CN201158632Y - Asphalt former - Google Patents

Abstract

An asphalt shaper is characterized in that the shaper comprises a tubular body with one end closed; an opening connected with an asphalt delivery pipe is formed at the other end of the tubular body; a plurality of nozzles are disposed on the pipe wall of the tubular body for spraying the asphalt from the nozzles onto a lower asphalt receiving device. The nozzle-type shaper is adopted as the substitute for a feeder, therefore, the method has the advantages that the process is simple; the cost is low; the operation is convenient; the cured asphalt is cylindrical and has uniform thickness and fewer hollow cores; and the water content is reduced by 1% or higher; and meanwhile, since the high-temperature materials (such as asphalt) are sprayed from the nozzles and then instantly enter the water, the time of the high-temperature material exposure in the air short, the contact area with the air is small, thereby the fume is hardly generated and the operational environment is improved.

Description

A kind of asphalt moulding device

Technical field

The utility model relates to a kind of asphalt moulding device, more specifically to a kind of easily former of solidified liquid of coal-tar pitch, petroleum pitch or other cooling back that is used for.

Background technology

Material feeder (blowing funnel) is adopted in the mid-temperature pitch of domestic coke-oven plant or the moulding of modified pitch mostly, and pitch flows out from the sieve aperture of material feeder, flow to be dipped on the drag conveyer that moves in the water.Because the material feeder surface-area is big, asphalt temperature is high, a large amount of bitumen flue gas volatilizations.Flow velocity was fast when asphalt temperature was high, and a large amount of pitches are met the water generates bubbles, and lumpd into spumescence and float on the cooling water surface, sticked at the drag conveyer sidewall when serious and did not flow, and needed by the labor cleaning.Pitch pipeline, blowing funnel latch up phenomenon can appear again in asphalt temperature when low.The operative employee almost can not leave the scene in the blowing process.Because the material feeder most hollow of pitch of emitting, frangible, middle suction or water absorbent surface, moisture content surpasses that GB requires≤and 5%.

External pitch cooling forming adopts in the water direct process for cooling, adopts tablets press or nozzle granulation mostly, and pitch cools off in water, and pitch particle is sent into feed bin after worm conveyor and lift are sent to dehydration and drying.Have with the direct submerged of jet pipe (as French technology), eliminated the pollution of bitumen flue gas.Adopt the steel band type moulding process that mainly contains Germany and the gondola bucket formula moulding process of the indirect process for cooling of water.Petroleum pitch adopts the chain type shaper mostly, and primary structure comprises pitch bucket, roller, carrier bar etc.The pitch bucket is perishable, need be coated with inorganic zinc rich paint therein, need or spill talc slurry at pitch bucket middle berth wrapping paper in order to prevent sticking bucket.This system operation maintenance cost height, labour intensity is big, pollutes big.In recent years domestic part coking producer introduces the exclusive technology or the patented technology of state's outer nozzle moulding, and effect is better, but investment is big, the technology transfer fee height.

The utility model content

For improving hollow, frangible, moisture height in the asphalt moulding process, polluting problems such as big, the utility model provides the asphalt moulding device that a kind of technology is simple, investment is little, easy to operate, both significantly reduce pollution, solved hollow, frangible, the moisture high problem of asphalt moulding process again.

For addressing the above problem, asphalt moulding device of the present utility model adopts following technical scheme:

A kind of asphalt moulding device is characterized in that, comprises the tubular body of end sealing, the described main body the other end have one with the opening of asphalt delivery pipe coupling, a plurality of nozzles are installed on the tube wall of main body, with pitch by nozzle ejection to the pitch receiving trap of below.

Wherein, preferably, tubular body is straight tube, U type pipe and serpentine tube, and its blind end removably seals with blind plate, and nozzle is installed in lower body part.

Wherein, also comprise heating copper tube, copper pipe is wrapped on the tubular body outer wall, with vapour source UNICOM.

Heating copper tube is wrapped on the outer wall of main body, is connected with vapour source, in the cleaning main body or before asphalt moulding, by the heat heating tube main body of steam, guarantees that pipeline is unobstructed.

