CN210457906U - Automatic change area pressure formula hydroextractor - Google Patents

Abstract

The utility model relates to the field of dewaterers, in particular to an automatic belt pressure type dewaterer, which comprises a screw conveyer, a concentration conveying device and a squeezing device, wherein sludge is transmitted to the squeezing device by a water filtering conveying belt, the sludge is preliminarily pre-pressed by a pressure filtering layer on the squeezing device, part of sewage in the sludge is squeezed out, the sludge enters the squeezing layer and then flows downwards to the lower edges of a lower squeezing roller and an upper squeezing roller to drip out under the action of the transverse arrangement of the lower squeezing roller and the upper squeezing roller of the squeezing layer after entering the upper conveying belt and the lower conveying belt, the phenomenon that the water squeezed out by the upper squeezing roller drips on the lower squeezing roller below to influence the squeezing effect can be avoided, meanwhile, the edge of each lower squeezing roller is positioned in the range of the radius of the adjacent upper squeezing roller, the position relation can increase the squeezing area of the squeezing layer formed between the lower squeezing roller and the upper squeezing roller, is beneficial to improving the sludge squeezing effect, thereby improving the dehydration rate of the squeezed sludge.

Description

Automatic change area pressure formula hydroextractor

Technical Field

The utility model relates to a hydroextractor field especially indicates an automatic belt pressure formula hydroextractor.

Background

The sludge is a necessary product after sewage treatment in sewage treatment plants and sewage stations, a dehydrator is required to be used when the sludge is treated, and the dehydrator is used for pressurizing and dehydrating the sludge with high water content generated in the sewage treatment process to form a mud cake with low water content, so that conditions are provided for the subsequent treatment of the sludge. However, the conventional belt sludge dewatering machine has a low squeezing dewatering effect, so that the water content of the output mud cake is high, subsequent treatment is influenced, and when the sludge directly enters a squeezing part, the squeezed water easily drops into the sludge which is being squeezed below, and the water content of the subsequently squeezed mud cake is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic change belt pressure formula hydroextractor to overcome prior art belt sludge dewaterer's the dehydration effect that squeezes is lower, and the mud cake moisture content that leads to the output is higher, influences subsequent processing, and when mud directly got into the portion of squeezing, its moisture content that squeezes out dropped easily in the mud that the below is squeezing, and then influences the problem of the moisture content of the mud cake that follow-up squeezing out.

The utility model adopts the following technical scheme: the utility model provides an automatic change area pressure formula hydroextractor, is including agitator tank 1, auger delivery ware 2, concentrated conveyor 3 and squeeze device 4, agitator tank 1 is installed in the pan feeding mouth department of auger delivery ware 2, auger delivery ware 2 is installed and is served in one of concentrated conveyor 3, be equipped with drainage conveyer belt 31 on the concentrated conveyor 3, be equipped with hole, its characterized in that on the drainage conveyer belt 31: the squeezing device 4 comprises an upper conveying belt 41 and a lower conveying belt 42, the upper conveying belt 41 and the lower conveying belt 42 are both provided with holes, a filter pressing layer 43 and a squeezing layer 44 for squeezing sludge are arranged between the upper conveying belt 41 and the lower conveying belt 42, the filter pressing layer 43 is arc-shaped, the filter pressing layer 43 is subjected to filter pressing through a plurality of filter pressing rollers 431, the squeezing layer 44 is composed of a plurality of lower squeezing rollers 441 and a plurality of upper squeezing rollers 442, the squeezing layer 44 is in a continuous S shape, the plurality of lower squeezing rollers 441 and the plurality of upper squeezing rollers 442 are respectively transversely arranged, and the edge of each lower squeezing roller 441 is positioned in the radius range of the adjacent upper squeezing rollers 442; the concentration conveying device 3 and the squeezing device 4 are also provided with a spray pipe 5, the spray pipe 5 is a pipeline connected with a water source, a plurality of spray holes are formed in the pipeline corresponding to the conveying belt direction, and a water tank 41 used for collecting cleaned sewage is correspondingly arranged below the spray pipe 5 arranged on the upper conveying belt 41.

As a further improvement, the drive rollers 45 of the concentration conveying device 3 and the pressing device 4 are provided with scrapers 11 for scraping off sludge.

