CN2168634Y - Solid-liquid separator - Google Patents

Abstract

The utility model relates to a solid-liquid separation machine, two pairs of outside the surrounding of sprocket that set up at the box both ends that the bottom was equipped with the filter screen have two drive chains to between two drive chains, the interval sets firmly can closely support the filter screen and scrape the scraper blade of sending the solid on the filter screen. The upper half part and the lower half part of the box body are bent along the flow direction of the wastewater, a large inclined section and a small inclined section with large and small included angles are formed between the upper half part and the lower half part of the box body and the wastewater ditch, and an idler wheel which correspondingly supports the transmission chain is pivoted at the bent part of the box body, so that the running path of the transmission chain is bent in parallel with the filter screen, the filtering efficiency is good, and the height of solid accumulation can be considered.

Description

The utility model relates to a solid-liquid separator, in particular to a solid-liquid separator with good filtration efficiency, and a scraper with an automatic adjustment effect, which can maintain a conflicting state with the filter screen so as to scrape off solids.

In order to seek a consensus on ecological and environmental protection, in order to reduce the pollution caused by livestock excrement flowing into rivers, the general breeding industry must install a solid-liquid separator to separate the solid components in the excrement. As shown in Figure 1, it is a conventional solid-liquid separator that is simply installed obliquely. It is mainly installed in the waste water ditch 11 along the direction of waste water flow. A rectangular box with openings at both ends and a filter 121 at the bottom 12. The bottom of the box body 12 is embedded in the waste water, and the solid components in the waste water flow are filtered out and blocked by the filter screen 121, and then two sets of driving and passive sprockets 13, 14 are placed between the two ends of the box body 12 to Two transmission chains 15 are revolving respectively, and the drive chain 13 is driven by the motor 16 to rotate the transmission chain 15. In addition, several scrapers 17 are arranged horizontally on the two transmission chains 15 so that they can rotate with the transmission chain 15. Along the filter screen 121, the filtered solids are continuously scraped up, pushed to the top and dropped into the collection box 18 for collection, so as to achieve the purpose of separation.

The structure in which each scraper 17 is fixed on the transmission chain 15 in the above-mentioned conventional solid-liquid separator is generally shown in FIG. A pair of receiving plates 153 are provided with a pair of round holes 154 for locking and fixing the scrapers 17 with round holes 171 in pairs at both ends. Therefore, after the scraper 17 has been in operation for a period of time, the situation that the scraper 17 and the filter screen 121 cannot be closely adhered will be caused by the wear of the end, resulting in the inability to scrape off the solids accumulated on the screen surface, causing the filter screen 121 to be blocked, causing the filter screen 121 to block. Filtration efficiency is greatly reduced, which is a point to be improved in the design of the scraper 17 of the solid-liquid separator.

In addition, in the operation of the conventional simple inclined solid-liquid separator, the upward slope angle will affect the solid accumulation height, because the solid filtered out by the filter screen 121 in Fig. 1 is pushed to the top by the scraper 17 and falls from a high place. into the collection box 18, so the inclination angle should not be too small (usually more than about 45°), that is, the greater the angle of the upward inclination, the higher the height, and the higher the height at which solids can be accumulated. However, when the upward slope angle is larger, the filtering effect of the filter screen 121 is negatively affected, because the larger the upward slope angle, the smaller the filter area of the filter screen 121 in contact with the waste water in the waste water ditch 11, and the lower the filtration efficiency .

The purpose of the utility model is to provide a solid-liquid separator which takes into account both the filtering effect and the solid accumulation height.

The utility model is characterized in that: the upper and lower parts of the box of the solid-liquid separator follow the flow direction of the waste water, forming a bent shape of a large inclined section and a small inclined section with large and small angles between the solid-liquid separator and the waste water ditch, In addition, an idler wheel corresponding to the transmission chain is pivoted at the bending part of the box body, so that the running path of the transmission chain is bent parallel to the filter screen, and the solid accumulation height can be taken into account while having better filtration efficiency.

The utility model is described in detail below by preferred embodiment and accompanying drawing, in the accompanying drawing:

Figure 1 is a schematic diagram of the structure of a conventional simple oblique solid-liquid separator.

Figure 2 is a three-dimensional exploded schematic diagram of the assembly of the scraper and the transmission chain in the conventional simple inclined solid-liquid separator.

Fig. 3 is a schematic structural view of the solid-liquid separator of the first embodiment of the present invention.

FIG. 4 is a three-dimensional exploded schematic view of the scraper disposed on the transmission chain in the first embodiment of the present invention.

FIG. 5 is a schematic diagram of the operation of the scraper in the first embodiment of the present invention.

FIG. 6 is a three-dimensional exploded schematic diagram of the scraper disposed on the transmission chain in the second embodiment of the present invention.

Please refer to Fig. 3 first, the solid-liquid separator of the first embodiment of the utility model includes a box body 2, and the upper and lower parts of the box body 2 are arranged to follow the waste water flow direction to form large and small slopes with large and small inclination angles. Inclined sections 21, 22, when installed, the bottom end of the small inclined section 22 can be embedded in the waste water ditch 3, and the near upper end of the large inclined section 21 is fixed on the upper end of the pivotable pivot seat 24 at the top of the bracket 23 to obtain support, so that the package The filter screen 25 covering the bottom surface of the small inclined section 22 of the casing 2 is embedded in the waste water ditch 3 . A pair of main and driven sprockets 261, 262 are pivoted at the top and bottom of the box body 2, and a pair of transmission chains 27 are wound around, and a pair of idlers corresponding to the transmission chain 27 are pivotally provided at the bending position of the box body 2. Wheel 263 is to stretch the bottom end of transmission chain 27 downwards so that its running path is parallel to the bending pattern of filter screen 25, so as to drive intervals across many scrapers 28 between two transmission chains 27 to circulate. Each scraper 28 closely contacts the filter screen 25, and the filtered solids are scraped up and gradually sent to the top of the casing 2, so that the solids fall outward and accumulate in the pre-built accumulation tank 29, thereby achieving The purpose of solid and liquid separation in wastewater.

