Anti-adhesion filter hopper and filter disc device
阅读说明：本技术 一种抗粘滤斗及滤盘装置 (Anti-adhesion filter hopper and filter disc device ) 是由 陈子阳 于 2019-12-24 设计创作，主要内容包括：本发明涉及一种抗粘滤斗及滤盘装置,包括密封条压紧机构,金属滤斗,非金属防粘滤斗,滤网,格栅,定位杆,小套管,大套管；还包括密封条压紧装置,密封条。所述密封条压紧机构在金属滤斗和非金属防粘滤斗上方交接处,所述非金属防粘滤斗贴合在金属滤斗上,所述滤网覆盖在格栅上方,所述格栅下方通过固定连接方式装有若干个定位杆,所述小套管套在定位杆上,所述大套管套在滤斗下部接管的内表面。与现有技术相比,这样使得过滤设备在过滤某些高粘度、易结垢介质时的适应性增强,从而使设备的清理周期大大延长。(The invention relates to an anti-sticking filter hopper and a filter disc device, which comprise a sealing strip pressing mechanism, a metal filter hopper, a non-metal anti-sticking filter hopper, a filter screen, a grid, a positioning rod, a small sleeve and a large sleeve; the sealing strip pressing device and the sealing strip are further included. The sealing strip hold-down mechanism is in handing-over department above metal filter hopper and the nonmetal antiseized filter hopper, the laminating of nonmetal antiseized filter hopper is on metal filter hopper, the filter screen covers in the grid top, a plurality of locating lever is equipped with through fixed connection mode in the grid below, little sleeve pipe overlaps on the locating lever, big sleeve pipe overlaps the internal surface of taking over in filter hopper lower part. Compared with the prior art, the method has the advantages that the adaptability of the filtering equipment in filtering certain high-viscosity and easily-scaling media is enhanced, and the cleaning period of the equipment is greatly prolonged.)
1. An anti-sticking filter hopper and a filter disc device comprise a sealing strip pressing mechanism (1), a metal filter hopper (2), a non-metal anti-sticking filter hopper (3), a filter screen (4), a grating (5), a positioning rod (6), a small sleeve (7) and a large sleeve (8); the method is characterized in that: sealing strip hold-down mechanism (1) is in metal filter hopper (2) and the antiseized filter hopper (3) top handing-over department of nonmetal, the antiseized filter hopper (3) of nonmetal laminates on metal filter hopper (2), filter screen (4) are in grid (5) top, grid (5) below is equipped with a plurality of locating lever (6) through fixed connection, little sleeve pipe (7) cover is on locating lever (6), big sleeve pipe (8) cover is at the internal surface that the filter hopper lower part was taken over.
2. The anti-stick filter bowl and filter disc apparatus of claim 1, wherein: the fixed connection mode comprises spot welding, lock catches and clamping hooks.
3. The anti-stick filter bowl and filter disc apparatus of claim 1, wherein: the sealing strip pressing mechanism (1) comprises: a sealing strip pressing device (11) and a sealing strip (12).
4. The anti-stick filter bowl and filter disc apparatus of claim 1, wherein: the head of the positioning rod (6) is provided with an elastic ring.
5. An anti-stick filter bowl and filter disc apparatus as defined in claim 3 wherein: the sealing strip pressing device (11) locks the sealing strip (12) in a fixed connection mode.
6. The anti-adhesion filter hopper and filter side device of claim 3, wherein: the sealing strip (12) is made of a material comprising acid-resistant rubber and expansion F4.
7. The anti-adhesion filter hopper and filter side device according to claim 5, wherein: the fixed connection mode comprises bolts and spot welding.
8. The anti-stick filter bowl and filter disc apparatus of claim 1, wherein: the nonmetal anti-sticking filter hopper (3), the small sleeve (7) and the large sleeve (8) can be prefabricated and molded by materials with slightly lower surface energy.
9. The anti-stick filter bowl and filter disc apparatus of claim 8, wherein: materials with slightly lower surface energy include acid-resistant rubber, PTFE, PVDF, anti-stick ceramics.
10. An anti-stick filter bowl and filter disc apparatus as defined in claim 3 wherein: the sealing strip pressing device (11) can be in various different structural types.
11. The anti-stick filter bowl and filter disc apparatus of claim 10, wherein: the structural forms comprise a wedge-shaped block pressing mode, a top pressing type pressing mode, an embedded round bar pressing mode and a reed type pressing mode.