As a further improvement, a plurality of material blocking frames 32 are further arranged on the concentration conveying device 3, a plurality of material blocking plates 321 are arranged on the material blocking frames 32, and the material blocking plates 321 are V-shaped.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: after the sludge is conditioned, the conditioned sludge is conveyed by the water-filtering conveyer belt 31 of the concentration conveyer device 3 and is subjected to bidirectional dredging under the action of the material-blocking frame 32 so as to be conveyed to the press device 4, the sludge is conveyed to the press device 4 by the water-filtering conveyer belt 31, the sludge is subjected to preliminary pre-pressing by the press-filtering layer 43 on the press device 4, so that part of sewage in the sludge is pressed out, the sludge enters the press layer 44 through the conveying of the upper conveyer belt 41 and the lower conveyer belt 42, under the action of the transverse arrangement of the lower press roll 441 and the upper press roll 442 of the press layer 44, water flows downwards to the lower edges of the lower press roll 441 and the upper press roll 442 and then drips out, so that the water squeezed by the upper press roll 442 can be prevented from dripping onto the lower press roll 441 below to affect the pressing effect, and the edge of each lower press roll 441 is positioned in the radius range of the adjacent upper press roll 442, this positional relationship can increase the pressing area of the pressing layer 44 formed between the lower press roll 441 and the upper press roll 442, which is advantageous for improving the pressing effect on sludge, thereby improving the dehydration rate of pressed sludge.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the stirrer, the screw conveyor 2 and the filtered water conveying device of the present invention.

Fig. 3 is a schematic view of the structure of the striker plate according to the present invention.

Fig. 4 is a schematic structural view of the squeezing device of the present invention.

Fig. 5 is an enlarged view of a portion a of fig. 4.

Fig. 6 is a schematic structural view of the upper conveying belt and the lower conveying belt of the present invention.

Fig. 7 is a schematic view showing the structure of the press sections of the upper and lower belts according to the prior art.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 to 3, an automatic belt pressure type dehydrator comprises a stirring tank 1, a screw conveyor 2, a concentration conveying device 3 and a squeezing device 4, wherein the stirring tank 1 is installed at a material inlet of the screw conveyor 2, the stirring tank 1 is used for guiding sludge and a modifier into the material inlet of the screw conveyor 2 after fully mixing the sludge and the modifier, the screw conveyor 2 is installed at one end of the concentration conveying device 3, the screw conveyor 2 is a device for realizing the purpose of conveying and pushing materials by driving a helical blade to rotate by a motor, and the device can enable the sludge to be uniformly distributed on the concentration conveying device 3. The concentration conveying device 3 is provided with a water filtering conveying belt 31, the water filtering conveying belt 31 is provided with pores, and the pores can leak the moisture in the sludge to improve the concentration of the sludge so as to facilitate subsequent treatment. All be equipped with on concentrated conveyor 3 and the squeezing device 4 and adjust the tensile elasticity roller 7 of conveyer belt and be used for correcting the roller 6 that rectifies of conveyer belt skew, wherein elasticity roller 7 with rectify roller 6 and control by the pneumatic mechanism who sets up in frame 8, can adjust the elasticity degree of conveyer belt through elasticity roller 7 to guarantee the transmission efficiency of conveyer belt, can keep the stable transportation of conveyer belt and do not squint through rectifying roller 6. The drive rollers 45 on the concentration conveying device 3 and the squeezing device 4 are respectively provided with a scraper 11 for scraping sludge, so that the sludge on the conveying belt can be scraped. Still be equipped with a plurality of striker plate 32 on the concentrated conveyor 3, be equipped with a plurality of striker plate 321 on the striker plate 32, striker plate 321 is the V-arrangement, under the effect of striker plate 321 two-way dredging to the transport of mud is convenient for.

As shown in fig. 4 to 6, the squeezing device 4 includes an upper conveying belt 41 and a lower conveying belt 42, both the upper conveying belt 41 and the lower conveying belt 42 are provided with holes, a filter pressing layer 43 and a squeezing layer 44 for squeezing sludge are provided between the upper conveying belt 41 and the lower conveying belt 42, the filter pressing layer 43 is arc-shaped, the filter pressing layer 43 is filter-pressed by a plurality of filter pressing rollers 431, most of water in sludge can be pre-pressed in advance by the filter pressing rollers 431, and the water in sludge is gradually reduced. The press layer 44 is composed of a plurality of lower press rolls 441 and a plurality of upper press rolls 442, and the press layer 44 is in a continuous S shape, and water in the sludge is further pressed out through the gradually increased pressure and shearing force of the lower press rolls 441 and the plurality of upper press rolls 442, so as to complete the whole dewatering process, wherein the plurality of lower press rolls 441 and the plurality of upper press rolls 442 are respectively arranged in a transverse direction, so as to press the sludge between the lower press rolls 441 and the upper press rolls 442 to remove water, and the water drops out after flowing down to the lower edges of the lower press rolls 441 and the upper press rolls 442 under the action of the transverse arrangement and the gravity of the water itself, so that the water squeezed out by the upper press rolls 442 can be prevented from dropping on the lower press rolls 441 below to affect the pressing effect. The edge of each lower press roll 441 is located within the radius of the adjacent upper press roll 442 (compare fig. 6 and 7), and this positional relationship can increase the contact area of the press layer 44 formed between the lower press roll 441 and the upper press roll 442, thereby increasing the press area, which is beneficial to improving the press effect on sludge.

