Plate and edge channel press is a sewage treatment framework for slime treatment gear, is a typical hardware in the muck treatment process, this article for the plate and casing channel press to do a nitty gritty presentation and replies, for example, plate and edge channel press questions can be to the Dirt Top people group trade communication!
1、The rule of plate and casing channel press
The plate and casing channel press is made out of five significant parts: channel press plate, pressure driven framework, channel press outline, channel plate move framework and electrical framework. The rule of the plate and edge channel press is moderately basic, initially, the water driven strain is applied to the plate and edge bunch, and the silt enters from the center and is appropriated between the channel fabrics. Because of the pressure of the plate and casing, the slime can’t flood and under the high tension of the screw and stomach siphons, the water in the ooze leaks out of the channel fabric and streams into the return pipe, while the mud cake is left in the cavity. A short time later the plate and edge dumps, the channel plates are pulled separated and the mud cake falls by gravity and is pulled away by a vehicle, so the channel press process is supposed to be the last interaction in the sewage treatment process. The rule is depicted in the video.
The plate and edge channel press is reasonable for suspensions with an enormous or almost incompressible channel buildup. Appropriate suspensions by and large have a solids grouping of 10% or less and a working tension of 0.3 to 0.6 MPa, with exceptional ones up to 3 MPa or higher. The filtration region can be expanded or diminished relying upon the quantity of plates and casings utilized. The plate and casing are generally square, with an internal side length of 320 to 2000 mm, an edge thickness of 16 to 80 mm and a filtration area of 1 to 1200 m2. The plates and casings are squeezed with manual twisting, electric winding and water driven strain. The plates and casings are made of wood, cast iron, cast steel, hardened steel, polypropylene and elastic.
2、Safety activity safeguards
1、When the channel press is working ordinarily, the administrator should not put his feet, hands or head into the channel plate of the channel press or notice the belt transport or the focal tank beneath from between the cuts of the channel plate that is pulled open. It is taboo to place devices on the pulling snare outline and the handle of the channel plate.
- Try not to press the switch when somebody is on the casing, rooftop or bar.
3、The water powered piece of the channel press should be introduced with an electric contact pressure measure.
- It is prohibited to wear high impact points or work shoeless, and it is taboo to place your head or hands into the channel plate during dumping.
- It is taboo to work the button with gloves and just utilize a wooden digging tool (bamboo edge) to empty the material.
6、Check whether the working buttons are adaptable and dependable and regardless of whether the unloader is synchronized before work.
7、Check whether there is any trash between the channel plates and regardless of whether there are kinks in the channel fabric before work, and tidy them up in time when found.
8、During the sifting system, notice the surge of filtrate, and when harm is found, record the number and fix or supplant the channel material on schedule.
9、Check whether the channel plate is disfigured or broken, and supplant it in time when found. When supplanting the channel plate, eliminate the filtrate ramble first.
10、Flush the channel fabric as per the guidelines to build the porousness of the channel material and work on the proficiency of the channel press.
11、Before halting, quit taking care of and dump every one of the materials in the channel press prior to halting, and stopping with materials is completely denied.
12、After the plate outline is released, one plate should be cleaned with a plastic digging tool after the slag has been released, and one more plate should be cleaned after the leftover slag has been released, and it is totally illegal not to clean the lingering slag.
13、After emptying the plate slag, when cleaning the plate casing and channel fabric, guarantee that the hole is clear, and don’t permit the buildup to adhere to the fixing surface or taking care of channel.
14、When stacking the plate, when the plate outline is continuing on the principle bar, it ought not be impacted or dropped, and the power ought to be equitably applied to forestall contacting the handle and harming the fixing surface.
15、Damaged channel material is viewed as supplanted on schedule. When introducing the channel fabric, it should be level and not collapsed to forestall harm and spillage of material when the plate outline is squeezed.
16、The destroyed plate and edge ought to be put away in a level spot to forestall twisting.
17、The fixing surface of the channel plate should be perfect and flaw free, and the channel plate ought to be vertical and slick with the primary bar, and ought not be one-sided in front or behind, any other way the squeezing activity ought not be begun.
18, dumping plate slag during the time spent head and appendages into the channel plate is totally denied.
19、Leakage of sloppy water and harmed channel material ought to be changed and washed on schedule, dried and stacked perfectly for brought together therapy.
20、Keep the channel material liberated from incorporations and kinks and keep the outer layer of the channel plate smooth and even.
- Investigation of normal shortcomings of the plate and edge channel press
1、Damage of the actual plate
The reasons for harm to the actual plate are.
1, when the muck is too thick or dry square abandoned, it will cause the blockage of the taking care of port, right now there is no medium between the channel plate just the tension of the water driven framework itself, as of now the actual plate is extremely simple to make harm due long time pressure.
2、If the stockpile is inadequate or the inventory contains inadmissible strong particles, it will likewise make the plate outline itself be harmed because of unreasonable strain.
3、If the stream outlet is impeded by solids or the stock valve or outlet valve is shut when beginning, the tension has no place to spill out to cause harm.
