CN204411852U - A kind of backwashing pipeline filter - Google Patents

A kind of backwashing pipeline filter Download PDF

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Publication number
CN204411852U
CN204411852U CN201520065537.6U CN201520065537U CN204411852U CN 204411852 U CN204411852 U CN 204411852U CN 201520065537 U CN201520065537 U CN 201520065537U CN 204411852 U CN204411852 U CN 204411852U
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China
Prior art keywords
filter
staving
screen cloth
pipe
utility
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CN201520065537.6U
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Chinese (zh)
Inventor
骆宏生
黄荣海
王树斌
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ANHUI JINXING TITANIUM DIOXIDE (GROUP) Co Ltd
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ANHUI JINXING TITANIUM DIOXIDE (GROUP) Co Ltd
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Abstract

The utility model discloses a kind of backwashing pipeline filter, belong to piping filter technical field.The middle part of the utility model middle filtrator staving is horizontally installed with screen cloth, and filter staving is divided into upper and lower two parts by this screen cloth; Its charging aperture is positioned at the sidewall bottom of filter staving, and its discharging opening is positioned at the top of filter staving, and its sewage draining exit is positioned at the bottom of filter staving, and this sewage draining exit is connected with blow-off pipe; Above screen cloth, be provided with one group of recoil water pipe, the external pipe be connected with this recoil water pipe is provided with a valve; A Pressure gauge is also provided with at the top of filter staving.The utility model compared with prior art, effectively can filter out the large granular impurity in the neutral waste water obtained after the acid waste water produced in sulfate process titanium dioxide production process carries out neutralization reaction, ensure that the quality of the neutral waste water entering filter press, effectively can prevent the clogging of filter press, substantially prolongs the service life of equipment.

