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System for realizing zero emission of wastewater and waste residues of pre-mixed concrete industry

A technology for ready-mixed concrete and industrial wastewater, applied in mixing plants, clay preparation devices, mixing operation control, etc., can solve problems such as secondary pollution, and achieve the effects of good performance, saving time and energy consumption, and high degree of automation

Inactive Publication Date: 2019-01-18
淮北砼友乐环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional treatment process is to set up 4-5 levels of sedimentation tanks. After sedimentation, the waste residues are removed and piled up, and the water is controlled. Secondary transfers are more likely to cause secondary pollution when they leave the factory.

Method used

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  • System for realizing zero emission of wastewater and waste residues of pre-mixed concrete industry
  • System for realizing zero emission of wastewater and waste residues of pre-mixed concrete industry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] according to Figure 1-2 The shown system for realizing zero discharge of waste water and slag in the ready-mixed concrete industry includes a scrubbing mixer truck 1, the input end of the scrubbing mixer truck 1 is provided with a clear water pool 2 and the output end is provided with a sand and stone separator 3, and the sand and gravel The output end of the separator 3 is provided with No. 1 first-level slurry tank 4 and No. 2 first-level slurry tank 33, and the output end of the No. 1 first-level slurry tank 4 is provided with a fine sand separator 5 and a second-level slurry tank connected successively by pipelines. Tank 6, slurry storage tank 7 and mixing building 8, the input end of the fine sand separator 5 is connected to the clear water tank 2, and the input end of the secondary slurry tank 6 is connected to the scrubbing mixer truck 1 and the fine sand separator through a three-way pipeline 5 connection, the bottom of the slurry storage tank 7 is connected to...

Embodiment 2

[0043] The present invention also provides a system for realizing zero discharge of waste water and residue in the ready-mixed concrete industry. The specific operation steps are as follows:

[0044] Step 1: When the scrubbing mixer truck 1 enters the parking space 9, the infrared receiver 11 on the control box 10 can receive the infrared signal emitted by the infrared transmitter 28 on the scrubbing mixer truck 1, and then send the control signal to the PLC controller 29 , the PLC controller 29 controls the operation of the entire system;

[0045] Step 2: When cleaning, the No. 1 water pump 14, No. 1 valve 12, and No. 2 valve 13 are turned on, and clean water enters the scrubbing mixer 1 to clean the concrete attached to the inner wall. The cleaning time is 90 seconds, and the cleaned mixed liquid flows into the sand The stone separator 3 and the sand separator 3 work for 120 seconds, and compared with the scrubbing mixer 1, the sand separator 3 is delayed for 30 seconds to s...

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Abstract

The invention discloses a system for realizing zero emission of wastewater and waste residues of a pre-mixed concrete industry. The system comprises a scrubbing stirring vehicle, wherein an input endof the scrubbing stirring vehicle is provided with a clean water tank and an output end of the scrubbing stirring vehicle is provided with a sand-stone separation machine; the output end of the sand-stone separation machine is provided with a NO. 1 first-grade slurry tank and a NO. 2 first-grade slurry tank; the output end of the NO. 1 first-grade slurry tank is provided with a fine sand separation machine, a second-grade slurry tank, a slurry storage tank and a mixing plant, which are connected in sequence through a pipeline; the input end of the fine sand separation machine is connected witha clean water tank; the input end of the second-grade slurry tank is connected with the scrubbing stirring vehicle and the fine sand separation machine through a three-way pipeline. According to thesystem disclosed by the invention, washing water of the scrubbing stirring vehicle is directly introduced into the system and concrete slurry is treated through the sand-stone separation machine and the fine sand separation machine respectively, and coarse sand, stones and fine sand are filtered; the coarse sand, the stones and the fine sand are recycled and obtained slurry is recycled into the NO. 1 first-grade slurry tank and the NO. 2 first-grade slurry tank for storing and then is conveyed to the slurry storage tank; finally, the slurry is recycled into the mixing plant for recycling.

Description

technical field [0001] The invention relates to the technical field of zero discharge of waste water and slag in the ready-mixed concrete industry, in particular to a system for realizing zero discharge of waste water and slag in the ready-mixed concrete industry. Background technique [0002] With the continuous strengthening of environmental protection in the dust-related industry, the waste residue and waste water in the ready-mixed concrete industry have reached the point where they cannot be cured. The traditional treatment process is to set up 4-5 levels of sedimentation tanks. After sedimentation, the waste residues are removed and piled up, and the water is controlled. Secondary transfers are more likely to cause secondary pollution when they leave the factory. [0003] Therefore, it is necessary to invent a system for realizing the zero discharge of waste water and residue in the ready-mixed concrete industry to solve the above problems. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): B28C9/02
CPCB28C9/02
Inventor 梁作启
Owner 淮北砼友乐环保科技有限公司
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