Technical Field
The invention relates to the technical field of filter hopper surface anti-adhesion, in particular to an anti-adhesion filter hopper and a filter disc device.
Background
The filter chambers of many filter devices, such as flat-disc filters, tilting-disc filters, rubber belt filters, etc., are designed in the form of filter hoppers, primarily for collecting the filtrate. The filter hopper, particularly a large-size filter hopper, is made of metal materials due to the influence of factors such as mechanical strength, manufacturing difficulty and the like.
Because the surface energy of the metal material which is not subjected to surface treatment is relatively high, when the metal material meets certain working conditions of high viscosity and easy scaling, the material is easy to form adhesion on the surface of the filter hopper, and the cavity inside the filter hopper is smaller and smaller along with the lapse of time, so that the flow flux of the filtrate is reduced, and the use effect of the filter is poorer and poorer.
The following are currently conventional solutions: 1. the metal surface is polished, but the anti-sticking effect is not ideal due to the existence of microscopic pores on the surface. 2. Various anti-sticking coatings such as F30, nano hydrophobic materials and the like are sprayed, but the thickness of the coating is often less than 0.1mm, and the coating is easily washed away by solid particles in filtrate to lose the anti-sticking effect. 3. The surface is sprayed with plastic materials such as PVC, but the common plastic has poor temperature resistance and cannot be applied to certain high-temperature occasions.
Disclosure of Invention
The present invention is directed to an anti-adhesion filter bowl and filter disc apparatus to solve the above-mentioned problems.
In order to achieve the purpose, the invention provides the following technical scheme: an anti-stick bowl and disc assembly comprising: the sealing strip pressing mechanism, the metal filter hopper, the non-metal anti-sticking filter hopper, the filter screen, the grating, the positioning rod, the small sleeve and the large sleeve; further comprising: sealing strip closing device, sealing strip. Sealing strip hold-down mechanism is in metal filter hopper and the antiseized filter hopper handing-over department of nonmetal, the sealing strip is pressed in the antiseized filter hopper port department of nonmetal, sealing strip closing device compresses tightly the sealing strip through the fixed connection mode, the antiseized laminating of filter hopper of nonmetal is on the metal filter hopper, the filter screen is in the grid top, a plurality of locating lever is equipped with to the grid below, little sleeve pipe cover is on the locating lever, big sleeve pipe cover is at the internal surface that the filter hopper lower part was taken over.
The sealing strip pressing device can press the sealing strip in a fixed connection mode and comprises a bolt and a spot welding device.
The sealing strip pressing mechanism presses the non-metal anti-sticking filter hopper, so that filtrate is not directly contacted with the bottom of the metal filter hopper.
Wherein the sealing strip prevents the slurry from directly contacting the bottom of the metal filter hopper as much as possible
The structure form of the sealing strip pressing mechanism comprises a wedge block pressing mode, a top pressing mode, an embedded round bar pressing mode and a reed type pressing mode.
Wherein the sealing strip material may comprise acid resistant rubber, expansion F4.
The nonmetal anti-sticking filter hopper can reduce the surface energy of the inner surface of the metal filter hopper base body, and can achieve the purpose of better anti-sticking.
Wherein, the nonmetal anti-sticking filter hopper can be prefabricated and molded by materials with slightly lower surface energy.
Wherein the slightly lower surface energy material comprises acid-resistant rubber, PTFE, PVDF, and anti-sticking ceramic.
The sealing strip and the sealing strip pressing device are pre-tightened to prevent filtrate from leaking to the surface of the metal filter hopper from the joint surface of the filter hoppers made of two materials to generate adhesion, accumulation and lifting phenomena.
The lower part of the grating is provided with a plurality of positioning rods and sleeved with small sleeves to play a certain reinforcing role on the nonmetal filter hopper, overcome the defects of low mechanical strength and easy deformation of the nonmetal filter hopper and keep the seal between the metal filter hopper and the nonmetal anti-sticking filter hopper.
Wherein, the head of the locating rod is provided with an elastic ring.
Wherein, the locating lever can be connected on the grid through fixed connection mode, including spot welding, hasp, pothook.
Wherein, little sleeve pipe can be made by the material that surface energy is slightly low, including acidproof rubber, PTFE, PVDF to play and reduce the locating lever surface adhesion phenomenon.
Wherein, the large sleeve is sleeved on the inner surface of the connecting pipe at the lower part of the filter hopper.