Description

A kind of backwashing pipeline filter
Technical field
The utility model belongs to piping filter technical field, specifically a kind of backwashing pipeline filter.
Background technology
Can produce a large amount of acid waste water in sulfate process titanium dioxide production process, these acid waste waters can not directly discharge, and in order to can qualified discharge, have to pass through neutralisation treatment.At present, the acid waste water produced in general employing carbide slag and in production process of titanium pigment, obtained after reaching neutrality with material pH value and must carry out processed through filter press, thus titanium gypsum and neutral water that generation water content is less than 40%, but because carbide slag is after ball mill, the plastic sheeting that also there is the higher particle of a large amount of hardness in material out and be mingled with in transit, and produce the foreign material produced in way, make often feed pipe to occur in the routine use process of filter press, the phenomenon of grid and filter cloth blocking, the direct service efficiency affecting filter press, add the labour intensity of workman, parts are damaged, cause production discontinuous, equipment operating cost is high.Therefore, in order to prevent use filter press in and material carries out processed time there is the phenomenon of blocking, in and before material enters filter press, need use filter by and various solid sundries in material carry out filtration treatment.
Piping filter is the equipment of the larger solid impurity in a kind of conventional removing fluid, and through patent retrieval, the patent application about piping filter is existing relevant open.
Chinese Patent Application No.: 201210105967.7, the applying date: on April 11st, 2012, invention and created name is: a kind of piping filter, this application case is openly known clearly a kind of piping filter, comprises main body, filter screen, backwash tube, the first valve, the second valve, the 3rd valve and the 4th valve; Main body is provided with water inlet, delivery port and discharge outlet; Body interior is divided into two parts by filter screen, and water inlet and discharge outlet are positioned at the side of filter screen, and delivery port is positioned at the opposite side of filter screen; On the pipeline that the water inlet that first valve is arranged on main body is communicated with; On the pipeline that the delivery port that second valve is arranged on main body is communicated with; On the pipeline that the discharge outlet that 3rd valve is arranged on main body is communicated with; One end of backwash tube is communicated with the inlet pipeline of the first valve, and the other end is communicated with the inlet pipeline of the second valve; 4th valve is arranged on backwash tube.In this application case, piping filter is set directly on the pipeline of recirculating cooling water system, by the control to valve, automatically can remove the ducted foreign material of recirculating cooling water system to a certain extent, not need separately to establish water filter, eliminate the investment of long-distance pipe.But in this application case, when needs carry out backwash, the inlet pipeline that backwashing water flows through the inlet pipeline of the first valve, backwash tube and the second valve successively finally flows to filter interior by the water outlet of filter, backwash is carried out to filter screen, on the one hand, its backwashing water still derives from current to be filtered, and the impurity in current is easily blocked at the opposite side of filter screen, affects the normal use of equipment; On the other hand, its filter screen is vertically arranged on inner barrel, and the backwash current coming from backwash tube are less to the flushing ability of impurity on filter screen, can not impurity effectively on flushing filtering net, and the impurity being blocked in filter screen top can not be rinsed out, greatly reduce its filter effect.
Utility model content
1. the utility model technical problem that will solve
The purpose of this utility model is to overcome the acid waste water produced in sulfuric acid method titanium pigment production process and delivers to after neutralisation treatment when plate and frame filter press carries out processed and easily block, thus affect the service efficiency of filter press, increase the labour intensity of workman, cause production discontinuous, the deficiency that equipment operating cost is high, provides a kind of backwashing pipeline filter.Adopt the backwashing pipeline filter in this utility model, the impurity such as the particle do not ground remained in can effectively removing and in material and plastic sheeting, filter effect is comparatively strong, substantially increases operating efficiency.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
A kind of backwashing pipeline filter of the present utility model, comprise filter staving, screen cloth, charging aperture, discharging opening, sewage draining exit, recoil water pipe and Pressure gauge, be horizontally installed with screen cloth at the middle part of described filter staving, described filter staving is divided into upper and lower two parts by this screen cloth; Described charging aperture is positioned at the sidewall bottom of filter staving, and this charging aperture is connected with feed pipe; Described discharging opening is positioned at the top of filter staving, and this discharging opening is connected with discharge nozzle; Described sewage draining exit is positioned at the bottom of filter staving, and this sewage draining exit is connected with blow-off pipe; Above described screen cloth, be provided with one group of recoil water pipe, the external pipe be connected with this recoil water pipe is provided with a valve; A Pressure gauge is also provided with at the top of filter staving.
Further improve as of the present utility model, described screen cloth is at least one deck, and the mesh on this screen cloth is evenly arranged, and the diameter of mesh is not more than 6mm.
Further improve as of the present utility model, the spacing between described recoil water pipe is equal.
Further improve as of the present utility model, the blow-off pipe be connected with described sewage draining exit is connected with a pump.
Further improve as of the present utility model, be also provided with people's pore-throat at the top of described filter staving, this people's pore-throat is sealed by blind plate.
3. beneficial effect
The technical scheme adopting the utility model to provide, compared with prior art, has following beneficial effect:
(1) a kind of backwashing pipeline filter of the present utility model, screen cloth is horizontally installed with at the middle part of its filter staving, filter staving is divided into by this screen cloth, lower two parts, above-mentioned screen cloth is at least one deck, mesh on this screen cloth is evenly arranged, and the diameter of mesh is not more than 6mm, when in and material enter filter staving by charging aperture time, diameter is greater than the impurity such as the carbide slag of 6mm and is just blocked by screen cloth, thus the large granular impurity that diameter can be prevented to be greater than 6mm enters vertical type blotter press by discharging opening, filter press is caused to block, thus affect the service efficiency of filter press, one group of recoil water pipe is also provided with above above-mentioned screen cloth, the external pipe be connected with this recoil water pipe is provided with a valve, blocked by impurity such as above-mentioned carbide slags when the mesh of screen cloth and in affecting and the filtration of material time, by opening the by-pass valve control of recoil water pipe, just the impurity such as carbide slag can be swept away, thus achieve the automatic cleaning to screen cloth, without the need to tearing the manhole above filter open, prevent the inconvenience that manual cleaning brings, and substantially increase operating efficiency, because above-mentioned screening level is arranged, the current flowed out by backwash tube rinse from top to bottom, the impulsive force of backwashing water to impurity is larger, and above-mentioned impurity originally just has the trend dropped downwards under the effect of self gravitation, thus above-mentioned impurity is more easily rinsed, therefore greatly strengthen the developing result of backwashing water to impurity on screen cloth, can effectively prevent the mesh on screen cloth to be plugged, with the filtration of material in impact, simultaneously, also Pressure gauge is provided with at the top of filter staving, the mesh of the above-mentioned screen cloth of automatic decision whether can there occurs clogging by this manometric numerical value change, and then determine that the by-pass valve control when opening backwash tube carries out backwash operation to screen cloth.
