CN212954522U

CN212954522U - Alkali filtration system

Info

Publication number: CN212954522U
Application number: CN202020374930.4U
Authority: CN
Inventors: 李忠耀; 孔宝娣
Original assignee: Wuxi Rongrui Environmental Protection Technology Co ltd
Current assignee: Wuxi Rongrui Environmental Protection Technology Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2021-04-13
Anticipated expiration: 2030-03-23

Abstract

The utility model relates to an alkali filtration system, specific can be with equipment and process flow that alkali filtration was retrieved that says so belongs to sewage filtration technical field. It comprises a filter, a pipeline, a sedimentation tank, a vapor flotation machine, a storage tank and the like. Mercerizing waste alkali flows into a primary filter through a pipeline, filtered waste alkali flows into a primary sedimentation tank through a pipeline, the sedimentation tank makes impurities settle through a partition plate, the impurities are released and cleaned through a drain valve, alkali liquor and suspended matters flow into a vapor flotation machine through a pipeline, and after the suspended matters are discharged, the waste alkali passes through a more precise secondary filter again to be filtered and passes through a secondary sedimentation tank, and finally enters a storage tank to be collected. The utility model has the advantages of simple and reasonable structure, convenient to use, energy saving and consumption reduction has improved the alkali lye rate of utilization.

Description

Alkali filtration system

Technical Field

The utility model relates to a, especially, can filter equipment and process flow of retrieving with alkali belongs to sewage filtration technical field.

Background

Alkali is used as an important medium for printing and dyeing processing, alkali liquor is required to be used for singeing, boiling-off, desizing, oxygen bleaching, mercerizing and soaping in the production process of the traditional cotton fabric, and the alkali liquor comprises the following components in percentage by concentration: singeing by 18-20 g/L, mercerizing by 200-250 g/L, scouring by 14-18 g/L, desizing by 11-14 g/L, soaping by 7-8 g/L, and adjusting the pH value of the oxygen bleaching alkali liquor to 10.5-11. The general spent waste alkali liquor is diluted by clear water, so that the production consumption cost is increased if the spent waste alkali liquor is directly discharged, and the high-alkalinity characteristic is difficult to biodegrade during sewage treatment; the sewage treatment load is increased, and acid substances are consumed for neutralization. Therefore, the enterprise can adopt dilatation evaporation to retrieve light alkali at present, but the energy resource consumption that relies on steam heating to cause also can be high enough, and the equipment pipe blockage ubiquitous, and the light alkali of retrieving needs personnel to detect its concentration, has wasted manpower and materials.

Disclosure of Invention

The utility model aims at overcoming the not enough of existence among the prior art, providing an alkali filtration system, the user can supply fresh alkali lye according to the alkali lye concentration and the quantity of different technology sections and carry out the ratio, also can carry out solitary recycle according to every technology section (here mainly to the great technology section of quantity such as mercerization) simultaneously.

According to the utility model provides a technical scheme, an alkali filtration system, characterized by: comprises a primary sedimentation barrel and a secondary sedimentation barrel, wherein a primary filter and a secondary filter are respectively arranged above the primary sedimentation barrel and the secondary sedimentation barrel; the first-stage filter and the second-stage filter are respectively guided into one side of a first-stage sedimentation barrel and one side of a second-stage sedimentation barrel through pipelines, partition plates are arranged in the first-stage filter barrel and the second-stage filter barrel to divide the barrel body into two areas, a gap is reserved between each partition plate and the bottom of the barrel body, and a valve is arranged at the bottom of the barrel bottom; the first-stage sedimentation barrel is connected with an air floatation machine through a pipeline, and the outlet of the air floatation machine is connected with a second-stage filter.

Further, the first-level precipitation barrel and the second-level precipitation barrel are of inverted cone structures.

Further, the outlet of the secondary sedimentation barrel is connected with a storage pool.

