CN204134319U - Slag wax filter plant - Google Patents

Abstract

The utility model discloses a kind of slag wax filter plant, to be positioned at the central collection tube of vertical cylinder enclosure interior central authorities for axis, parallel some horizontal blades are installed, every sheet horizontal blade at least comprises blade body and surface filtration channel layer, bottom described central collection tube, discharge nozzle junction is provided with sealing device, sealing device adopts sealing ring and friction plate comprehensively to seal.The utility model carries out improving for many places such as sealing, blade, charging and cleanings based on existing level tray formula leaf filter, can meet the high temperature particular/special requirement that slag wax filters.Filtering technique of the present utility model can carry out Separation of Solid and Liquid to slag wax, rational technology efficiently, and the excellent and safety of filter effect, meets the high request of the separating and filtering of F-T synthesis completely.

Description

Slag wax filter plant

Technical field

The utility model relates to field of chemical equipment, the filter plant of especially a kind of slag wax and stable wax.

Background technology

F-T synthesis is by the key reaction of ICL for Indirect Coal Liquefaction in coal liquifaction technique, and the wax that F-T synthesis generates, through hydrofinishing and hydrocracking, can manufacture the petrol and diesel oil of high grade; Also directly high melting-point wax can be produced through degassed, cooling.The wax that Chinese patent 201120472284.6---mono-kind is used for Fischer-Tropsch synthesis and slag wax, stablize in Lasaxing Oilfield system, need to utilize filter that the liquid phase slag wax or wax that contain irony catalyst fines are carried out Separation of Solid and Liquid, collect solid phase irony catalyst separation to recycle, highly purified liquid wax then manufactures petrol and diesel oil for deep processing.From the slag wax that Fischer-Tropsch synthesis device is discharged, containing a large amount of powdery fischer-tropsch synthetic catalysts, its solid content is about 8 ~ 20%, and solid content final after separating and filtering needs to be less than or equal to 5ppm, and filtering requirement is very high.

Slag wax refers to containing a large amount of particle diameter the liquid wax of the solid impurity such as catalyst being 20 ~ 200um, and fusing point is 90 DEG C ~ 100 DEG C, and 180 DEG C time, density is about 689 ~ 800kg/ m ³; In slag wax, the density of solid impurity is about 4 ~ 6 times of liquid wax density, and solid-liquid density difference is very large.Even if liquid wax is in molten state, viscosity is still very large, and mobility is very poor, therefore can not directly adopt existing separating and filtering equipment to carry out Separation of Solid and Liquid to slag wax.

Utility model content

The applicant can not carry out the shortcoming of Separation of Solid and Liquid for above-mentioned existing separating and filtering equipment to slag wax, provide a kind of reasonably slag wax filter plant, thus effectively can realize the Separation of Solid and Liquid of slag wax.

The technical scheme that the utility model adopts is as follows:

A kind of slag wax filter plant, to be positioned at the central collection tube of vertical cylinder enclosure interior central authorities for axis, parallel some horizontal blades are installed, every sheet horizontal blade at least comprises blade body and surface filtration channel layer, bottom described central collection tube, discharge nozzle junction is provided with sealing device, sealing device adopts sealing ring and friction plate comprehensively to seal.

Further improvement as technique scheme:

The central collection tube bottom of described sealing device is fixed with seal sleeve, and sealing inner core is fixed on discharge nozzle, between seal sleeve and sealing inner core, forms closed chamber; The two ends up and down of closed chamber are provided with nonmetal v-ring, between upper-lower seal circle, are provided with non-metallic friction plate.

Arrange one in the one end contacted with unfiltered mixed liquor in order to block the filter ruffle excessively of solid particle, be fixed on the bottom of closed chamber by upper and lower pressure ring.

Described friction plate structure is offer notch at seal sleeve sidewall, and friction plate surrounds after annular is embedded in seal sleeve madial wall, and its both ends are filled in groove side by side.

The plate face of described friction plate offers some inflation port.

Described friction plate is band material, curls up spirality formula and is arranged on seal sleeve madial wall.

Case top is provided with upper feeding pipe, is positioned at below upper feeding pipe in enclosure interior and is provided with baffle plate, or the upper feeding distributor pipe of annular is set.