(2) a kind of backwashing pipeline filter of the present utility model, sewage draining exit is provided with in the bottom of filter staving, this sewage draining exit is connected with blow-off pipe, when the mesh blockage phenomenon of screen cloth, by opening the by-pass valve control of backwash tube, the impurity of blocking screen net meshe is just rinsed under the effect of backwashing water, and discharged via blow-off pipe by sewage draining exit, its blow-off pipe is also connected with a pump, by opening the gauge tap of this pump, because pump has stronger resorption to above-mentioned impurity, thus make above-mentioned impurity by discharge filter better.
(3) a kind of backwashing pipeline filter of the present utility model, reasonable in design, principle is simple, is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of backwashing pipeline filter in the utility model.
Label declaration in schematic diagram:
1, filter staving; 2, screen cloth; 3, charging aperture; 4, discharging opening; 5, sewage draining exit; 6, recoil water pipe; 7, Pressure gauge.
Detailed description of the invention
For understanding content of the present utility model further, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
As shown in Figure 1, a kind of backwashing pipeline filter of the present embodiment, comprise filter staving 1, screen cloth 2, charging aperture 3, discharging opening 4, sewage draining exit 5, recoil water pipe 6 and Pressure gauge 7, the middle part of the present embodiment middle filtrator staving 1 is horizontally installed with screen cloth 2, filter staving 1 is divided into upper and lower two parts by this screen cloth 2, described screen cloth 2 is at least one deck, and the mesh on this screen cloth 2 is evenly arranged, and the diameter of mesh 2 is not more than 6mm; Charging aperture 3 is positioned at the sidewall bottom of filter staving 1, and this charging aperture 3 is connected with feed pipe, and this feed pipe is connected with the neutralization reactor of the acid waste water produced in production process of titanium pigment; Discharging opening 4 is positioned at the top of filter staving, and this discharging opening 4 is connected with discharge nozzle, and discharge nozzle is connected with the storage tank of vertical type blotter press charging pump; Sewage draining exit 5 is positioned at the bottom of filter staving 1, and this sewage draining exit 5 is connected with blow-off pipe, and blow-off pipe is connected with bodyboard filter press via a pump; One group of recoil water pipe 6 is provided with above above-mentioned screen cloth 2, the external pipe be connected with this recoil water pipe 6 is provided with a valve, spacing between above-mentioned recoil water pipe 6 is equal, its quantity determines primarily of the size of screen cloth 2, and under ensureing that the regional of screen cloth 2 can both be backwashed the prerequisite of water flushing, recoil water pipe 6 can adopt the symmetric arrays such as annular or rectangle.A Pressure gauge 7 and people's pore-throat is provided with at the top of filter staving 1, the mesh of automatic decision screen cloth 2 whether clogging can be there occurs by the numerical value change of this Pressure gauge 7, and then determine that the by-pass valve control when opening backwash tube 6 carries out backwash operation to screen cloth 2, above-mentioned people's pore-throat is sealed by blind plate.The qualified neutral material that the acid waste water produced in production process of titanium pigment obtains carry out neutralization reaction in neutralization reactor after is entered the inside of filter staving 1 by charging aperture 3 through feed pipe, under certain pressure effect, in and impurity that in material, diameter is greater than 6mm blocked by the mesh that filter screen cloth 2 is evenly arranged, and to remain in the filter inner chamber of screen cloth 2 bottom.In after filtration and material at 3kg/cm 2under pressure, be transported in three storage tanks of vertical type blotter press charging pump through the discharge nozzle that diameter is DN200mm by the discharging opening 4 at filter staving 1 top, then the outlet below storage tank is delivered into 6 vertical type blotter press by high-pressure pump.
In the present embodiment, feed pipe, discharge nozzle and blow-off pipe are respectively provided with a valve, the by-pass valve control of the valve on this feed pipe, discharge nozzle and blow-off pipe and backwash tube 6 and Pressure gauge 7 are connected on same controller, this controller can control the open and close of each valve according to the pressure change of Pressure gauge 7, thus the timely switching achieved between filtration and backwash, reduce the labour intensity of workman, and the continuous of production can be guaranteed.In running, on the Pressure gauge 7 at filter staving 1 top, show pressure lower than 1.5kg/cm 2time, the corrective doses flowed in vertical type blotter press charging pump storage tank tails off, just illustrate that the screen cloth 2 in the middle of filter is stifled, affect feed pressure and flow, now, automatically can be closed the valve on feed pipe and discharge nozzle by the control of controller, and open the valve on backwash tube 6 and blow-off pipe, operating personnel carry out manual cleaning without the need to the manhole torn open above filter, and pressure is 4.5kg/cm 2clear water namely directly wash away screen cloth 2 top by the steel pipe of one group of DN50, the impurity punching being adsorbed on screen cloth 2 reverse side is dropped in the filter inner chamber of screen cloth 2 bottom, thus the automatic cleaning achieved screen cloth 2, prevent the inconvenience that manual cleaning brings, and substantially increase operating efficiency.Because screen cloth 2 is horizontally disposed in the present embodiment, the current flowed out by backwash tube 6 rinse from top to bottom, the impulsive force of backwashing water to screen cloth 2 is larger, and impurity originally just has the trend dropped downwards under the effect of self gravitation, thus above-mentioned impurity is more easily rinsed, therefore greatly strengthen the developing result of backwashing water to impurity on screen cloth, can effectively prevent the mesh on screen cloth to be plugged, with the filtration of material in impact.Now, a large amount of large granular impurities is just directly siphoned away by the pump be connected with blow-off pipe through blow-off pipe, because pump is comparatively large to the resorption of above-mentioned impurity, thus above-mentioned impurity discharge filter enter bodyboard filter press and squeeze into finished product better can be made, reach dredging effect.
By using a kind of backwashing pipeline filter in the present embodiment, simple to operate, time saving and energy saving, effectively can filter out the large granular impurity in the neutral waste water obtained after the acid waste water produced in sulfate process titanium dioxide production process carries out neutralization reaction, filter effect is remarkable, and it carries out Automatic clearance by Stress control to screen cloth 2, decrease the trouble of labor cleaning, ensure that the quality of the neutral waste water entering filter press, effectively can prevent the clogging of filter press, substantially prolongs the service life of equipment, bring win-win to maintenance and operation, achieve expected effect.
Schematically above be described the utility model and embodiment thereof, this description does not have restricted, and also just one of the embodiment of the present utility model shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the utility model and creating aim, design the frame mode similar to this technical scheme and embodiment without creationary, protection domain of the present utility model all should be belonged to.

