Summary of the invention
The objective of the invention is to design a kind of spiral casing type coal fines sampling apparatus,, reduce environmental pollution to improve sampling efficiency.
According to technical scheme provided by the invention, described spiral casing type coal fines sampling apparatus comprises sampling part and transport portion, it is characterized in that: stopple coupon is arranged in sampling part, and the transversal section of stopple coupon is scroll casing shape; Flood dragon is arranged in transport portion, and the inner of flood dragon is positioned at stopple coupon, and the shaft extension of flood dragon goes out the outer end of flood dragon, is provided for connecting the interface of sampling jar in the outer end of flood dragon.
Lower end at interface connects the sampling jar that is interconnected, and the operation valve of on-off action has been set on interface.Have the rectangle sample tap on the stopple coupon, this sample tap is along the tangential direction of scroll casing shape stopple coupon; Described flood dragon is positioned at the center of scroll casing shape stopple coupon.Handle is installed in outer end at axle, in the end of the close handle of flood dragon sealing socket is arranged, and between sealing socket and flood dragon and axle thereof airtight and watertight padding is arranged.
Advantage of the present invention is: 1, the shell of stopple coupon adopts the spiral case form, utilizes cyclonic principle that coal dust is entered in the housing, reaches the effect of collecting coal dust.2, collect coal dust work and all under full closeding state, carry out, prevent the excessive and unrestrained of coal dust, clean environment firendly.3, coal dust is taken out by handle rotation by flood dragon, and is easy and simple to handle, saves time, laborsaving, accurate.4, easy accessibility detachably gets off when not using, and maintenance does not influence the coal dust operation in the pipeline simultaneously easily yet.Rational in infrastructure, weight is little.
Embodiment
As shown in the figure: described spiral casing type coal fines sampling apparatus comprises sampling part and transport portion, and stopple coupon 1 is arranged in sampling part, and the transversal section of stopple coupon 1 is scroll casing shape; Flood dragon 2 is arranged in transport portion, and the inner of flood dragon 2 is positioned at stopple coupon 1, and axle 8 outer ends of stretching out flood dragon 2 of flood dragon 2 are provided for connecting the interface 10 of sampling jar 4 in the outer end of flood dragon 2.The inner sealing of stopple coupon 1 is stopped up, so that flood dragon 2 is taken out the coal dust sample in the stopple coupon 1.
Lower end at interface 10 connects the sampling jar 6 that is interconnected, and the operation valve 5 of on-off action has been set on interface 10.When beginning to take a sample, just open operation valve 5, when stopping sampling, in the time of need taking off sampling jar 6, must closed control valve 5.Have rectangle sample tap 9 on the stopple coupon 1, this sample tap 9 is along the tangential direction of scroll casing shape stopple coupon 1, and described flood dragon 2 is positioned at the center of scroll casing shape stopple coupon 1, so that coal dust enters in the flood dragon 2 smoothly.
Handle 3 is installed in outer end at axle 8, turning handle 3, driving flood dragon 2 by axle 8 rotates, sample in the stopple coupon 1 is delivered in the sampling jar 6, there is sealing socket 7 end at flood dragon 2 close handles 3, between sealing socket 7 and flood dragon 2 and axle 8 thereof airtight and watertight padding 4 is arranged, and all is under the sealing state to guarantee whole sampling process, avoid coal dust to escape contaminated environment.Rotating operating handle 3 drives auger 2 rotations, and sampler is started working, and coal dust can be output in the sampling jar continuously.
When installing with use:
1, determines the installation site of spiral casing type coal fines sampling apparatus on pulverized coal feed pipe 11 earlier.
2, leave hole 12 according to the size of pulverized coal feed pipe 11, the pore size in hole 12 can be referring to accompanying drawing.In the time of need not taking a sample, this sampler should be taken off, with pipe plug seal bore 12.
3, insert this sampler, notice that the sample tap 9 of stopple coupon 1 should align the breeze airflow direction, be beneficial to capture coal dust, see shown in the arrow among Fig. 1.
Rotation direction when 4, auger 2 is rotated counterclockwise to sampling.When sampling, should note auger 2 rotation directions, to guarantee that pulverized coal flow is in sampling jar 6.
When 5, taking a sample, at first will turn clockwise several weeks, cleaning residues in the outmoded coal dust in the sampler, and then begins normal sampling work, to guarantee obtaining fresh coal dust at every turn at every turn.During sampling, the rotating speed of auger 2 is wanted fast.
6, when sampling, still to effluxing powder, cause unnecessary fault after noting in sampling jar 6, not being full of coal dust.
7, when getting sampling jar 6, first closed control valve 5, in order to avoid contaminated environment.
Airtight and watertight padding 4 (being graphite annulus) in will making regular check on and change auger 2 outer end sealing sockets 7 at ordinary times.Check that simultaneously operation valve 5 has or not latch up phenomenon, the aperture of operation valve 5 is placed suitable position.