Chemical sewage filtering method

A chemical sewage and filtration method technology, applied in the direction of chemical instruments and methods, filtration separation, separation methods, etc., can solve the problems of equipment not working normally, sewage pipe blockage, difficult to clean, etc., to improve the filtration performance of the filter element and ensure normal use , the effect of simple structure

Active Publication Date: 2018-12-28
NANJING RONGZHONG ENVIRONMENTAL ENG RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Chemical wastewater refers to the wastewater produced in the process of producing products in chemical factories. After biochemical treatment, it can generally meet the discharge standard. Due to the shortage of water resources, the water that meets the discharge standard needs to be further treated to meet industrial water replenishment. The required recycling, because the impurities in the water are mainly suspended particles and fine hair fibers, the impurities are removed by using the principle of mechanical filtration and micropor

Method used

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no. 1 approach

[0022] The first embodiment: see Figure 1-3 As shown, the present invention provides a chemical sewage filtering device, comprising: a support mechanism, the support mechanism includes a sewage filter barrel 1 and a sewage inlet pipe 3, the upper end of the sewage filter barrel 1 is provided with a bucket cover 5, the The lower end of the sewage filter bucket 1 is provided with a detachable sewage pipe 10 and three sets of brackets 2, and a casing 11 is movably installed on the detachable sewage pipe 10, and the position of the detachable sewage pipe 10 close to the casing 11 is provided with a screw thread Circle 12, and a valve 13 is movably installed near the lower end of the detachable sewage pipe 10, and a backwash water pipe 7 is fixedly installed near the upper end of the sewage filter bucket 1, and the sewage filter bucket 1 is located below the backwash water pipe 7 A clean water discharge pipe 9 is arranged at the position of the clean water discharge pipe 9, and a ...

no. 2 approach

[0026]The second embodiment: a chemical sewage filter device, including: a support mechanism, the support mechanism includes a sewage filter barrel 1 and a sewage inlet pipe 3, the upper end of the sewage filter barrel 1 is provided with a barrel cover 5, and the sewage filter The lower end of the barrel 1 is provided with a detachable sewage pipe 10 and three sets of brackets 2, and a sleeve 11 is movably installed on the detachable sewage pipe 10, and a threaded ring 12 is provided at a position close to the sleeve 11 of the detachable sewage pipe 10. , and a valve 13 is movably installed near the lower end of the detachable sewage pipe 10, and a backwash water pipe 7 is fixedly installed near the upper end of the sewage filter bucket 1, and the sewage filter bucket 1 is located below the backwash water pipe 7 A clean water discharge pipe 9 is arranged at the clean water discharge pipe 9, and a No. 2 flow meter 8 is arranged on the clean water discharge pipe 9; the sewage inl...

no. 3 approach

[0035] The third embodiment: a chemical sewage filtration method, in which a rotatable filter element 14 is fixedly suspended in the sewage filter bucket 1, and the water inlet speed and water outlet speed on the sewage filter bucket 1 are monitored and set, so as to control their volume In this process, the filter core 14 is driven by the motor to alternate between two working modes of variable acceleration and smooth rotation, and the length of the variable acceleration rotation cycle is much shorter than the length of the smooth rotation cycle. Sewage filter bucket 1 The bottom of the barrel body adopts two built-in filter cotton and the detachable trapezoidal inner bottom 16, 17 which is set opposite to form a sewage outlet, and at the same time complete the secondary absorption and filtration of sewage;

[0036] Finally, carry out the backwashing of the filter element, turn off the motor, stop the rotation of the filter element 14, stop injecting sewage, and only keep the ...

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Abstract

The invention discloses a chemical sewage filtering method. A rotatable filter element is fixedly suspended in a barrel body of a sewage filter barrel, the water inlet speed and the water outlet speedof the sewage filter barrel are monitored and set, so that the volume flow of inlet water and outlet water can be controlled, and the best combination values can be reached. In the process, a motor drives the filter element to work in turns in two working modes including vary acceleration and stable rotation, the rotation cycle length of varying rotation is far smaller than that of stable rotation, two pieces of inner filter cotton are adopted at the bottom of the barrel body of the sewage filter barrel, detachable trapezoid inner bottoms arranged oppositely form a drain port, and secondary absorption and filtration of sewage are finished. The method has the benefits as follows: the chemical sewage filtering device adopts a support mechanism and a filter mechanism, cleaning of a drain pipe is facilitated, filtered dirt can be prevented from blocking the drain pipe, purified water can be prevented from being polluted again, thoroughness of sewage tretament can be guaranteed, and the device is simple in structure and convenient to use.

Description

technical field [0001] The invention relates to the field of sewage filtration, in particular to a chemical sewage filtration device and a filtration method. Background technique [0002] Chemical wastewater refers to the wastewater produced in the process of producing products in chemical factories. After biochemical treatment, it can generally meet the discharge standard. Due to the shortage of water resources, the water that meets the discharge standard needs to be further treated to meet industrial water replenishment. The required recycling, because the impurities in the water are mainly suspended particles and fine hair fibers, the impurities are removed by using the principle of mechanical filtration and microporous filtration technology; the existing chemical sewage filtration devices have certain disadvantages in the process of use, and the filtration produced Dirt is discharged through the sewage pipe. Long-term use can easily lead to blockage of the sewage pipe an...

Claims

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Application Information

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IPC IPC(8): B01D36/02B01D35/16
CPCB01D35/16B01D36/02
Inventor 高青
Owner NANJING RONGZHONG ENVIRONMENTAL ENG RES INST CO LTD
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