CN201420022Y - Phosphorus separation and purification equipment - Google Patents

Abstract

The utility model relates to phosphorus filtering, separation and purification equipment during yellow phosphorus production. The equipment comprises an elliptical sealing head (17), a cylinder body and a folding cone sealing head (3). The elliptical sealing head (17) and the upper end of the cylinder body are in flange sealing and bolted connection; the lower end of the cylinder body is welded with the folding cone sealing head (3); a crude phosphorus inlet tube (23) and a scouring water collecting tube (22) are arranged on the elliptical sealing head (17); a heat-insulating jacket (8) is arranged at the periphery of an outer cylinder (10) of the cylinder body; an inner cylinder (12)and a filtering cloth sleeve (20) are arranged in the cylinder body; filter holes are uniformly distributedon the filtering cloth sleeve; a piece of filter cloth (20) is arranged between the two cylinders; a crude phosphorus distribution board (21) is welded on the filtering cloth sleeve (20); the lower parts of the inner cylinder (12) and the outer cylinder (10) are welded together through a sealing ring (5), while the upper parts thereof are matched with a clamping flange ring (30); a clamping flange (30) is welded at the upper part of the inner cylinder (12); a clearance is formed between the clamping flange (30) and the outer cylinder; a phosphorus discharge tube is arranged at the lower partof the outer cylinder (10); and a slag discharge tube (1) is arranged at the lower end of the folding cone sealing head (3).

Description

Phosphorus separates equipment for purifying

Technical field

The utility model relates to the phosphorus filtering separation equipment for purifying in a kind of phosphorus production.

Background technology

In yellow phosphorus electric furnace is produced, enter dust and the fugitive constituent that the dispersity of electric furnace is very high and have very strong adsorptive power with material, in electric furnace, can enter condenser system with the phosphorus furnace gas again, the phosphorus vapor condensation is on the dust surface, will form stable phosphorus mud, be difficult to separate from phosphorus mud elemental phosphorous with simple mechanical separation method.Usually adopting following technology to carry out the element phosphor separation at present both at home and abroad purifies: 1, staticly settle technology; 2, filtering separation technology.Above-mentioned two kinds of technologies all produce the mud phosphorus of some amount, also contain 10%～30% element phosphor in the mud phosphorus, if will not reclaim or handle, then will cause the significant wastage and the environmental pollution of resource.So, also necessary supporting special mud phosphorus treatment unit, the following technology of common both at home and abroad employing further reclaims the element phosphor in the mud phosphorus.1, mud phosphorus returns the electric furnace recirculating process; 2, distil process; 3, mud phosphorus acid-making process.Because the chemical component fluctuation of mud phosphorus is very big, the method for existing various processing mud phosphorus all has shortcoming, is difficult to solve systematically the secondary pollution problem in the mud phosphorus treating processes.

Chinese patent application numbers 200520111757.4 discloses " a kind of mud phosphorus recovery system ", comprises mud phosphorus basin, force (forcing) pump, plate-and-frame filter press, phosphorus water separator.The physical property of liquefaction was utilized equipment of the present utility model when phosphorus had 44 ℃, the temperature of control mud phosphorus basin, make that phosphorus is in a liquid state in the jar,, make mud and liquid phosphorus, water sepn through the plate-and-frame filter press press filtration, liquid phosphorus and water separate in the phosphorus water separator again, separate back phosphorus and can all reclaim.Because the phosphorus burning-point is low, reclaims whole process and carry out in confined conditions.This patent equipment can only be handled the mud phosphorus of phosphorus content≤30%, and is inapplicable to the processing of thick phosphorus.

Chinese patent application numbers 200310110931.9 discloses " a kind of production method and device thereof that reclaims yellow phosphorus from mud phosphorus ", a kind of production method of yellow phosphorus and device of realizing this method of reclaiming from mud phosphorus disclosed, method may further comprise the steps: earlier bicarbonate of ammonia is added specific equipment, add mud phosphorus then, heating, temperature is controlled at 70～90 ℃; Stir 1.5 start agitator about hour, stir number of times and be controlled at 25～30 rev/mins, stirred 2 hours, stop stirring and be incubated standing separation, soaking time is 12～15 hours; Observe color from the phosphorus that baiting valve is emitted after a small amount of decomposition, be incubated to the qualified back of color and emitted by baiting valve, qualified product enters stockyard.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple and direct, equipment for purifying of phosphorus separation fast and effectively is provided.

