Summary of the invention
One of object of the present invention is to provide the discharge method of the scalable circular slab filter press of a kind of high pressure.
The present invention's technical scheme that achieves the above object is as follows:
The discharge method of the scalable circular slab filter press of high pressure, comprises the following steps:
1. discharging is prepared: open in the press filtration chamber of the scalable circular slab filter press of high pressure;
2. accurately locate: shedding mechanism stretches in the press filtration chamber of opening, gradually near the circular slab that is covered with filter cake, in the time that shedding mechanism and described circular slab are pasting, the force checking device of shedding mechanism detects force signal, in the time that the value of force signal reaches setting value, microcomputerized control chip is made instruction, makes to regulate the mechanism of described shedding mechanism position to decommission, thereby completes accurate location;
3. upper and lower scraper: after having located, the initial gap place of the lifting wing of shedding mechanism between circular slab and filter cake inserts, and along with scraping action under lifting wing, filter cake part departs from described circular slab; Under simultaneous lifting wing, scrape completing of action, the location of also having realized the revolving scraper of shedding mechanism completes;
4. rotary scraping: revolving scraper rotates, the remaining filter cake in circular slab surface is by scraped clean.
Utilize machinery to carry out the direct scraper method of having of discharging and varicose rapping method in this area, directly scraper method is only applicable to filter cake and originates in dull and stereotyped situation, and the scalable circular slab cake of filter-press of high pressure fecund is in tool chamber plate, and tool chamber plate has circular protrusion near its edge, because of the inhibition of circular protrusion, directly scraper method inapplicable; If by varicose rapping method, the structure of scalable high pressure circular slab filter press must be transformed, this means to suspend for enterprise produces, and has also increased extra spending.Therefore, how solve the problem of quickly discharging material in the scalable circular slab filter press of high pressure field, become this area and need badly a difficult problem for solution.And the cutting mode of " first perching knife straight shovel, the rotation of rear scraper are scraped " that the present invention proposes becomes the beacon light that solves an above-mentioned difficult problem in good time.
In technique scheme of the present invention, shedding mechanism needs ceaselessly between the filter chamber of opening, to pass in and out, and namely send repeatedly cutter, returns sword, the efficiency that is determining discharging consuming time of sending cutter to return sword.In technique scheme of the present invention, particularly the transition and linkage of upper and lower scraper and rotary scraping, especially seems efficient.Reach the object of " send two reach ", the upper and lower action of scraper and the set-up procedure of rotary scraping realize coupling.Under lifting wing, scrape when work, also completed the location to revolving scraper, greatly improved production efficiency.
In technique scheme of the present invention, circular slab is the description of carrying out from shaped angles, if from structure point, can be divided into dull and stereotyped and tool chamber plate, and dull and stereotyped and tool chamber plate is all circular, all can be circular slab.Two adjacent circular slabs must have one flat plate and a tool chamber plate, and therefore, two adjacent circular slabs form a press filtration chamber when closed.
In technique scheme of the present invention, when filter cake is in the time that circular slab is not processed, gap together with having between the edge of filter cake and circular slab, in the time inserting from this gap with scoop, filter cake is the most easily by complete unloading; And this gap is called as initial gap.Because when filter cake is in the process being removed, because edge is constantly changed, its gap is also in continuous variation; So the gap having when discharging original state is called as initial gap.
As technique scheme preferably, when upper and lower scraper step completes, lifting wing moves to limit position; When described lifting wing is during in described limit position, the radial location of described revolving scraper in described circular slab; The length of described revolving scraper is not more than the radius of described circular slab.
In technique scheme of the present invention, circular slab can be that flat board can be also tool chamber plate, and in the time that circular slab is tool chamber plate, the radius of circular slab does not comprise the circular protrusion of its edge; The length of revolving scraper refers to the effectively length of section of revolving scraper simultaneously, from accompanying drawing, we can find out, revolving scraper is in its junction, to extend to both direction, we are defined as effective section the part that wherein length is grown, the existence of another section bonding strength, also has certain balanced action except guaranteeing when rotated.