Vertically be provided with at least one side feed pipe in enclosure interior, the tube wall of side feed pipe is provided with some sides charging hole, charging hole perforate direction, side is the tangential direction along housing cylindrical.

The blade body of blade is the video disc at the shallow end, and outside cone angle α is 3 ~ 5 degree, and does not have vertical drawing section.

At least one shower is vertically set near inner walls, shower is provided with some shower nozzles, aim at the upper table filtering surface of horizontal blade at a certain angle.

The beneficial effects of the utility model are as follows:

The utility model carries out many places improvement based on existing level tray formula leaf filter, by increasing blade thus increasing its work disposal amount, by improving feed system, the mixed liquor in device interior cavity is evenly distributed, thus ensure that the live load of blade is even, adapt to the different large feature of slag wax solid-liquid density difference.The utility model passes through to reduce the outside cone angle of blade and cancellation drawing section, makes leaf disk more mild, the liquid phase that the inequality avoiding solid phase to distribute is residual with minimizing, thus adapts to the speciality of slag wax, also improve the security of equipment.The utility model, by increasing leaf cleaning system, can wash at any time in the gap of work, recover the filter effect of blade in time.

The static and dynamic sealing that the utility model utilizes sealing ring and non-metallic friction plate to realize between revolving meber and static element, make use of V-type circle to realize sealing, swell increment can be absorbed during friction plate expanded by heating, avoid the increase of its thickness and the motor overload that causes and device damage, thus can meet the elevated-temperature seal requirement that slag wax filters.

Filtering technique of the present utility model can carry out Separation of Solid and Liquid to slag wax, rational technology efficiently, and the excellent and safety of filter effect, meets the high request of the separating and filtering of F-T synthesis completely.

Accompanying drawing explanation

Fig. 1 is front view of the present utility model.

Fig. 2 is the top view in A-A cross section in Fig. 1.

Fig. 3 is D portion enlarged drawing in Fig. 2.

Fig. 4 cuts open figure in the horizontal blade of prior art.

Fig. 5 cuts open figure in the utility model horizontal blade.

Fig. 6 is the top view of Fig. 5.

Fig. 7 is the enlarged drawing in B portion in Fig. 1.

Fig. 8 is the enlarged drawing in C portion in Fig. 1.

Fig. 9 is the E-E sectional view in Fig. 8.

Figure 10 cuts open figure in Fig. 9.

Figure 11 is the schematic diagram of the second embodiment of non-metallic seal.

Figure 12 is the schematic diagram of the third embodiment of non-metallic seal.

Figure 13 is slag wax filtering technique described in the utility model.

In figure: 1, blade; 2, lower feed pipe; 3, discharge nozzle; 4, sealing device; 5, central collection tube; 6, housing; 7, motor; 11, blade body; 12, drawing section; 21, upper feeding pipe; 22, baffle plate; 23, side charging aperture; 24, side feed pipe; 25, side charging hole; 26, shower; 27, shower nozzle; 28, cleaning fluid; 41, sealing ring; 42, seal sleeve; 43, friction plate; 44, inner core is sealed; 45, pressure ring; 46, filter ruffle is crossed; 47, groove; 48, inflation port; 61, chuck layer.

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described.

As shown in Figure 1 and Figure 2, slag wax filter plant described in the utility model improves based on existing level tray formula leaf filter, to be positioned at the central collection tube 5 of vertical cylinder housing 6 center of inside for axis, parallelly be provided with some horizontal blades 1, every sheet horizontal blade 1 is made up of blade body 11, filtration channel layer, seal, space collar etc.Lower feed pipe 2 is provided with bottom vertical cylinder housing 6, it is inner that liquid-solid mixed liquor enters housing 6 by lower feed pipe 2, and upwards overflowing internal cavity, the liquid in mixed liquor enters central collection tube 5 by the filtration channel laminar flow on blade 1 surface, and discharges through discharge nozzle 3; Solid in mixed liquor is trapped within filtration channel layer surface and piles up gradually, when after work certain hour, the solid of overheap can affect filter efficiency, now the mixed liquor of housing 6 inside is discharged, and by air-blast device by nitrogen from top to the inner air blast of housing 6, the solid residual to blade 1 upper surface dries up, simultaneously also Ethylene recov phase constituent as much as possible.Then the motor 7 of filter top is started, drive central collection tube 5 and all blade 1 High Rotation Speeds, utilize centrifugal force to be shed by blade 1 surface solid and carry out de-slag to housing 6 inwall, residue falls to bottom cone bucket, is discharged by solid finally by bottom slag discharge.