Phosphorus described in the utility model separates equipment for purifying and is made up of elipse head (17), cylindrical shell and folding awl end socket (3) three parts, and elipse head (17) is connected with the flange sealing bolt with the cylindrical shell upper end, cylindrical shell lower end and folding awl end socket (3) welding; Elipse head (17) is provided with thick phosphorus inlet pipe (23) and washing water are taken over (22); The urceolus of cylindrical shell (10) periphery is provided with insulation jacket (8), be provided with inner core (12) and filter cloth sleeve (20) in the cylindrical shell, inner core (12) and filter cloth sleeve (20) are gone up uniform filter opening, filter cloth (9) is arranged between two, inner core (12) and filter cloth sleeve (20) and filter cloth (9) between the two link together by bolt, thick phosphorus distribution plate (21) is arranged in the filter cloth sleeve (20), thick phosphorus distribution plate (21) is welded on the filter cloth sleeve (20), inner core (12) welds together by seal mouth ring (5) with the bottom of urceolus (10), top cooperates with clamping flange ring (30), clamping flange (30) is welded on inner core (12) top, gapped between clamping flange (30) and the urceolus (10), row's phosphorus pipe (29) is arranged on the bottom of urceolus (10); The lower end of folding awl end socket (3) is provided with scum pipe (1).

The thickness of above-mentioned filter cloth is 2-4mm, and mesh is the 80-400 order; Row's phosphorus tube hub is 40-60mm from the distance of wear ring (4); Thick phosphorus distribution plate can be polylith, and the distance between plate and the plate is 500-800mm, and its bottom distance from wear ring is 300-500mm.

The utility model adopts filter cloth to filter, and device structure is reasonable, and can once filter the product that obtains the thick phosphorus purity of yellow phosphorus 〉=99%.Be not only applicable to thick phosphorus separation and purification, be applicable to that equally the separation of mud phosphorus is purified yet.

Use the utility model equipment, compare with technology, need not outer for yellow phosphoric tail gas or coal combustion thermal source with legacy equipment, operating environment is good, does not produce phosphorous waste gas, and the phosphorus-containing wastewater generation reduces more than 50%, operating safety is more guaranteed, and energy consumption and production cost are lower.Working condition is less demanding, and technology controlling and process is easy, is with a wide range of applications.

Description of drawings

Fig. 1 is that phosphorus of the present invention separates the equipment for purifying structural representation.

Fig. 2 is a distribution plate synoptic diagram among Fig. 1.

Fig. 3 is Fig. 1 middle cylinder body lower end and folding awl end socket connection portion enlarged view.

Fig. 4 is Fig. 1 middle cylinder body upper end and elipse head connection portion enlarged view.

Among the figure: 1-scum pipe, 2-flange, 3-folding awl end socket, the 4-wear ring, 5-choma, 6-insulation water water inlet pipe, the 7-flange, 8-chuck, 9-filter cloth, the 10-urceolus, 11-ear seat, 12-inner core, the 13-wash tub pipe, 14-flange, 15-flange, the 16-flange, 17-elipse head, 18-nozzle for thermometer, the 19-flange bolt, 20-filter cloth sleeve, 21-distribution plate, the 22-washing water are taken over, the thick phosphorus inlet pipe of 23-, 24-nozzle for pressure gauge, 25-is incubated water outlet pipe, 26-insulation water water inlet pipe, and 27-is incubated water outlet pipe, 28-back flushing water pipe, 29-row phosphorus pipe, 30-clamping flange.

Embodiment

Below by embodiment the utility model is further described, embodiment only is used for detailed description of the present utility model, does not therefore limit the utility model.

At first do the preparation work before driving:

1, total system is done the water test, and system pressure is added to 0.6MPA, pressurize 1 hour, and no pressure leakage is qualified.

2, pipeline and tank body heat-insulation system are opened, pipeline and groove, jar are carried out preheating, notice that holding temperature is controlled between 70-90 ℃.

3, in pressing the phosphorus jar, fill with hot water (available slag bath water).Notice that a jar interior temperature is controlled between 60-80 ℃.

