase substance and the liquid phase substance to be separated in the material;

[0038] 2) Add a release agent of 20%-20 times the mass of the material to the material to be treated to form a release agent layer between the solid phase and the liquid phase;

[0039] 3) Use a centrifuge for centrifugal separation;

[0040] 4) The separated solid phase material is dried, the separated liquid phase material is evaporated or membrane separated, and the release agent is recycled;

[0041] Step 4) The specific operation method is ( figure 1 ):

[0042] a. Dry the solid-phase material, and steam the spacer out of it. The steamed spacer gas is condensed into a liquid through a condensi...

Embodiment 2

[0065] This embodiment is the equipment used for the treatment method of Embodiment 1, such as figure 2 shown.

[0066] A solid-liquid mixture material processing device, the device includes a stirring tank 2, a mixed liquid delivery pump 7, a centrifuge 3, a condensation device 4, an evaporation device 5, and a drying device 6; the stirring tank 2 is provided with a feed port 1 and the separator inlet, the mixed liquid outlet of the stirring tank is connected to the inlet of the mixed liquid delivery pump through a pipeline, the outlet of the mixed solution delivery pump is connected to the inlet of the centrifuge through a pipeline, and the solid phase outlet of the centrifuge is connected to the outlet of the drying device The inlet, the liquid phase outlet of the centrifuge is connected to the liquid inlet of the evaporator; the gas outlet of the drying device is connected to the inlet end of the condensing device through a pipeline; Connect the inlet end of the condensi...

Embodiment 3

[0069] This embodiment is a specific processing case based on Embodiment 1.

[0070] (by mass) The moisture content of Vietnamese phosphate rock slurry samples is 60%, and that of phosphate rock is 40%.

[0071] Add the above-mentioned phosphate rock slurry into the stirring tank, add the spacer carbon tetrachloride which is 1.5 times the mass of the phosphate rock pulp, and fully stir and disperse.

[0072] The phosphate rock slurry is pumped into a decanter centrifuge for solid-liquid separation. The centrifuge speed is selected to be 3000r / min. The phosphate rock slurry is separated into three phases of phosphate rock slurry, carbon tetrachloride, and water. After testing, the moisture content of the phosphate rock after centrifugation is 12.2%. .

[0073] After centrifugation, the phosphate rock is dried to an anhydrous state with very low energy consumption. Liquid phase distillation recovers carbon tetrachloride.

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Abstract

The invention discloses a solid-liquid mixed material treatment method and device. According to the method, an appropriate separating agent is selected according to the characteristics of a to-be-treated material; density of the separating agent is between densities of to-be-separated solid-phase and liquid-phase substances in the material; the separating agent 20%-20 times of the mass of the material is added to the to-be-treated material, and a separating agent layer is formed between the solid phase and the liquid phase; a centrifugal machine is adopted to perform centrifugal separation; the solid-phase material obtained after separation is dried, the liquid-phase material obtained after separation is evaporated, and the separating agent is recycled. The treatment device comprises a stirring tank, a mixed liquid transfer pump, the centrifugal machine, a condensing device, an evaporator and a drying device. The method has the advantages of being low in treatment energy consumption, good in solid-liquid separation effect and high in drying speed when applied to solid-liquid deep separation.

Description

technical field [0001] The present invention relates to the solid-liquid deep separation process technology for the products of industrial production activities, relates to the fields of environmental protection such as soil rinsing and solid waste treatment, and in particular to a method for deep dehydration of sludge, specifically a solid-liquid mixed material treatment Method and device thereof. Background technique [0002] The difficulty of sludge dehydration is not only related to the form of water in the sludge, but also related to the size of the sludge particles, the specific resistance of the sludge and the content of organic matter. The finer the sludge particles, the higher the content of organic matter, and the The greater the mud specific resistance, the greater the difficulty of its dehydration. [0003] In addition to interstitial water, a large amount of water contained in sludge is formed by sludge particles, forming a large number of capillary pores, and ...

Claims

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Application Information

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IPC IPC(8): C02F11/12C02F1/04C02F1/44
CPCC02F1/04C02F1/44C02F11/127
Inventor 闵庆新陈景新曹利军孔炯炯王杰荣李强军杨令姚广伟付园园
Owner CANGZHOU HUAYOU FEIDA SOLIDS CONTROL EQUIP
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