Claims (5)

1. a backwashing pipeline filter, comprise filter staving (1), screen cloth (2), charging aperture (3) and discharging opening (4), it is characterized in that: also comprise sewage draining exit (5), recoil water pipe (6) and Pressure gauge (7), be horizontally installed with screen cloth (2) at the middle part of described filter staving (1), described filter staving (1) is divided into upper and lower two parts by this screen cloth (2); Described charging aperture (3) is positioned at the sidewall bottom of filter staving (1), and this charging aperture (3) is connected with feed pipe; Described discharging opening (4) is positioned at the top of filter staving (1), and this discharging opening (4) is connected with discharge nozzle; Described sewage draining exit (5) is positioned at the bottom of filter staving (1), and this sewage draining exit (5) is connected with blow-off pipe; Be provided with one group of recoil water pipe (6) in the top of described screen cloth (2), the external pipe be connected with this recoil water pipe (6) is provided with a valve; A Pressure gauge (7) is provided with at the top of described filter staving (1).
2. a kind of backwashing pipeline filter according to claim 1, is characterized in that: described screen cloth (2) is at least one deck, and the mesh on this screen cloth (2) is evenly arranged, and the diameter of mesh is not more than 6mm.
3. a kind of backwashing pipeline filter according to claim 1 and 2, is characterized in that: the spacing between described recoil water pipe (6) is equal.
4. a kind of backwashing pipeline filter according to claim 3, is characterized in that: the blow-off pipe be connected with described sewage draining exit (5) is connected with a pump.
5. a kind of backwashing pipeline filter according to claim 4, is characterized in that: be also provided with people's pore-throat at the top of described filter staving (1), this people's pore-throat is sealed by blind plate.
CN201520065537.6U 2015-01-29 2015-01-29 A kind of backwashing pipeline filter Active CN204411852U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520065537.6U CN204411852U (en) 2015-01-29 2015-01-29 A kind of backwashing pipeline filter

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106925024A (en) * 2017-04-29 2017-07-07 贵州大学 A kind of automatically cleaning shale gas return sewage filtering unit
CN107185804A (en) * 2017-05-24 2017-09-22 青海万加环保新材料有限公司 One kind is wet sieving to use vibratory sieve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106925024A (en) * 2017-04-29 2017-07-07 贵州大学 A kind of automatically cleaning shale gas return sewage filtering unit
CN107185804A (en) * 2017-05-24 2017-09-22 青海万加环保新材料有限公司 One kind is wet sieving to use vibratory sieve

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