Wherein, preferably, tubulose is responsible for to taper(ed)pipe, flows to caliber along pitch and dwindles gradually.

This pipe is near big with the section diameter of asphalt delivery pipe coupling, and other section diameters are little, can guarantee the pressure in main body downstream like this, and nozzle can evenly be sprayed, thereby guarantees the effect of asphalt moulding.

Wherein, preferably, described each nozzle is parallel, and has 0 ° of-60 ° of slanted angle of forward direction with vertical direction.

Wherein, preferably, the length of described nozzle is 20mm-60mm.

Wherein, preferably, the injector spacing scope is 80mm-160mm.

The utility model adopts the nozzle-type former to replace material feeder, and this method technology is simple, investment is little, easy to operate, can solve problems such as the moulding product outward appearance is bad, moisture is high, pollution is big.Pitch after the curing is column, even thickness, hollow few, and water content reduces more than 1%.Simultaneously, be exposed to when airborne compole and lack because high-temperature material (as pitch) enters the water when nozzle penetrates moment, also very little with the contact surface of air, almost there is not flue gas, improved operating environment.

Description of drawings

Fig. 1 is the synoptic diagram of asphalt moulding device of the present utility model;

Fig. 2 is the sectional view of Fig. 1 along the A-A line;

Fig. 3 is the B place sectional view of nozzle of the asphalt moulding device of Fig. 1;

Fig. 4 is the synoptic diagram of the snakelike nozzle-type former of another embodiment of the present utility model;

Fig. 5 is the synoptic diagram of the 3rd embodiment of nozzle-type asphalt moulding device of the present utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments asphalt moulding device of the present utility model is described further.

As shown in Figure 1, asphalt moulding device of the present utility model comprises main body 1 and heating copper tube 2.Main body 1 is a U type pipe, and respectively there is a flange at two ends, and an end flanges 4 is parallel with U type pipe, is convenient to and the asphalt delivery pipe coupling sealing of the other end flange 5 usefulness blind plates, removable cleaning during shut-down.The straight tube of U type pipe tiltedly below respectively has 8 nozzles, 9, two rows' nozzle 9 to be interspersed.Shown in Fig. 2 and 3, big outer little horn-like in nozzle 9 is, nozzle 9 points to the throughput direction of drag conveyers, and with vertical direction 45 ° angle is arranged.

Heating copper tube 2 is wrapped on the U type pipe outer wall of main body 1, is connected with vapour source, and in cleaning main body 1 or before asphalt moulding, the heat heating U type pipe by steam guarantees that pipeline is unobstructed.

During use, asphalt delivery pipe coupling with U type pipe and asphalt delivery equipment, U type pipe is fixed on the eminence of jet hole apart from water surface 5cm～10cm, drag conveyer is positioned under the U type pipe under water, vergence direction along nozzle moves, material is under certain temperature, pressure, flow, pass through forming nozzle, the bore of nozzle and number must satisfy pitch or other liquid stratified flow state flows out, in water (flow) direction oblique fire entry at an angle, the column of even thickness is a determining deviation and solidifies cooling in water.Improve hollow, the caking in coal-tar pitch, the petroleum pitch moulding process, moisture height, polluted problems such as big, that labour intensity is big.

Use the nozzle moulding, easy to adjust, the problem of the frequent plug-hole of coal-tar pitch material feeder, flash or caking can not appear, and can not occur the sticking bucket of petroleum pitch, card bucket yet, fall faults such as bucket, derailing.Pitch after the curing is column, even thickness, hollow few, and water content reduces more than 1%.Simultaneously, be exposed to when airborne compole and lack because high-temperature material (as pitch) enters the water when nozzle penetrates moment, also very little with the contact surface of air, almost there is not flue gas, improved operating environment.

Fig. 4 is another embodiment of the present utility model, main body 10 be shaped as snake bend, this form is used for the asphalt moulding device of big flow, is convenient to the layout of nozzle.

