CN211635513U

CN211635513U - Phosphoric acid phosphorus wastewater filter equipment of wet process

Info

Publication number: CN211635513U
Application number: CN201922159259.1U
Authority: CN
Inventors: 邓光政; 刘明高; 黄传国; 陈勇翔; 彭涛; 黄翔翔
Original assignee: Yidu Xingfa Chemical Co ltd
Current assignee: Yidu Xingfa Chemical Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-10-09
Anticipated expiration: 2029-12-05

Abstract

The utility model discloses a phosphoric acid phosphorus-containing wastewater filter device by wet process, which comprises a water inlet pipe connected with the phosphorus-containing wastewater, wherein the water inlet pipe is provided with a water inlet regulating valve and a steam jacket, the water inlet pipe is connected with a separator, a filter element is arranged in the separator, the filter element can be disassembled, the filter element is arranged on a water collecting tank, and the water collecting tank is connected with a filter cloth washing system through a drain pipe; the utility model discloses can avoid the phosphorus-containing waste water in the large granule solid to get into filter flushing disc water system, utilize the whirl effect to realize filtering simultaneously and carry out the friction of synchronous cycle and wash the filtration pore, prolong cylindrical filter core life cycle, can realize simultaneously that the sediment is arranged to the automatic timing, improve filter cloth regeneration effect, the extension is washed water system operation cycle.

Description

Phosphoric acid phosphorus wastewater filter equipment of wet process

Technical Field

The utility model relates to a phosphoric acid production field of wet process specifically indicates a phosphoric acid wastewater filter equipment of wet process.

Background

In the wet-process phosphoric acid filtration production process, because the washing water used for filter cloth regeneration is derived from phosphorus-containing wastewater generated in the phosphoric acid production process, the solid content is about 1% -2%, and the washing water is accompanied by partial fluosilicate and other impurities, the phenomenon of nozzle blockage is often generated, so that the system is forced to stop to clean the nozzles, and the device start rate is influenced.

In the practical application of wet-process phosphoric acid filtration production, the conventional method is to install a Y-shaped filter on an outlet pipeline of a flushing disc water pump, the filter generally needs to be stopped and cleaned regularly every day in operation, the cleaning difficulty is high, and meanwhile, after filtration is added on the outlet pipeline of the flushing disc water pump, the flushing disc water pressure cannot meet the requirement of the filter cloth flushing working condition, so that the regeneration effect of the filter cloth is poor, and the phosphoric acid filtration production operation is severely restricted.

Therefore, it is necessary to design a wet-process phosphoric acid phosphorus-containing wastewater filtering device to solve the above problems.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned not enough, provide a phosphoric acid phosphorus wastewater filter equipment of wet process, can avoid the large granule solid among the phosphorus wastewater to get into filter flushing water system, avoided the phenomenon of jam shower nozzle, improve filter cloth regeneration effect, the extension washing water system operation cycle.

The utility model discloses a solve above-mentioned technical problem, the technical scheme who adopts is: the utility model provides a phosphoric acid phosphorus wastewater filter equipment of wet process, includes the inlet tube that links to each other with phosphorus wastewater, is equipped with into water governing valve and steam jacket on the inlet tube, and the inlet tube links to each other with the separator, is equipped with the filter core in the separator, the filter core can be dismantled, and on the header tank was located to the filter core, the header tank passed through the drain pipe and links to each other with filter cloth washing system.

Preferably, the separator and the filter element are both cylindrical.

Preferably, a filter element socket is arranged on the water collecting tank, and the filter element is connected with the water collecting tank through the filter element socket.

Preferably, a cover plate is arranged at the top of the separator, and a plurality of lifting lugs are arranged at the top of the filter element.

Preferably, a funnel-shaped settling area is arranged at the bottom of the separator, and a drain valve is arranged at the lowest part of the settling area.

Preferably, the outer walls of the water inlet pipe, the separator and the water outlet pipe are all provided with heat preservation cotton.

The utility model has the advantages that: the utility model discloses can avoid the phosphorus-containing waste water in the large granule solid to get into filter flushing disc water system, utilize the whirl effect to realize filtering simultaneously and carry out the friction of synchronous cycle and wash the filtration pore, prolong cylindrical filter core life cycle, can realize simultaneously that the sediment is arranged to the automatic timing, improve filter cloth regeneration effect, the extension is washed water system operation cycle.

Drawings

FIG. 1 is a schematic structural diagram of a wet-process phosphoric acid phosphorus-containing wastewater filtering device;

in the figure, a water inlet pipe 1, a water inlet regulating valve 2, a steam jacket 3, a separator 4, a cover plate 4.1, a filter element 5, a lifting lug 5.1, a water collecting tank 6, a water discharging pipe 7, a filter element bell and spigot 8, a settling zone 9 and a blow-down valve 10.

Detailed Description

The invention is described in further detail below with reference to the figures and the embodiments.

As shown in figure 1, the phosphoric acid phosphorus-containing wastewater filtering device by the wet process comprises a water inlet pipe 1 connected with phosphorus-containing wastewater, wherein a water inlet regulating valve 2 and a steam jacket 3 are arranged on the water inlet pipe 1, the water inlet pipe 1 is connected with a separator 4, a filter element 5 is arranged in the separator 4, the filter element 5 can be detached, the filter element 5 is arranged on a water collecting tank 6, and the water collecting tank 6 is connected with a filter cloth washing system through a drain pipe 7.