The second object of the present invention is to provide the automatic scraping mechanism that is applicable to above-mentioned discharge method.
The technical scheme that the present invention realizes the second object is as follows:
Be applicable to the automatic scraping mechanism of above-mentioned discharge method, comprise scissors scraper assembly and rotary scraping assembly;
Described scissors scraper assembly comprises a pair of scissor lift sheet being hinged, and for the pin joint of the scissor lift sheet that is hinged provides the stator of stopper slot, a pair of brace, controls expansion link and a pair of lifting wing of the lifting of described scissor lift sheet; Described scissor lift sheet has the mouth of cutting and cuts handle because of hinged, and one end of described brace is hinged on described stator, forms the starting point of scissor lift, described in the other end is hinged on, cuts on handle; Described in being arranged at, described lifting wing cuts mouth; Described lifting wing, under the drive of described expansion link, relies on the upper and lower scraper of scissors movement of described scissor lift sheet;
Described rotary scraping assembly comprises electric rotating machine and is arranged at the revolving scraper on the output shaft of described electric rotating machine; Described revolving scraper is rotary scraping under described electric rotating machine drives.
The present invention has creatively proposed the cutting mode of " first perching knife straight shovel, the rotation of rear scraper are scraped ", thereby scissors scraper assembly and rotary scraping assembly are combined, jointly complete the discharging to the scalable circular slab filter press of high pressure, there is obvious technique effect.In the present invention, the scraper being connected with scissor lift sheet is equivalent to perching knife, can make filter cake depart from tool chamber plate, and filter cake residual on the plate of tool chamber can be scraped to the greatest extent by the rotary moveable of revolving scraper.Described rotation is that the hole at Yi Juqiangban center is the center of circle, does and rotates in the press filtration chamber in tool plate chamber take the blade of revolving scraper as radius, scalable high pressure circular slab cake of filter-press can be scraped to the greatest extent by this rotation.
As technique scheme preferably, the hinged place of cutting mouth or described scissor lift sheet described in the end of described expansion link is fixed on.
As technique scheme preferably, described expansion link is cylinder.
As technique scheme preferably, described rotary scraping assembly also comprises holddown spring; Described holddown spring is arranged between described revolving scraper and described electric rotating machine body, can make revolving scraper move about along the output shaft of electric rotating machine.
As technique scheme preferably, little scraper, hair and bolt that described lifting wing comprises large scraper, is hinged with described large scraper;
Described in being fixed on, described large scraper cuts mouth;
Described bolt connects described large scraper and described little scraper, and described hair is put in the position of the sheathed packing ring of described bolt, thereby realizes flexibly connecting between described large scraper and described little scraper.
As technique scheme preferably, described large scraper and described little scraper pass through gemel connection, the knife face of described little scraper is isosceles trapezoid, and the working end of described little scraper and link form the upper bottom of described isosceles trapezoid, and described working end is narrower than described link.
In technique scheme of the present invention, the working end of little scraper refers to that little scraper is for contacting one side of filter cake, and the link of little scraper is one side that little scraper connects with large scraper.
As technique scheme preferably, also comprise force checking device, described little scraper is stressed because touching, described force checking device is for detection of the size of this power.
The 3rd object of the present invention is to provide a kind of scraper automatically.
The technical scheme that the present invention realizes the 3rd object is as follows:
There is the automatic scraper of above-mentioned automatic scraping mechanism.
In sum, the present invention has following technique effect:
1. the cutting mode of the present invention proposes " first perching knife straight shovel, the rotation of rear scraper are scraped ", has produced far-reaching influence to the discharging of the scalable circular slab filter press of high pressure, has changed the behindhand type that can only rely at present artificial blanking;
2. not only discharging is clean for automatic material blanking mechanism provided by the invention, and efficiency is high, has and send two functions that reach in the time of blanking;
3. between big or small scraper of the present invention, be also provided with hair, can realize scraper and contact with the soft of circular slab, be beneficial to the protection of the filter cloth to circular slab surface.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further detailed.
This specific embodiment is only explanation of the invention, is not limitation of the present invention.Any modification that those skilled in the art have done after having read description of the present invention, as long as in the protection domain of claim, all will be subject to the protection of Patent Law.
