The belt channel press is comprised of two tensioned channel belts with slime layers, which go through a progression of routinely organized roller press chambers in a S-shape, depending on the pressure of the channel belts themselves to frame a squeezing and shearing power on the muck layer, crushing out the slender water in the ooze layer and getting a mud cake with high solids content, to accomplish ooze dewatering.
The belt channel press dewatering machine is essentially made out of channel belt, roller press chamber, tensioning gadget, avoidance gadget, flushing gadget and driving gadget, as displayed in the image underneath.
No matter what the sort of gear, it is inescapable that different issues will be experienced underway. This article sums up the 5 normal kinds of shortcomings of belt channel presses and proposes answers for reference!
01Belt run-off and collapsingIn the activity of the belt channel press, the channel belt frequently runs off and overlap, and the belt wrinkle and the ooze scrubber continually rubs against the burst bringing about a lot more limited existence of the channel belt, carrying more noteworthy monetary misfortunes to the undertaking. Coming up next are the primary motivations behind why the channel belt is redirected and collapsed.
(1) The remedial roller activity isn't touchy
The activity of the avoidance roller isn't touchy, and the channel belt is redirected aside. When the breaking point switch falls flat, one finish of the channel belt contacts the side edge of the dewatering machine and is broken.
Arrangement: If the air line or air sack is harmed, it should be supplanted on schedule; the remedial slider is rusted and stuck, and should be rusted and greased up; the restorative air valve is defective or the remedial point isn't changed accurately, and should be fixed.
(2) Wrong roller position or neighborhood wear
The place of the press roller or strain roller of the belt press is lopsided, and the stretch between the rollers at the two closures of the channel belt changes, bringing about lopsided power on the two sides of the channel belt, and the belt flees from the huge power to the little power end.
Arrangement: Check whether the roller establishment is adjusted, the present circumstance is not difficult to show up in the belt press after the upgrade; support of direction and rollers, like mileage convenient upkeep.
(3) Uneven material mud
At the point when the ooze enters the press segment, the mud cake on the channel belt is thick on one side and meager on the other, largest filter press manufacturer and the channel belt will move to the thick side. The offset power and the remedial retracement power are in inverse headings against one another, and the channel belt will overlap at the good and bad limit of the mud layer.
Arrangement: Check the ooze dispersion of the screen, on the off chance that the offset load is not kidding, you really want to tidy up the slop channel dissemination offices and change the place of the level mud plate; mud rake nearby wear or not introduced, you really want to check and fix the mud rake; supplant the mud scrubber.
02Channel belt excessively messyMessy channel belt flushing can truly influence the penetrability of the channel belt, prompting strange ooze dewatering, decreased desludging and high water content of the mud cake, with the accompanying primary driver.
(1) Low flushing water pressure, messy channel belt in the wake of desliming, channel openings are hindered influencing the channel effectiveness of the channel belt.
The present circumstance is for the most part brought about by a break in the flushing water pipe, a breakdown in the flushing water siphon, a blockage in the discharging channel screen with an excess of waste, or a blockage in the flushing channel belt spout.
Arrangement: Check whether the flushing water pipeline is spilling, regardless of whether the flushing water siphon is flawed, notice the difference in flushing water tension, and clean the stopped up sifter on schedule.
(2) Improper flocculant proportioning or dosing
The flocculation of slop and flocculating fluid affects the dewatering impact. The grouping of the flocculating fluid proportion or the sum added is excessively high, which squanders the specialist, yet in addition glues the channel belt and decreases the penetrability, as well as the other way around, which likewise influences the dewatering of slime.
Arrangement: According to the qualities of the slime and the water content of the concentrated slop, the proportion and dose of the synthetic compounds ought to be changed fittingly; expand the blending season of the flocculant with the goal that the dissolvable is completely broken down and stay away from remaining flocs hindering the pores of the channel fabric.
03Mud running from the channel beltAt the point when the water content of the slime to be dewatered is high, the ooze floods from the two sides of the screen. The justification behind this is that during the change of the slime from fluid to semi-strong, the fluid slurry is profoundly fluid and the slurry floods from the two sides of the roller. The purposes behind mud running are.