The temperature of the phosphorus-containing wastewater with the solid content of 1% -2% is controlled to be 60-65 ℃ by utilizing a steam jacket 3 heat tracing mode before the phosphorus-containing wastewater enters a separator 4, the phenomenon that impurities are separated out and block a filter element 5 due to overlarge temperature difference of the phosphorus-containing wastewater in the subsequent filtration and use processes is delayed, the phosphorus-containing wastewater enters the separator 4 in a tangential mode along the outer wall of the separator 4 through a water inlet pipe 1, washing water forms a rotational flow in the separator 4, large particles in the washing water are attached to the outer wall of the filter element 5, and the large particles naturally settle under the action of centrifugal force. Since the solid particle size in the washing water is larger than 50 meshes, the filter element 5 in this embodiment is a filter element with a pore size of 50-80 meshes.

Preferably, the separator 4 and the filter element 5 are both cylindrical. The arrangement is convenient for washing the filter holes on the filter element 5 by the washing water under the action of centrifugal force.

Preferably, a filter insert socket 8 is provided on the water collection tank 6, and the filter element 5 is connected to the water collection tank 6 through the filter insert socket 8. Such an arrangement facilitates removal and installation of the filter cartridge 5 from the header tank 6.

Preferably, a cover plate 4.1 is arranged on the top of the separator 4, and a plurality of lifting lugs 5.1 are arranged on the top of the filter element 5. Such an arrangement facilitates removal of the filter cartridge 5 from the separator 4 and replacement of the filter cartridge 5.

Preferably, a funnel-shaped settling zone 9 is provided at the bottom of the separator 4, and a blow-down valve 10 is provided at the lowest part of the settling zone 9. The settling zone 9 is capable of collecting precipitated impurities and periodically discharging them through a blow-down valve 10 to facilitate the cleaning of the impurities in the separator 4.

Preferably, the outer walls of the water inlet pipe 1, the separator 4 and the water outlet pipe 7 are all provided with heat preservation cotton. The heat preservation cotton can carry out the heat preservation protection to inlet tube 1, separator 4 and drain pipe 7, avoids producing the difference in temperature inside and outside equipment and the pipeline and leads to phosphorus and other impurity in the phosphorus wastewater to separate out the crystallization and appear the scale deposit phenomenon.

The working principle of the embodiment is as follows: the temperature of the phosphorus-containing wastewater with the solid content of 1% -2% is controlled to be 60 ℃ -65 ℃ by utilizing a steam jacket 3 heat tracing mode before the phosphorus-containing wastewater enters a separator 4, the phenomenon that impurities are separated out and block a filter element 5 caused by overlarge temperature difference in the subsequent filtration and use process of the phosphorus-containing wastewater is delayed, the phosphorus-containing wastewater enters the separator 4 in a tangent mode along the outer wall of the separator 4 through a water inlet pipe 1, and fine particles and partial impurities in the phosphorus-containing wastewater enter a water collecting tank 6 through the filter element 5 and are collected and then discharged to a filter cloth washing system through a water discharge pipe 7. The cyclone that utilizes phosphorus wastewater to form inside separator 4 forms the friction to wash the adnexed impurity formation on the filter element 5 outer wall filtration pore, realizes filtering and washes adnexed impurity in step on the filter element 5 simultaneously, and the impurity falls into bottom settlement zone 9 under self action of gravity after washing.

The filter element 5 can be detached and mounted from the water collecting tank 6 through the filter element faucet 8, and the filter element 5 is taken out from the separator 4 by opening the cover plate 4.1 and holding the lifting lug 5.1, so that the filter element 5 is replaced. The filter element 5 is taken out and replaced regularly according to the actual operation condition in a period of 15-20 days.

The application the utility model discloses afterwards, the filter on the dish water pump outlet pipeline can cancel, ensures to dash set water pressure stable control at 1.0-1.2 Mpa, and the guarantee filter cloth washes regeneration effect, ensures the continuous stable long period operation of filtration system. The utility model can ensure the continuous and stable operation of the phosphoric acid filter cloth flushing system for more than 14-20 days.

The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a phosphoric acid phosphorus wastewater filter equipment of wet process, includes inlet tube (1) that links to each other with phosphorus wastewater, its characterized in that: be equipped with into water governing valve (2) and steam jacket (3) on inlet tube (1), inlet tube (1) links to each other with separator (4), is equipped with filter core (5) in separator (4), filter core (5) can be dismantled, and on header tank (6) was located in filter core (5), header tank (6) passed through drain pipe (7) and links to each other with filter cloth washing system.

2. The phosphoric acid phosphorus wastewater filter of wet process according to claim 1, characterized in that: the separator (4) and the filter element (5) are both cylindrical.

3. The phosphoric acid phosphorus wastewater filter of wet process according to claim 1, characterized in that: the water collecting tank (6) is provided with a filter element socket (8), and the filter element (5) is connected with the water collecting tank (6) through the filter element socket (8).

4. The phosphoric acid phosphorus wastewater filter of wet process according to claim 3, characterized in that: the top of the separator (4) is provided with a cover plate (4.1), and the top of the filter element (5) is provided with a plurality of lifting lugs (5.1).

5. The phosphoric acid phosphorus wastewater filter of wet process according to claim 1, characterized in that: a funnel-shaped settling area (9) is arranged at the bottom of the separator (4), and a blow-down valve (10) is arranged at the lowest part of the settling area (9).

6. The phosphoric acid phosphorus wastewater filter of wet process according to claim 1, characterized in that: the outer walls of the water inlet pipe (1), the separator (4) and the water outlet pipe (7) are all provided with heat preservation cotton.