Existing level tray formula leaf filter is many to be separated solid-liquid at normal temperatures, and housing 6 is single layer structure.The utility model needs to be separated the solid slag particle mixed under the good liquid wax state of mobility, operating temperature is usually at 160 ~ 180 degrees Celsius, therefore housing 6 of the present utility model is sandwich, be provided with chuck layer 61, in chuck layer 61, pass into high-temperature steam during work, housing 6 internal chamber is heated.

Liquid phase in mixed liquor handled by the existing level tray formula leaf filter normally good water of mobility or solution, solid phase is generally active carbon or sand grains etc., the density contrast of this solid liquid phase is not very large, thus solid phase can than being easier to be evenly distributed in liquid phase, and thus existing level tray formula leaf filter only arranges lower feed pipe 2 in bottom.And slag wax solid-liquid density difference handled by the utility model is very large, after slag wax enters housing 6 inner chamber from bottom, the solid phase that density is larger can be deposited on bottom under gravity rapidly, very fast just accumulation the in the horizontal blade 1 of bottom surface is caused to have blocked up solid-phase layer, and horizontal blade 1 surface on top does not retain solid phase substantially, the solid particle that upper and lower horizontal blade 1 is tackled is extremely uneven.This unbalanced live load not only needs to carry out de-slag and cleaning to blade 1 continually, and the serious curtailment working life of whole equipment.For the feature of material handled by the utility model, as shown in Figure 1, the utility model is provided with upper feeding pipe 21 at housing 6 top, be positioned at below upper feeding pipe 21 in housing 6 inside and be provided with baffle plate 22, carry out charging to housing 6 inner chamber by upper feeding pipe 21 and lower feed pipe 2 during work simultaneously, and reduce flow velocity by baffle plate 22, realize the average temperature distribution of mixed liquor.By above-mentioned improvement, the solid particle that upper and lower blade 1 surface retains is substantially equal, and effectively average live load, improves filter efficiency, extend equipment life.The upper feeding distributor pipe of annular can certainly be set, realize uniform cloth.

Existing horizontal blade separator-filter treating capacity is less, usually only arranges the horizontal blade 1 of about 30; And project treatment amount of the present utility model is large, horizontal blade 1 needs to be set to more than 60, and treating capacity is more than the twice of existing filter.In order to the live load of further mean leaf 1, the utility model is provided with side charging aperture 23 at housing 6 side opening, housing 6 inner vertical is provided with at least one side feed pipe 24, as shown in Figure 3, some sides charging hole 25 is evenly equipped with at the tube wall of side feed pipe 24, side charging hole 25 is not directly just offered direction blade, and its perforate direction is the tangential direction along housing cylindrical.During charging, mixed liquor circumferentially tangentially enters housing 6 inner chamber, avoids producing directly impact to the slag blanket that blade 1 is trapped and affecting filter effect.By arranging side feed pipe 24, mixed liquor being uniformly distributed on whole height can be ensured, the live load relative equilibrium of the upper and lower blade 1 of equipment of high throughput can be realized.

During real work, because the material mouth of charging aperture is larger up and down, charging is fast, so utilize it as initial quick feeding; Then utilize the charging as a supplement of side feed pipe at filtration duration of work, side feed tube is relatively milder, thus can ensure that the mixed liquor of inside cavity is evenly distributed up and down.

