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Dangerous waste sludge drying system and application method thereof

A drying system and technology for waste sludge, applied in the direction of dewatering/drying/concentrating sludge treatment, etc., can solve the problems of unstable water content of sludge powder, a large amount of toxic dust, etc., to maintain stability and reduce the content of toxic particles , to ensure the effect of consistency

Pending Publication Date: 2019-01-18
YANGXIN PENGFU MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a drying system for hazardous waste sludge, which solves the problem of electroplating in the prior art by arranging components such as a combustion chamber, a drying cylinder, a pulse dust collector, and an induced draft fan. The dehydration and drying of sludge will eventually form sludge powder with unstable water content, and the problem that a large amount of toxic dust will be generated in this process

Method used

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  • Dangerous waste sludge drying system and application method thereof
  • Dangerous waste sludge drying system and application method thereof

Examples

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Effect test

Embodiment 1

[0031] see Figure 1 to Figure 2 , a hazardous waste sludge drying system, including a horizontally arranged drying cylinder 1, one end of the drying cylinder 1 is connected to the combustion chamber 3 through the feeder 2, and the other end is connected to the feeder 4, and the combustion chamber 3 The igniter is set and filled with fuel, the feeder 2 is provided with a feed port 5, the distributor 4 is provided with a first discharge port 6 and a second discharge port 7, and the first discharge port 6 passes through the delivery pipe 8 is connected with the pulse dust collector 9, and the pulse dust collector 9 is also connected with an induced draft fan 10, and the air inlet of the induced draft fan 10 is connected with the pulse dust collector 9; Discharge belt 11; Also comprise the sludge tank 12 that is used to store electroplating sludge, be provided with feeding belt 13 between sludge tank 12 and feed port 5, further, feeding belt 13 and discharge belt 11 are all For ...

Embodiment 2

[0040] A method for using a hazardous waste sludge drying system, comprising the following steps:

[0041] S1-hot air generation: ignite the fuel in the combustion chamber 3, start the first air blower 14 to supply air to the combustion chamber 3, start the motor 16 to drive the drying cylinder 1 to rotate, and start the induced draft fan 10;

[0042] S2-Material loading and drying: When the first temperature detector shows a temperature of 75°C, start the feeding belt 13 to start feeding and adjust the feeding speed according to the temperature displayed by the second temperature detector and the third temperature detector. When the temperature detector shows 73°C and the third temperature detector shows 70°C or only when the third temperature detector shows 70°C, stop adjusting the feeding speed; start the pulse dust collector 9 and the discharge belt 11 at the same time;

[0043] S3-When the first temperature detector, the second temperature detector and the third temperatu...

Embodiment 3

[0047] A method for using a hazardous waste sludge drying system, comprising the following steps:

[0048] S1-hot air generation: ignite the fuel in the combustion chamber 3, start the first air blower 14 to supply air to the combustion chamber 3, start the motor 16 to drive the drying cylinder 1 to rotate, and start the induced draft fan 10;

[0049] S2-Material loading and drying: When the first temperature detector shows a temperature of 80°C, start the feeding belt 13 to start feeding and adjust the feeding speed according to the temperature displayed by the second temperature detector and the third temperature detector. When the temperature detector shows 76°C and the third temperature detector shows 72°C or only when the third temperature detector shows 72°C, stop adjusting the feeding speed; start the pulse dust collector 9 and the discharge belt 11 at the same time;

[0050] S3-When the first temperature detector, the second temperature detector and the third temperatu...

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Abstract

The invention relates to a dangerous waste sludge drying system and an application method thereof. The dangerous waste sludge drying system comprises a drying cylinder which is horizontally arranged,wherein one end of the drying cylinder is connected with a combustion chamber by virtue of a feeding device, the other end is connected with a distributor, the feeding device is provided with a material inlet, the distributor is provided with a first material outlet and a second material outlet, the first material outlet is connected with a pulse dust collector by virtue of a conveying pipe, the pulse dust collector is also connected with a draught fan, and an air inlet of the draught fan is connected with the pulse dust collector; the second material outlet is arranged downwardly, and a discharging belt is arranged below the second material outlet; and the dangerous waste sludge drying system also comprises a sludge tank, a feeding belt is arranged between the sludge tank and the materialinlet, and the feeding belt and the discharging belt are conveyor belts. (1) By adopting the electroplating sludge drying system provided by the invention, electroplating sludge can be dried into sludge powder with the water content being kept at 29 to 32 percent, and the sludge powder has no sludge powdder and is uniform in particle ; and (2) after the treatment of the pulse dust collector, thecontent of gas component toxic particles discharged from the system is greatly reduced, and the damage to the environment can be avoided.

Description

technical field [0001] The invention relates to the technical field of harmless treatment of hazardous waste sludge, in particular to a hazardous waste sludge drying system and a use method thereof. Background technique [0002] The main source of hazardous waste sludge is the "final state" of wastewater treatment in the electroplating industry, which contains a large amount of copper, nickel, chromium, iron, zinc and other precious metals. [0003] Hazardous waste sludge mainly comes from the solid waste produced by liquid-phase chemical treatment of various electroplating waste liquids and electrolytic bath liquids in industrial electroplating plants. Due to the different production processes and treatment processes of various electroplating manufacturers, the chemical composition of electroplating sludge Quite complex, mainly containing chromium, iron, nickel, copper, zinc and other heavy metal compounds and soluble salts. [0004] Solid waste treatment companies can ext...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/13
CPCC02F11/12
Inventor 谢乐武吴永明王健柯生育柯有强刘金海
Owner YANGXIN PENGFU MINING CO LTD