Compared with the prior art, the utility model has the advantages that:

(1) the design is reasonable, the structure is simple, and the manual manufacturing cost is effectively reduced;

(2) the practicability is strong, the applicability is high, the device can be used in various production machines, various production process flows are met, and therefore assembly line operation is achieved;

(3) the investment cost is low, and the operation cost is low;

(4) high efficiency of filter fineness, long service life, clean convenient.

Drawings

Fig. 1 is a schematic structural diagram of the alkali filtering system of the present invention.

Description of reference numerals: 1-inlet, 2-first-stage filter, 3-pipeline, 4-first-stage sedimentation barrel, 5-clapboard, 6-air floating machine, 7-second-stage filter, 8-second-stage sedimentation barrel and 9-storage tank.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in figure 1, the waste alkali discharged from the production process section is connected with an inlet 1 of a primary filter 2, and the alkali liquor filtered by the primary filter 2 is guided to enter a primary sedimentation barrel 4 through a pipeline 3.

One-level precipitation bucket 4 is the back taper structure, and is equipped with baffle 5 in the one-level precipitation bucket 4, and the gap is left with the staving bottom of one-level precipitation bucket 4 to baffle 5, and impurity accessible valve 10 regular discharge through the sediment after alkali lye gets into one-level precipitation bucket 4 has accomplished one-level filtration and sedimentation process this moment.

Then the alkali liquor is cleaned by the air flotation machine 6, and enters the secondary filter 7 and the secondary sedimentation barrel 8 of the same process, and the secondary sedimentation barrel 8 is also in an inverted cone structure.

The filtering precision of the secondary filter 7 is higher than that of the primary filter 2, and secondary filtering and sedimentation are further completed through a secondary sedimentation barrel 8.

Finally, the mixture enters a storage pool 9 for centralized collection. The user can recycle the alkali according to the concentration of the tracked alkali. And fresh alkali liquor can be additionally supplemented for use according to the process requirements of different alkali concentrations, so that the production cost is further improved, and the sewage treatment load is reduced.

The utility model discloses the leading-in filter is concentrated to the alkali waste who produces in the production technology process of printing and dyeing, and the alkali lye after getting rid of impurity leads to the sedimentation tank again, and the air supporting machine, and the user can carry out the ratio according to the alkali lye concentration and the quantity replenishment fresh alkali lye of different technology sections through filtering repeatedly, deposit the postconcentration storage again. Meanwhile, the method can be independently recycled according to each process section (mainly aiming at the process section with larger dosage such as mercerization). The utility model discloses to reduce the impurity content in the alkali lye by a wide margin, make the alkali lye obtain abundant recycle value, especially guaranteed good technological effect, improve the dye uptake rate and avoided colour difference, the impaired condition of elasticity to appear, reduced the quantity of commodity alkali and dyestuff, not only reduced manufacturing cost, still avoided the wasting of resources.

Claims

1. An alkali filtration system, characterized by: comprises a primary sedimentation barrel (4) and a secondary sedimentation barrel (8), wherein a primary filter (2) and a secondary filter (7) are respectively arranged above the primary sedimentation barrel and the secondary sedimentation barrel; the primary filter (2) and the secondary filter (7) are respectively guided to enter one side of a primary sedimentation barrel (4) and one side of a secondary sedimentation barrel (8) through a pipeline (3), partition plates (5) are arranged in the primary sedimentation barrel (4) and the secondary sedimentation barrel (8) to divide the barrel body into two areas, a gap is reserved between the partition plates (5) and the bottom of the barrel body, and a valve (10) is arranged at the bottom of the barrel body; the first-stage sedimentation barrel (4) is connected with an air floatation machine (6) through a pipeline (3), and the outlet of the air floatation machine (6) is connected with a secondary filter (7).

2. The alkaline filtration system of claim 1, wherein: the primary sedimentation barrel (4) and the secondary sedimentation barrel (8) are of inverted cone structures.

3. The alkaline filtration system of claim 1, wherein: the outlet of the secondary sedimentation barrel (8) is connected with a storage pool (9).