Existing horizontal blade 1 cross section as shown in Figure 4, outside cone angle α is 5.5 degree, and there is drawing section 12, in the middle part of disk, carry out drawing, not only complex procedures, die cost is high, and due to the material that can supplement during deep-drawing deformation little, the phenomenon that therefore on the corner generating material is thinning is obvious especially, because horizontal blade separator-filter needs High Rotation Speed when de-slag, centrifugal force is comparatively large, and this corner weakness easily deforms and even ruptures, and causes filtering function to lose efficacy even device damage.And larger outside cone angle α, the central authorities of blade 1 also can be caused to pile up more solid phase, and edge solid phase is less, also can remain more liquid in card simultaneously, often needs higher temperature and longer time when drying up.But the slag wax mixed liquor density handled by the utility model is comparatively large, and under Action of Gravity Field, solid particle is more easily gathered in disk central authorities, and due to the burning-point of wax lower, there is a large amount of combustible components, when thus adopting nitrogen to dry up, if overdrying, then fire and explosive risks can be there is.

As shown in Figure 5, Figure 6, blade body 11 of the present utility model eliminates drawing section 12, and direct punch forming is the video disc at the shallow end; Outside cone angle α is reduced to 3 ~ 5 degree simultaneously, is preferably 4.5 degree, makes disc more mild.Improved by this, solid phase can be made more even in the surface distributed of blade 1 on the one hand, avoid the defect of the live load inequality at disc central authorities and edge; Too much liquid can not be remained in simultaneously mild disc, dry up the time shorter, more easily realize technology controlling and process, the probability that reduction accident occurs.And owing to eliminating drawing section 12, make the processing and manufacturing of blade body 11 more convenient, reduce cost, more improve blade strength, more solid particle can be carried and be not easily damaged.

Existing filtering machine with horizontal blade, after filtration a period of time, still has on screen pack that some solid phases are easily bonded at horizontal blade 1 and affects filter effect.Existing equipment fills cleaning fluid in upright shell usually, by simulation filter process, realize the cleaning to blade, but in this cleaning way, cleaning fluid waste is serious, even need whole group of blade to hang out after housing 6 is disassembled piecewise during Severe blockage to clean, effort of taking a lot of work is time-consuming.The solid particle outer surface parcel wax liquid of the material especially handled by the utility model, after temperature declines, wax is as easy as rolling off a log solidifies and sticks to the surface of filter screen, causes de-slag difficulty and filter net jam, more adds the difficulty of cleaning.

As shown in Figure 7, the utility model vertically arranges at least one shower 26 near housing 6 inwall, shower 26 is provided with some shower nozzles 27, and aim at the upper table filtering surface of horizontal blade 1 at a certain angle, every one deck horizontal blade can be sprayed by one or more shower nozzle 27.After horizontal blade 1 High Rotation Speed takes off slag, in shower 26, pass into cleaning fluid 28, flow through shower nozzle 27 and the filter screen on the horizontal blade 1 rotated is carried out high-pressure spraying and washed.This cleaning way effectively reduces cleaning solution consumption; And can wash at any time in the gap of work, recover the filter effect of blade 1 in time.By regulating the pressure into cleaning fluid, comprehensively can wash the central authorities of blade 1 card and marginal portion.

Central collection tube 5 and a whole set of blade need to rotate when taking off slag, and the utility model is provided with sealing device 4 with discharge nozzle 3 junction bottom central collection tube 5, realizes the static and dynamic sealing between revolving meber and static element.As shown in Figure 8, central collection tube 5 bottom is fixed with seal sleeve 42 by securing member, and sealing inner core 44 is fixed on discharge nozzle 3 by securing member, between seal sleeve 42 and sealing inner core 44, forms closed chamber.Be provided with the nonmetal v-ring 41 of multiple layer combination at the two ends up and down of closed chamber, between upper and lower nonmetal V-shaped seal ring 41, be provided with non-metallic friction plate 43.The heat that friction plate 43 can utilize pivoting friction to produce expands and automatically regulates thickness, to realize sealing under the prerequisite ensureing main shaft running accuracy.Entering nonmetal v-ring 41 to prevent the solid particle in mixed liquor causes sealing ring to lose efficacy, one is arranged in order to block the filter ruffle 46 excessively of solid particle in the one end contacted with unfiltered mixed liquor, be fixed on the bottom of closed chamber by upper and lower pressure ring 45, and carry out fastening with an elastomer to crossing filter ruffle 46.