Carry out according to the following steps then:

One, with liquid thick phosphorus or the mud phosphorus of thick phosphorus purity between 10%-30%, presses the phosphorus jar by being pumped into, be thick phosphorus storage tank, the mud phosphorus of purity between 10%-30% that the internal reservoir production system produces by thick phosphorus storage tank; Measure the liquid level (simple machine of also available survey phosphate potential is measured) of pressing the phosphorus jar by vision slit, press the overflow water in the phosphorus jar to flow to the lean phosphorus mud melt pit, when thick phosphorus arrives overflow port soon, stop to carry, close imported valve and overflow port valve by overflow port; Wash the phosphorus transporting pipe line then.

Two, open from pressing phosphorus transporting pipe valve and this equipment row phosphorus tube valve of phosphorus jar to this equipment; Slag bath hot water with temperature 60-80 ℃ is pressed into thick phosphorus in this equipment, the heat preservation hot water temp in the chuck 8 between 70-90 ℃, pressure≤0.4MPA.Also used vapour insulation.

Three, open slag bath water and enter the valve of pressing the phosphorus jar, with the thick phosphorus of slag bath hydraulic pressure, make it to enter in this equipment and filter, this equipment inner control working pressure is 0.2-0.6MPA, temperature 60-80 ℃.

Four, liquid phosphor passes through filter layer of cloth and enters smart phosphorus chuck in this equipment, sends into smart phosphorus storage tank by row's phosphorus pipe 29 of this equipment, and then packing.The thick phosphorus purity of yellow phosphorus 〉=99.9% from 29 eliminatings of row's phosphorus pipe.

When five, treating that this equipment row phosphorus pipe does not have yellow phosphorus and discharges, stop pressing the pulp water of phosphorus jar to supply with, close the valve on this equipment row phosphorus pipe, open the lean phosphorus mud wash water valve on the scum pipe 1, the lean phosphorus mud of thick phosphorus purity≤5% is entered the lean phosphorus mud melt pit.During row's lean phosphorus mud, if lean phosphorus mud can't efflux, then open the back flushing water valve on the scum pipe, the heating lean phosphorus mud strengthens its flowability, makes it to be easy to efflux.Not enough as the hot water temperature, can select for use phosphorus furnace gas manufacture hot water or steam heating method to handle; System pressure is excessive, and the pulp water reverse flow valve in the available system is regulated pressure.

Five, open all this equipment for washing penstocks, this equipment is cleaned, rinse water enters the lean phosphorus mud melt pit.

Filter residue in this equipment slowly moves down along the equipment axis, flows out equipment by slag-drip opening 1 pipeline, enters to be incubated in the mud phosphorus collecting tank to keep in, and temperature is between 60-80 ℃, and pressure is between 0.2-0.6MPA.Filter cloth regularly carries out online flushing, improves operational efficiency, but the filter cloth washing automated operation.According to the phosphorus content in the mud phosphorus, phosphorous filter residue regularly send and presses the phosphorus jar in the mud phosphorus collecting tank, this equipment of being pressed into carries out further phosphorus and reclaims, and send mud phosphorus sulphuric acid plant to produce phosphoric acid (or mud phosphorus returns the stove recovery) behind the residual phosphorus of filter residue≤5%, and burning back residue can be used as the fertile outward transport processing of phosphorus slag.

Flushing cinder water when yellow phosphorus is produced in the present embodiment utilization be incubated and and can be used as and press phosphorus water, reduced the steam usage quantity, saved the energy.In pressing phosphorus and this equipment, do not need whipping device, abandon using the import metallic filter material and use homemade industrial filter cloth, accessory more is easy to get, reduced cost, easy to maintenance.