Fig. 5 is the 3rd embodiment of the present utility model, and main body 20 is a straight tube, and this pipe is near big with the section diameter of asphalt delivery pipe coupling, other section diameters are little, can guarantee the pressure in straight tube downstream like this, nozzle can evenly be sprayed, thereby guarantee the effect of asphalt moulding.

Snake bend shown in Figure 4 also can adopt taper(ed)pipe shown in Figure 5, connects by concentric reducer.

By the viscosity of liquid under the certain temperature, density, flow etc., design nozzle-type former.The main body of former is snakelike, U-shaped or straight shape pipe, and the U-shaped pipe is generally selected the steel pipe of DN80 for use, and heating copper tube is generally selected the copper pipe of DN10 for use.According to actual service condition, the nozzle length scope is 20mm-60mm, preferred 40mm, and the angle of nozzle and vertical direction is 0 ° of-60 ° of inclination of forward direction, preferred 45 °.The spacing range 80mm-160mm of same row's nozzle.

According to temperature, fluctuations in discharge, nozzle quantity can suitably increase and decrease, and guarantees that reynolds number Re is not more than 2000, and promptly fluid is viscous flow (laminar flow) state and gets final product.

The jet exit internal diameter of mid-temperature pitch is preferably 12mm, and the nozzle number is 12.Flow is pressed 10.5m ³/ h meter, the flow velocity u=2.15m/s in the time of 160 ℃, viscosity, mu=0.323Pa.S, density p=1.2g/cm ³, calculate $\mathrm{Re}=\frac{\mathrm{du\ρ}}{\mathrm{\μ}}=96.$ Satisfy the viscous flow condition this moment.

The jet exit internal diameter of modified pitch is preferably 10mm, and the nozzle number is 12.Press 8.5m ³/ h meter, the flow velocity u=2.51m/s in the time of 170 ℃, viscosity, mu=4.0Pa.S, density p=1.2g/cm ³, calculate $\mathrm{Re}=\frac{\mathrm{du\ρ}}{\mathrm{\μ}}=7.5.$ Satisfy the viscous flow condition this moment.

According to practical experience, the general selection, the outlet inside diameter ranges of nozzle is 6mm-20mm, 6-30 of nozzle quantity scopes.

, but should be understood that under the situation that does not break away from relevant protection domain defined by the claims that those skilled in the art can make change and/or revise according to embodiment of the present utility model describing the present invention property and nonrestrictive description.

Claims (9)

1, a kind of asphalt moulding device, it is characterized in that, comprise the tubular body of end sealing, the described main body the other end have one with the opening of asphalt delivery pipe coupling, a plurality of nozzles are installed on the tube wall of main body, with pitch by nozzle ejection to the pitch receiving trap of below.

3, asphalt moulding device according to claim 1 and 2 is characterized in that, comprises that also heating copper tube, heating copper tube are wrapped on the tubular body outer wall, with vapour source UNICOM.

4, asphalt moulding device according to claim 1 and 2 is characterized in that, tubulose is responsible for to taper(ed)pipe, flows to caliber along pitch and dwindles gradually.

5, asphalt moulding device according to claim 3 is characterized in that, tubulose is responsible for to taper(ed)pipe, flows to caliber along pitch and dwindles gradually.

6, asphalt moulding device according to claim 1 and 2 is characterized in that, described each nozzle is parallel, and has 0 ° of-60 ° of slanted angle of forward direction with vertical direction.

7, asphalt moulding device according to claim 3 is characterized in that, described each nozzle is parallel, and has 0 ° of-60 ° of slanted angle of forward direction with vertical direction.

8, asphalt moulding device according to claim 4 is characterized in that, described each nozzle is parallel, and has 0 ° of-60 ° of slanted angle of forward direction with vertical direction.

9, asphalt moulding device according to claim 1 and 2 is characterized in that, the length of described nozzle is 20mm-60mm.

10, asphalt moulding device according to claim 1 and 2 is characterized in that, the injector spacing scope of described nozzle is 80mm-160mm.

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