Zero-emission gravel production wastewater treatment system and process

A technology for the production of waste water and treatment systems, which is applied in ceramic waste water treatment, water/sewage treatment, multi-stage water/sewage treatment, etc. It can solve the problems of not being able to keep up with the production progress, the sewage tank cannot accommodate muddy water, and stop production, etc., to achieve Save water treatment costs, prevent soil erosion, and reduce water intake costs

Active Publication Date: 2021-06-15
SINOHYDRO BUREAU 9
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the treatment is not timely, it will cause the sewage tank to be unable to accommodate the excess mud water, unable to keep up with the production progress, resulting in shutdown

Method used

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  • Zero-emission gravel production wastewater treatment system and process

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Embodiment Construction

[0024] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0025] Such as figure 1 Shown is the structural representation of the present invention:

[0026] The present invention provides a waste water treatment system for zero-discharge sandstone production, including a sedimentation tank 1, a sand washing machine 4, a sand bin 6, a sewage well 7, a vertical flow clarifier 9, a high-efficiency and rapid separator 10, a clear water tank 11, a sewage Mud tank 12, sludge drying equipment 14, the sedimentation tank 1 is provided with a sand scraper 2, and one end of the bottom of the sedimentation tank 1 is provided with a sand pump 3, and the outlet of the sand pump 3 is connected to a sand washing machine 4 for sand washing The outlet of the machine 4 is provided with a dewatering screen 5, and the dewatering screen 5 and the sand bin 6 are connected by a conveyor belt; the middle part of ...

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Abstract

The invention provides a zero-emission gravel production wastewater treatment system and a process applied to the system. The system comprises a sedimentation tank, the sedimentation tank is provided with a sand scraper and a sand pump, an outlet of the sand pump is connected with a sand washer, an outlet of the sand washer is provided with a dewatering screen, and the dewatering screen is connected with a sand silo; the middle of the sedimentation tank communicates with a sewage well, the bottom of the sewage well pumps sewage to a vertical flow clarifier through a first slurry pump, the upper portion of the vertical flow clarifier is connected with a high-efficiency rapid separator, the upper portion of the high-efficiency rapid separator is connected with a clean water tank, and the lower portions of the vertical flow clarifier and the high-efficiency rapid separator are respectively connected with a sludge tank; and the bottom of the sludge tank pumps the sludge to sludge drying equipment through a second slurry pump. Fine sand recycling is achieved, and the gravel production cost is saved; sewage is subjected to multi-stage treatment, so that the water treatment cost is saved; and clear water recovery and sewage zero discharge are realized, the water taking cost is reduced, and the environment is protected.

Description

technical field [0001] The invention relates to the technical field of sandstone aggregate production wastewater treatment, in particular to a zero-discharge sandstone production wastewater treatment system and process. Background technique [0002] In construction engineering, when the stone powder content of sand and gravel aggregate is too high, the water consumption will increase, and there will be free in the concrete or at the interface, resulting in a decrease in the strength of the concrete. Therefore, construction projects have certain restrictions on the maximum stone powder content of sand and gravel aggregates. During the sand and gravel production process, the stone powder content of the crushed raw sand is relatively high, far exceeding the maximum stone powder content requirement of the sand and gravel aggregate. In addition, the surface of gravel and bean stone is coated with a large amount of powder, which will easily lead to free interfaces and reduce the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F1/52C02F103/12
CPCC02F1/5281C02F1/00C02F11/122C02F2001/007C02F2103/12
Inventor 王军严章国陈中华夏军张昌晶康未嘉覃信海杨华张延
Owner SINOHYDRO BUREAU 9
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