4、When the channel plate isn’t cleaned, now and again it will make the media spill out, when the spillage, the edge of the plate edge will be cleaned out a little channel, an enormous number of media spillage brought about by the tension would not ascent, mud be able to cake can not be framed.
Comparing to the investigating strategies.
1、Use nylon cleaning scrubber to eliminate the mud from the gulf
2, complete the cycle, diminish the volume of the channel plate
3、Check the channel fabric, clean the seepage port, really take a look at the power source, open the comparing valve and delivery the strain
4 、Clean the channel plate cautiously and fix it
2、Water drainage between the plate and casing
The principle explanations behind water drainage between the plate and edge are
1、Low water powered tension
2、Folded channel material and openings in the channel fabric
3, fixing surface with irregularities.
Water drainage between the plate and casing is somewhat easy to manage, as long as the relating expansion in water driven tension, substitution of the channel material or the utilization of nylon scrubber to eliminate the square on the fixing surface can be.
3、Unformed channel cake or lopsided channel cake
There are many justifications for why the channel cake can not be formed or lopsided, the stock of deficient or excessively slim, or the peculiarity of blockage can cause this peculiarity. For these disappointments to examine the causes exhaustively, and in the end track down the specific issue, and afterward the suggestive treatment to tackle the issue. The primary arrangements are: increment the stockpile, change the cycle, work on the inventory, clean the channel fabric or supplant the channel material, clean the blockage, clean the stockpile opening, clean the waste opening, clean or supplant the channel fabric, increment the tension or siphon power, low-pressure start, consistent strain supporting and different strategies.
4、Sluggish activity of channel plate or simple to fall
Now and then an excess of oil and stain on the directing china filter press machine manufacturers bar will likewise cause the channel plate to be delayed in real life and even tumble off. This time we should clean the aide pole on schedule and apply oil to guarantee its lubricity. One thing to note is that it is totally taboo to spread flimsy oil on the aide pole, in light of the fact that slender oil is not difficult to tumble off to make the lower side extremely elusive, staff working here for support is exceptionally simple to fall, causing individual injury mishaps.
5、Failure of the water powered framework
The water powered arrangement of the plate and casing channel press mostly gives pressure, when the oil hole An is loaded up with more oil, the cylinder moves to one side and presses the channel plate to close it. At the point when the oil cavity B is loaded up with more oil, the cylinder moves to one side, and the channel plate is slackened. Because of the accuracy of the production, water driven framework disappointments are uncommon and can be settled with routine support. All things considered, because of mileage, oil holes will happen after each year or so and the O-ring should be fixed and supplanted. Normal water powered disappointments incorporate inability to keep up with pressure and ill-advised development of the water powered chamber. Causes can not keep up with the strain of the primary reasons are oil spillage, O-ring wear and solenoid valve doesn’t work as expected, the normal treatment is to eliminate and actually take a look at the valve, supplant the O-ring, cleaning and really taking a look at the solenoid valve or supplant the solenoid valve. Water driven chamber impetus isn’t appropriate is clearly air is fixed in the inner, then, at that point, as long as the framework siphoning can be, by and large can be immediately settled.
6, channel cake and channel material from terrible
(1) check the liquidity or grouping of the channel material has not changed, for example, liquidity or focus isn’t typical, it is important to expand the filtration time, diminish the dampness content of the channel cake
2) Check whether the measurements is proper, change the dose;
(3) Check whether the limit and tension of the feed siphon are appropriate, in the event that not, go to lengths to change the filtration time and other handling measures;
(4) Filter fabric staying together, causing the mud cake can not be dumped regularly, the channel plate or pressure plate on the two sides of the lower part of the channel material integrated, the channel fabric and channel plate arrange, with the goal that the mud cake dumped without a hitch.
7、Insufficient filling of the channel chamber or void chamber
Deficient filling of the channel chamber or void chamber will prompt tension awkwardness on the two sides of the channel plate, and the strain distinction between the different sides will cause the channel plate to be annihilated, causing this issue is generally a channel blockage, the inner slop channel of the plate outline and the ooze pipeline of the stomach siphon ought to be checked, the normal blockage is a little piece of cloth or channel fabric collapsed to obstruct the hole, or the slime consistency is excessively enormous, and the pipeline is hindered because of no backflushing pipeline when the channel press is halted.
8、Folding of channel material
Mud cake joined to the channel material (deficient mud release), or inadequate pressure of the channel fabric suspension spring, will make the channel material crease, should clean the channel fabric, supplant the spring, and reestablish the channel fabric to a level state.
At the point when the channel material is harmed, the mud attacks the channel plate from the break and is released from the power source opening all things considered, making the filtrate turbid, when filtration can’t be completed, the channel fabric at the power source of the turbid fluid ought to be checked and fixed or supplanted with another channel fabric.