Above-mentioned phosphorus separates equipment for purifying and is made up of elipse head 17, cylindrical shell and folding awl end socket 3 three parts.Elipse head 17 is tightly connected with flange 16 with the cylindrical shell upper end, does sealing material with phenyl tetrafluoride pad or asbestos packing between two flange faces, cylindrical shell lower end and 3 welding of folding awl end socket; Elipse head 17 is provided with thick phosphorus inlet pipe 23, wash tub pipe 22, thermometer boss 18 and pressure gauge connection 24, thick phosphorus inlet connection 23 links to each other with the phosphorus pipe of pressing the output of phosphorus jar, thick phosphorus enters thus, wash tub pipe 22 links to each other with washing pipe, be used for washing equipment inside, thermometer boss 18, pressure gauge connection 24 link to each other with tensimeter with thermometer respectively, are used for temperature, pressure in the metering facility.Urceolus 10 peripheries of cylindrical shell are provided with insulation jacket 8, and chuck 8 welds together with urceolus 10, walks hot water or steam between urceolus 10 and the chuck 8, and chuck 8 is provided with the import and export pipe of insulation hot water or steam.Adapter on cylindrical shell insulation jacket and chuck is the carbon steel material, and other all materials are stainless steel.

Be provided with inner core 12 and filter cloth sleeve 20 in the cylindrical shell, uniform filter opening on inner core 12 and the filter cloth sleeve 20, filter cloth 9 is arranged between two, and the thickness of filter cloth 9 is 2-4mm, and mesh is the 80-400 order, thick phosphorus distribution plate 21 is arranged in the filter cloth sleeve 20, between inner core 12 and the urceolus 10, the bottom welds together by seal mouth ring 5, and top is by cooperating with clamping flange 30, clamping flange 30 is welded on inner core top, and is gapped between clamping flange 30 and the urceolus 10.Inner core 12 and filter cloth sleeve 20 and filter cloth between the two 9 link together by bolt; Thick phosphorus distribution plate 21 is welded on the filter cloth sleeve (20), can be polylith, distance between plate and the plate is 500-800mm, its bottom distance from wear ring 4 is 300-500mm, thick phosphorus by device interior by thick phosphorus distribution plate 21 uniformly distributings in filter cloth sleeve 20, under the effect of hydraulic pressure, yellow phosphorus and water are by filter cloth sleeve 20, pass filter cloth 9 and inner core 12 again, enter the space between urceolus 10 and the inner core 9, enter smart phosphorus storage tank by row's phosphorus pipe subsequently.And the mud phosphorus of content≤5% prolongs axis at device interior and moves down, and enters folding awl end socket 3 by wear ring 4, finally is discharged to the lean phosphorus mud melt pit by scum pipe 1.Row's phosphorus pipe 29 centers are 50mm from the distance of wear ring 4, and its position on the equipment body circumference is indefinite, is random.The lower end of folding awl end socket 3 is provided with scum pipe 1.

Claims (4)

1, a kind of phosphorus separates equipment for purifying, it is characterized in that being made up of elipse head (17), cylindrical shell and folding awl end socket (3) three parts, and elipse head (17) is connected with the flange bolt seal with the cylindrical shell upper end, cylindrical shell lower end and folding awl end socket (3) welding; Elipse head (17) is provided with thick phosphorus inlet pipe (23) and washing water are taken over (22); The urceolus of cylindrical shell (10) periphery is provided with insulation jacket (8), be provided with inner core (12) and filter cloth sleeve (20) in the cylindrical shell, inner core (12) and filter cloth sleeve (20) are gone up uniform filter opening, filter cloth (9) is arranged between two, inner core (12) and filter cloth sleeve (20) and filter cloth (9) between the two link together by bolt, thick phosphorus distribution plate (21) is arranged in the filter cloth sleeve (20), thick phosphorus distribution plate (21) is welded on the filter cloth sleeve (20), inner core (12) welds together by seal mouth ring (5) with the bottom of urceolus (10), top cooperates with clamping flange ring (30), clamping flange (30) is welded on inner core (12) top, gapped between clamping flange (30) and the urceolus (10), row's phosphorus pipe (29) is arranged on the bottom of urceolus (10); The lower end of folding awl end socket (3) is provided with scum pipe (1).

2, phosphorus as claimed in claim 1 separates equipment for purifying, and the thickness that it is characterized in that described filter cloth is 2-4mm, and mesh is the 80-400 order.

3, phosphorus as claimed in claim 1 separates equipment for purifying, it is characterized in that described row's phosphorus pipe (29) center is 40-60mm from the distance of wear ring (4).

4, phosphorus as claimed in claim 1 separates equipment for purifying, it is characterized in that described thick phosphorus distribution plate (21) is a polylith, and the distance between plate and the plate is 500-800mm, and its bottom distance from wear ring (4) is 300-500mm.

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