(1) Low approaching ooze focus is the primary driver
Ooze focus, regularly alluded to as the solids content of ooze. Assuming that the slime solids content is under a specific level, the slop dewatering execution is poor and how much flocculant increments. Right now the slime enters the belt channel press and there is a mud spill and the channel belt can't be squeezed.
Arrangement: Turn off the air circulation and increment the slop thickening time however much as could reasonably be expected; lessen the recurrence of the slime move siphon and the dewatering machine belt speed.
(2) Sludge flocculation impact isn't acceptable
If the flocculant isn't adequately added, the muck isn't flocculated well, the hairlike water can't be changed into free water in the gravity zone and the fluid ooze enters the squeezing zone and is generally run out by expulsion.
Arrangement: Add the fitting measure of PAM arrangement as per the flocculation of the ooze and the water content of the muck cake.
(3) Arching of the channel belt
The angling of the channel belt is the aftereffect of the two channel belts folded over the outer layer of the rollers not covering and the external belt curving or the lower belt opening. The justification for the curving of the channel belt is that the inner strain of the belt isn't uniform, and the nearby pressure isn't to the point of defeating the running opposition, making the channel belt slack.
Arrangement: actually take a look at the running condition of the contiguous roller at the curve, keep up with the course; check the tensioning arrangement of the angling channel belt, diminish the opposition of the tensioning aide bar; change the tensioning pneumatic force to make the strain of the two channel belts in a moderate degree.
(4) Too much gaseous tension
After the flocculation of the material into the expulsion segment has not yet arrived at a steady state from the stream state is a solid tension expulsion, this is the channel belt by the chamber activity pressure is excessively enormous, right now ought to be acclimated to the fitting scope of pneumatic force.
04Slippage of the channel beltThe slippage of the channel belt is mostly brought about by the over-burden of the approaching mud, the inadequate strain of the channel belt or the flocculant stuck on the outer layer of the driving roller, the wear of the rollers or the firmness of the pressing and rolling.
Arrangement: Reduce the mud admission; check whether the air pipe associated with the chamber is spilling, and regardless of whether the tensioning strain of the channel belt is moderate and changed as needs be; cautiously check whether the rollers are rigid or privately worn, and fortify the oil of the orientation and cog wheels.
05Low solids content of the dewatered ooze cakeOn the off chance that the solids content of the dewatered slop is low, it won't just goal the wet mud to adhere to the channel fabric and be hard to eliminate, expanding the trouble of muck dewatering, however will likewise build the expense of ooze treatment because of the great water content, the primary purposes behind which are as per the following.
(1) The sum or kind of flocculant added isn't appropriate
This can cause changes in the idea of the slop or how much mud took care of, bringing about a decrease in the dewatering properties of the slime, and ought to be tried again to choose the ideal flocculant type or measurements.
(2) Too quick belt speed
The belt channel press needs more an ideal opportunity to press the slime and remain in the pre-dewatering area, bringing about a diminishing of the cake and an abatement in the solids content, the countermeasure is to decrease the belt speed.
(3) The pressure of the channel belt is excessively little
The strain is too little to even consider crushing the muck enough and the strong pace of the mud cake in the wake of dewatering is decreased. The strain of the belt channel press ought to be acclimated to 0.5-0.6MPa.
(4) The channel belt is obstructed and the water can't be sifted through, with the goal that the water content of the dewatered slime rises, the crease of the channel belt is preposterous or harmed and the channel belt is maturing.
For this situation, the machine ought to be halted promptly and placed into activity again after the muck on the channel belt is flushed; fix or supplant the channel belt.
The area of the belt channel press where the issue regularly happens is essentially the channel belt, roller, bearing, adjustment of avoidance, and so on In this manner, the activity and the executives faculty are needed to utilize the belt channel press as per its working strategies, consistently examine the applicable pieces of the belt press, and research the reasons for disappointment from simple to hard to forestall further extension of the effect of disappointment.