4、Repair of the channel plate
The rebuilding innovation of the channel plate is as per the following:
Following a couple of long periods of utilization, for reasons unknown, the channel plate is cleaned out at the corners for certain sections. When the gouges show up, they will grow quickly until they influence the arrangement of the channel cake. At first the channel cake turns out to be delicate, then, at that point, it transforms into a semi-ooze lastly the cake can’t be shaped. Because of the exceptional material of the channel plate, it is hard to fix and must be supplanted with another one, which brings about a maximum usage of extra parts. During this period, we attempted some fixing specialists, however the impact has not been great. As of late, the circumstance at long last pivoted when the oil surface fixing specialist was utilized all things being equal, and the preliminary impact was generally excellent, and the fixing impact was accomplished.
Explicit fix techniques are as per the following.
1, tidy up the section, releasing new surface to, accessible little saw edge, and so on tidy up
2, high contrast two fix specialist as indicated by the 1:1 proportion of the sending of good
3, the organization of good fix specialist covered ready, covered with a somewhat higher
4, immediately set the channel material, the channel plate pressed together, so the fix and channel fabric remain together, while crushing level scores
5、After pressing for a while, the glue will be normally shaped and never again change, when it very well may be utilized ordinarily.
5、Cost examination with other channel presses
On the off chance that the crude water to be dealt with is 2000m3/day and the sewage treatment plant delivering 8-10 t/d dry slime is moved into a mud-water blend with a strong substance of around 3% (there will be contrasts in suspensions in various enterprises and different treatment processes), it is around 300m3/day of mud-water combination; utilizing a rotator with a plan limit of 4-15m3/h, the production line cost is around 100,000/set. A one-meter belt channel press is something like 100,000, and it has a treatment limit of around 4 to 12m3/h. A 120m2 programmed pull plate type plate and casing channel press costs almost 100,000, and its handling limit is around 3 to 10m3/h.
a. Flocculant utilization
In the rotator, because of the huge radial power field, the fine muck can likewise be isolated from the water, so how much flocculant added is little, and the general dosing sum for blended ooze dewatering is around 1.2 kg/tds, the slime recuperation rate is over 95%, and the water content of the mud cake subsequent to dewatering is 65% to 80%; while the belt channel machine, to further develop the handling limit, the channel belt can’t be woven too thickly, and to keep the fine ooze from spilling out of the net, it is important to In request to keep the fine ooze from spilling out of the net, more flocculant is added to make the ooze structure bigger flocs, and the general dosing sum for blended slop dewatering is more prominent than 3 kg/tds, the ooze recuperation rate is around 90%, and the water content of the mud cake in the wake of dewatering is around 80%.
The measurements of the decanter rotator dewatering machine is significantly more conservative than that of the belt channel press, and the sub-atomic load of the medications utilized in the decanter axis dewatering machine is low and modest, while the sub-atomic load of the medications utilized in the belt channel press is high and costly. A one-meter belt channel press labors for eight hours per day with a measurement of four to five kilograms; a 355 decanter axis dewatering machine labors for eight hours per day with a dose of a few kilograms, contingent upon the slop, and the rotator can even accomplish better treatment results for some materials without adding drugs. For instance: paper making, fleece turning, acetylene gas slag, human stockpiling fertilizer, mine following sand and other coarse particles handily accelerated materials, don’t require flocculants, while the belt channel press can not; this extraordinarily diminishes the dosing and handling costs.
b. Power and water utilization
The power utilization of the rotator being used is three to four kilowatts higher than that of the belt type machine, which is 30 yuan more each day as indicated by the computation of eight hours of work each day. The axis, then again, doesn’t need water flushing during the whole dewatering process. Simply a modest quantity of water is utilized to wash the inward depression when closing down. A one-meter belt channel press, then again, expects sixty to seventy cubic meters of water each day for discharging of the channel belt. The discharge water is then gotten back to the sedimentation tank for reprocessing, which expands the expense by somewhere around 150 yuan each day at an expense of 2.5 yuan per cubic meter of water, while the discharge cost is much higher with regular water, which saves 120 yuan each day and no less than 40,000 yuan each year. The plate and edge channel press needs to clean the channel material subsequent to handling the slime, if not it will influence the handling impact and develop the handling time, which is tedious and difficult.
c. Work utilization
The decanter rotator has low work force, high mechanization, basic activity, and one individual can oversee 2 to 3 units simultaneously; the belt channel press has confounded activity and high specialized prerequisites for working laborers, for the most part 1 to 2 individuals oversee 1 to 2 units; the plate and casing channel press has basic activity yet high work power and helpless work space conditions, by and large 2 individuals oversee 1 to 2 units, and the treatment of working laborers requires high treatment. Assuming the estimation depends on 80 yuan for every individual each day, the decanter axis is 80 yuan each day, the belt channel press is 160 yuan each day, and the plate and casing channel press is 100 to 160 yuan each day.
3、Use and support cost
The decanter axis dewatering machine has not many wearing parts, just the V-belt and orientation will be harmed, for example, substitution is a couple hundred yuan; the belt channel press has many wearing parts, due to the qualities of open activity, the pivoting shaft, pinion wheels, course and channel belt are consumed by the sewage and running mileage, simple to harm, fix and substitution needs thousands or even huge number of yuan; the plate and casing channel press channel material will be broken, substitution additionally needs a few thousand yuan.