As shown in Figure 3-4, the discharge method of the scalable circular slab filter press of high pressure, comprises the following steps:
1. discharging is prepared: open in the press filtration chamber of the scalable circular slab filter press of high pressure, and intact filter cake 11 originates in tool chamber plate (circular slab 1);
2. accurately locate: shedding mechanism stretches in the press filtration chamber of opening, gradually near the tool chamber plate (circular slab 1) that is covered with filter cake, in the time that is pasting in shedding mechanism and described tool chamber plate (circular slab 1), the force checking device of shedding mechanism detects force signal, in the time that the value of force signal reaches setting value, microcomputerized control chip is made instruction, makes to regulate the mechanism of described shedding mechanism position to decommission, thereby completes accurate location;
3. upper and lower scraper: after having located, the initial gap place of the little scraper 62 of shedding mechanism between tool chamber plate (circular slab 1) and filter cake inserts, and along with scraping action under little scraper 62, the large portion of filter cake departs from described tool chamber plate (circular slab 1); Under the little scraper 62 of simultaneous, scrape completing of action, the location of also having realized revolving scraper 8 completes;
4. rotary scraping: revolving scraper 8 rotates, the remaining cake 12 on tool chamber plate (circular slab 1) surface is by scraped clean.
When upper and lower scraper step completes, little scraper 62 moves to limit position; When described little scraper 62 is during in described limit position, the radial location of described revolving scraper in tool chamber plate (circular slab 1); The length of described revolving scraper 8 is not more than the radius of described tool chamber plate (circular slab 1).
The direction that shown in Fig. 3 arrow, direction is upper and lower scraper; The direction that shown in Fig. 4 arrow, direction is rotary scraping.
As shown in Figure 1-2, scraping mechanism, comprises scissors scraper assembly and rotary scraping assembly automatically; Described scissors scraper assembly comprises a pair of scissor lift sheet being hinged, and for the pin joint of the scissor lift sheet that is hinged provides the stator 3 of stopper slot, a pair of brace 4, controls expansion link 5 and a pair of lifting wing of the lifting of described scissor lift sheet; Described scissor lift sheet has the mouth of cutting 21 and cuts handle 22 because of hinged, and one end of described brace 4 is hinged on described stator 3, forms the starting point of scissor lift, described in the other end is hinged on, cuts on handle 22; Described in being arranged at, described lifting wing cuts mouth 21; Described lifting wing, under the drive of described expansion link 5, relies on the upper and lower scraper of scissors movement of described scissor lift sheet; Described rotary scraping assembly comprises electric rotating machine 7 and is arranged at the revolving scraper 8 on the output shaft of described electric rotating machine 7; Described revolving scraper 8 is rotary scraping under described electric rotating machine 7 drives.Described in being fixed on, the end of described expansion link 5 cuts the hinged place of mouth 21 or described scissor lift sheet.Described expansion link 5 is cylinder.Described rotary scraping assembly also comprises holddown spring 9; Described holddown spring 9 is arranged between described revolving scraper 8 and described electric rotating machine 7 bodies, can make revolving scraper 8 move about along the output shaft of electric rotating machine 7.Little scraper 62, hair 63 and bolt 64 that described lifting wing comprises large scraper 61, is hinged with described large scraper 61; Described in being fixed on, described large scraper 61 cuts mouth 21; Described bolt 64 connects described large scraper 61 and described little scraper 62, and described hair 63 is put in the position of described bolt 64 sheathed packing rings, thereby realizes flexibly connecting between described large scraper 61 and described little scraper 62.Described large scraper 61 is connected by hinge 65 with described little scraper 62, and the knife face of described little scraper 62 is isosceles trapezoid, and the working end of described little scraper 62 and link form the upper bottom of described isosceles trapezoid, and described working end is narrower than described link.Also comprise force checking device 10, described little scraper 62 is stressed because touching, and described force checking device 10 is for detection of the size of this power.
A kind of automatic scraper with above-mentioned automatic scraping mechanism.