When the solid-liquid separator in this embodiment is in operation, the waste water is received by the small inclined section 22 with a small inclined angle (the angle with the waste water ditch 3 is about 10°-20°) in the lower half of the box body 2, so the small The contact area between the filter screen 25 at the bottom of the inclined section 22 and the waste water is obviously larger than that of the above-mentioned conventional monoclinic type, so the filter area can be effectively increased, and the filtration efficiency is also relatively improved. When the waste water height is increased, the submerged area of the filter screen 25 (that is, the filter area) will be significantly enlarged due to the water lift, and the amount of filtered water can be increased with the increase of the waste water volume. Therefore, the filter screen 25 of the small inclined section 22 The rise of the waste water level significantly increases the filtration area, which is unmatched by previous solid-liquid separators. Again, the large inclination section 21 of the upper half of the box body 2 has a relatively large inclination angle (the angle between it and the waste water ditch 3 is about 40°-50°), so the scraped solid can also obtain the expected climbing height, and can In the case of better filtration efficiency, take into account the solid accumulation height.

Please refer to Fig. 4, the scraper 28 of the solid-liquid separator of the present embodiment is longitudinally provided with position adjustment holes 281 of appropriate length, and in installation, each position adjustment hole 281 corresponds to the chain plates 272 on both sides of the predetermined chain link 271 in the transmission chain 27 The round holes 274 provided on the receiving plates 273 arranged in pairs at intervals, in conjunction with the locking of the screw element 4, can lock the integral scraper 28 up and down in the groove-shaped space separated between each pair of receiving plates 273. inside the space. That is to say, after locking, each threaded element 4 is positioned on each pair of receiving plates 273 so as not to move up and down, so as to limit the movement of the scraper 28 up and down within the length range of the adjustment hole 281 .

Please refer to Fig. 5 again, when the drive chain 27 is running, the scraper 28 is inclined downward with the receiving plate 273 and scrapes against the filter screen 25 of the large and small inclined sections 21, 22 shown in Fig. 3, the scraper 28 is borrowed The downward gravity of itself is tightly pressed against the filter screen 25 with the end, and when the upper scraper 28 is installed and locked by the screw element 4, it is in a non-tightened locking state, and the adjustment hole 281 is reserved. The length that can be moved downwards, that is, when the overall scraper 28 is against the filter screen 25, it has a tendency to automatically sag and adjust downward displacement by gravity, so that even if the scraper 28 has a significant degree of wear (the length of allowable wear) , as far as this figure is concerned, it is the length that the position adjustment hole 281 can move downwards), and the scraper 28 can still be used to automatically adjust the position downwards, and maintain a tight state with the filter screen 25, so that the scraper 28 can follow the transmission chain 27 during operation, can under the state that maintains tightly with each part filter screen 25, scrape off the filtered solid on the filter screen 25, therefore can make each part filter screen 25 keep good filtering effect.

In addition, in this embodiment, the transmission chain 27 with the convex receiving plate 273 used to drive the scraper 28 to operate in Fig. 4 is different from the conventional chain in order to be more suitable for operation in waste water, and generally does not need to be used during assembly. With any tool, a plurality of chain links 271 can be pivotally connected in series with the connecting shafts 275 and hollow transverse tubes 276 at the corresponding ends to form an annular shape of predetermined length, so that the pivoting angle of the two chain links 271 in series is farther away in operation. The vertical angle (as shown by the imaginary line in Figure 4) is smaller than the vertical angle of installation to prevent it from falling off. And this type is used for installing scraper 28, and has the structure that does not need the transmission chain of any tool when being suitable for carrying out operation and assembling in waste water, can alternatively drive chain 6 as shown in Figure 6 (second embodiment), Equally, each chain link 61 is provided with a receiving plate 65 for locking scraper 28 on two chain plates 62, and two chain plates 62 one ends form width narrower and A hollow horizontal tube 63 with an embedding groove 631 is opened at the top, and the other end is gradually narrowed so that the width is slightly smaller than the width of the embedding groove 631, and a connecting shaft 64 is connected at the end, and the diameter of the connecting shaft 64 is slightly smaller than the inner diameter of the horizontal pipe 63. Two or two chain links 61 are vertically embedded with the connecting shaft 64 at the adjacent end and the transverse tube 63 and then pivoted downwards.

In view of the above, the structure and features of the utility model can indeed provide a solid-liquid separator that takes into account both the filtration efficiency and the solid accumulation height, and the scraper has an automatic adjustment effect in operation. When the transmission chain is running, even if there is wear and tear It can maintain a tight contact with the bottom filter to facilitate scraping off solids.

Claims (2)

1. A solid-liquid separator, including two pairs of sprockets installed at both ends of the box body with the lower end embedded in the waste water ditch and the filter screen installed at the bottom; the two pairs of sprockets are surrounded by two transmission wheels. chain, and between the two transmission chains, a scraper for scraping solids on the filter is fixed at intervals; it is characterized in that: The upper and lower parts of the box follow the waste water flow direction, forming a bent shape with a large and small angle between the waste water ditch and the large inclined section and the small inclined section, and there is a corresponding pivot at the box bending. Support the idler wheel of the transmission chain, so that the running path of the transmission chain is bent parallel to the filter screen. 2. The solid-liquid separator according to claim 1, characterized in that: two ends of the scraper are longitudinally provided with adjustment holes.

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