The large sleeve can be made of materials with slightly low surface energy, including acid-resistant rubber, PTFE and PVDF, so that the phenomenon of adhesion of the inner surface of the connecting pipe at the lower part of the filter hopper is reduced.
Compared with the prior art, the invention has the following beneficial effects:
1. the technical scheme provided by the invention adopts the non-metal anti-sticking filter hopper, which can effectively reduce the surface energy of the metal filter hopper and achieve the ideal anti-sticking purpose, thereby prolonging the cleaning period of the filter hopper.
2. The technical scheme provided by the invention adopts the non-metal anti-sticking filter hopper which is prefabricated and formed by low surface energy materials such as acid-resistant rubber, PTFE (polytetrafluoroethylene), PVDF (polyvinylidene fluoride) and the like, has a certain thickness, is higher in reliability than a process for spraying an anti-sticking non-metal coating, and is more resistant to scouring of solid particles in filtrate.
3. The technical scheme provided by the invention adopts the nonmetal anti-sticking filter hopper prefabricated and formed by low surface energy materials such as acid-resistant rubber, PTFE, PVDF and the like, and compared with a plastic spraying process, the process has higher temperature resistance, is less prone to foaming, thermal deformation and warping, and can keep the anti-sticking effect for a long time.
4. The technical scheme provided by the invention adopts the nonmetal anti-sticking filter hopper which is prefabricated and formed by low surface energy materials such as acid-resistant rubber, PTFE, PVDF and the like, and the materials are relatively isolated from the metal filter hopper after being compressed by the sealing strip, so that the direct corrosion and abrasion of the surface of the metal filter hopper are reduced to a certain extent, the designed thickness of the metal filter hopper can be properly reduced, and the service life of the metal filter hopper is prolonged.
5. The technical scheme provided by the invention designs the non-metal anti-sticking filter hopper into an assembled structure, the filter hopper can be replaced at any time after being abraded after being used for a period of time, and the sealing strip compression structure design also enables the disassembly and the assembly to be very easy.
Drawings
FIG. 1 is a diagram of an integrated hopper assembly of the present invention;
FIG. 2 is a view of a sealing strip pressing mechanism according to the present invention;
FIG. 3 is a view showing a wedge-shaped block pressing manner of the sealing strip pressing mechanism of the present invention;
FIG. 4 is a top pressing type pressing mode diagram of the sealing strip pressing mechanism of the invention;
FIG. 5 is a view showing the pressing manner of the embedded round bar of the sealing strip pressing mechanism of the present invention;
FIG. 6 is a reed type pressing mode diagram of the sealing strip pressing mechanism of the present invention;
in FIGS. 1-2: 1-a sealing strip pressing mechanism; 2-a metal filter funnel; 3-nonmetal anti-sticking filter hopper; 4-filtering with a filter screen; 5-grating; 6-positioning a rod; 7-small sleeve; 8-large sleeve; 11-a sealing strip pressing device; 12-sealing strip.
Detailed Description
So that the manner in which the features and aspects of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.
Referring to fig. 1, an anti-stick bowl and disc assembly comprises: the sealing strip pressing mechanism comprises a sealing strip pressing mechanism 1, a
The filtrate is filtered by a
The sealing strip pressing mechanism 1 is used for pressing the
The sealing
The edge of the non-metal
The sealing
Wherein the
Wherein, a plurality of locating levers 6 and cover have little sleeve pipe 7 are equipped with to grid 5 below to play certain reinforcing action to nonmetal
Wherein, the locating rod 6 can be connected on the grid 5 through a fixed connection mode, including spot welding, hasp, pothook.
Wherein, locating lever 6 is used for preventing that nonmetal
Wherein, the head of the positioning rod 6 is provided with an elastic ring.
Wherein, little sleeve pipe 7 can be made by the material that surface energy is slightly low, including acidproof rubber, PTFE, PVDF to play and reduce the 6 surface adhesion phenomena of locating lever.
Wherein, the large sleeve 8 is sleeved on the inner surface of the connecting pipe at the lower part of the filter hopper.
Wherein, the large sleeve 8 can be made of materials with slightly lower surface energy, including acid-resistant rubber, PTFE and PVDF, so as to reduce the phenomenon of adhesion of the inner surface of the connecting pipe at the lower part of the filter funnel.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
- 上一篇：一种医用注射器针头装配设备
- 下一篇：具有操作装置的过滤器滤芯