Operating temperature of the present utility model is at 160 ~ 180 degrees Celsius, and therefore the thermal expansion deformation of non-metallic friction plate 43 is comparatively large, if it expands in thickness of slab direction, then locking can occur and cause electromotor overload.In the utility model, the first example structure of friction plate 43 as shown in Figure 9, Figure 10, notch is offered at seal sleeve 42 sidewall, non-metallic friction plate 43 surrounds after annular is embedded in seal sleeve 42 madial wall, its both ends are filled in groove 47 side by side, so when after friction plate 43 expanded by heating, after extending along its length, its end freely extends to absorb swell increment in groove 47.The second embodiment of friction plate 43 as shown in figure 11, the plate face of non-metallic friction plate 43 offers some inflation port 48, utilizes the distortion absorbable expansion amount of circumferential edges after same thermal expansion.As shown in figure 12, non-metallic friction plate 43 blanking is band material to the third embodiment of friction plate 43, and then curling up spirality formula is arranged on seal sleeve 42 madial wall; After expanded by heating band material elongated, but by helical structure and pitch absorb, can not produce equally thickness increase.

Figure 13 shows that slag wax filtering technique flow process of the present utility model, this flow process adopts the utility model two to overlap filter plant tandem to carry out cascade filtration to slag wax.The slag wax mixed liquor solid content of input is about 10 ~ 20%, and the slag wax mixed liquor solid content that first order filter plant exports is 50 ~ 1000ppm; Continue to enter second level filter plant to filter, the pure wax that this grade of equipment output is below solid content 5ppm.

More than describing is to explanation of the present utility model, and be not the restriction to utility model, when without prejudice to the utility model spirit, the utility model can do any type of amendment.

Claims (10)

1. a slag wax filter plant, to be positioned at the central collection tube (5) of vertical cylinder housing (6) center of inside for axis, parallel some horizontal blades (1) are installed, every sheet horizontal blade (1) at least comprises blade body (11) and surface filtration channel layer, it is characterized in that: described central collection tube (5) bottom is provided with sealing device (4) with discharge nozzle (3) junction, sealing device (4) adopts sealing ring (41) and friction plate (43) comprehensively to seal.

2. according to slag wax filter plant according to claim 1, it is characterized in that: central collection tube (5) bottom of described sealing device (4) is fixed with seal sleeve (42), sealing inner core (44) is fixed on discharge nozzle (3), between seal sleeve (42) and sealing inner core (44), form closed chamber; The two ends up and down of closed chamber are provided with nonmetal v-ring (41), between upper-lower seal circle (41), are provided with non-metallic friction plate (43).

3. according to slag wax filter plant according to claim 2, it is characterized in that: arrange one in the one end contacted with unfiltered mixed liquor in order to block the filter ruffle (46) excessively of solid particle, be fixed on the bottom of closed chamber by upper and lower pressure ring (45).

4. according to slag wax filter plant according to claim 2, it is characterized in that: described friction plate (43) structure is, offer notch at seal sleeve (42) sidewall, friction plate (43) surrounds after annular is embedded in seal sleeve (42) madial wall, and its both ends are filled in groove (47) side by side.

5. according to slag wax filter plant according to claim 2, it is characterized in that: the plate face of described friction plate (43) offers some inflation port (48).

6. according to slag wax filter plant according to claim 2, it is characterized in that: described friction plate (43) is band material, curls up spirality formula and is arranged on seal sleeve (42) madial wall.

7. according to slag wax filter plant according to claim 1, it is characterized in that: housing (6) top is provided with upper feeding pipe (21), be positioned at upper feeding pipe (21) below in housing (6) inside and be provided with baffle plate (22), or the upper feeding distributor pipe of annular is set.

8. according to slag wax filter plant according to claim 1, it is characterized in that: housing (6) inner vertical is provided with at least one side feed pipe (24), the tube wall of side feed pipe (24) is provided with some sides charging hole (25), and side charging hole (25) perforate direction is the tangential direction along housing (6) cylinder.

9. according to slag wax filter plant according to claim 1, it is characterized in that: the video disc that the blade body (11) of blade (1) is the shallow end, outside cone angle α is 3 ~ 5 degree, and does not have vertical drawing section (12).

10. according to slag wax filter plant according to claim 1, it is characterized in that: at least one shower (26) is vertically set near housing (6) inwall, shower (26) is provided with some shower nozzles (27), aims at the upper table filtering surface of horizontal blade (1) at a certain angle.