As shown in fig. 1 to 4, the concentration conveying device 3 and the squeezing device 4 are further provided with a spraying pipe 5, the spraying pipe 5 is a pipeline connected with a water source, and the pipeline is provided with a plurality of spraying holes corresponding to the conveying belt direction, so that the water source can form high-pressure spraying through the plurality of spraying holes, so as to clean the residual sludge on the conveying belt, prevent the sludge from blocking the holes on the conveying belt and affecting the dewatering effect, and a water tank 41 which can be used for collecting the cleaned sewage is correspondingly arranged below the spraying pipe 5 arranged on the upper conveying belt 41, so as to prevent the sewage from dripping on the lower conveying belt 42 and affecting the dewatering effect.

As shown in the attached drawings 1 to 6, when in use, after the sludge is discharged into the stirring tank 1, the modifying agent is added for mixing and stirring to improve the concentration of the sludge, then the sludge is discharged to the feeding port of the screw conveyor 2 through the opening at the bottom of the stirring tank 1, the sludge is uniformly discharged onto the concentration conveying device 3 through the screw conveyor 2, free water in the sludge is separated under the dredging of the material blocking frame 32 and the gravity of water through the transmission of the water filtering conveying belt 31 of the concentration conveying device 3, sewage is discharged from the pores of the water filtering conveying belt 31, then the sludge is conveyed onto the squeezing device 4 through the water filtering conveying belt 31, the sludge is preliminarily pressed by the filter pressing layer 43 of the squeezing device 4 to squeeze out partial water in the sludge, the sludge is conveyed to the squeezing layer 44 after the upper conveying belt 41 and the lower conveying belt 42, under the action of the gradually increased shearing force and pressure on the squeezing layer 44, the sludge is further squeezed, the remaining water is squeezed out to form a mud cake with lower water content, and meanwhile, under the arrangement action of the lower squeezing roller 441 and the upper squeezing roller 442, the sewage squeezed by the upper squeezing roller 442 can be prevented from dropping on the lower squeezing roller 441, so that the squeezing effect of the sludge is not affected. And then the scraper 11 at the driving roller 45 scrapes off mud cakes on the upper conveying belt 41 and the lower conveying belt 42, so as to prevent the mud from flowing back to the feeding end of the pressing device 4, and the pressing effect of the mud is not influenced.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims (3)

1. The utility model provides an automatic change area pressure formula hydroextractor, including agitator tank (1), auger delivery ware (2), concentrated conveyor (3) and squeeze device (4), agitator tank (1) is installed in the pan feeding mouth department of auger delivery ware (2), auger delivery ware (2) are installed in one of concentrated conveyor (3) and are served, be equipped with drainage conveyer belt (31) on concentrated conveyor (3), be equipped with the hole on drainage conveyer belt (31), its characterized in that: the squeezing device (4) comprises an upper conveying belt (41) and a lower conveying belt (42), the upper conveying belt (41) and the lower conveying belt (42) are provided with holes, a filter pressing layer (43) and a squeezing layer (44) for squeezing sludge are arranged between the upper conveying belt (41) and the lower conveying belt (42), the filter pressing layer (43) is arc-shaped, the filter pressing layer (43) is subjected to filter pressing through a plurality of filter pressing rollers (431), the squeezing layer (44) is composed of a plurality of lower squeezing rollers (441) and a plurality of upper squeezing rollers (442), the squeezing layer (44) is in a continuous S shape, the plurality of lower squeezing rollers (441) and the plurality of upper squeezing rollers (442) are transversely arranged, and the edge of each lower squeezing roller (441) is positioned in the radius range of the adjacent upper squeezing rollers (442); the concentration conveying device (3) and the squeezing device (4) are also provided with spray pipes (5), the spray pipes (5) are pipelines connected with a water source, a plurality of spray holes are formed in the pipelines corresponding to the conveying belt direction, and water grooves (41) used for collecting cleaned sewage are correspondingly formed below the spray pipes (5) arranged on the upper conveying belt (41).

2. The automatic belt press type dehydrator of claim 1, wherein: and scraping plates (11) for scraping sludge are arranged at the driving rollers (45) on the concentration conveying device (3) and the squeezing device (4).

3. The automatic belt press type dehydrator of claim 1, wherein: the concentrating and conveying device (3) is further provided with a plurality of material blocking frames (32), a plurality of material blocking plates (321) are arranged on the material blocking frames (32), and the material blocking plates (321) are V-shaped.

Images