CN210065500U - Hydroextractor with pre-compaction dehydration function - Google Patents

Abstract

The utility model relates to an environmental protection machinery especially indicates a hydroextractor with pre-compaction dehydration function, including auger delivery ware, drainage conveyer belt and squeeze the device, carry to the lower conveyer belt that squeezes the device after mud is handled on, in the transport messenger mud through lower conveyer belt enters into the pre-compaction layer, at the first pre-compaction layer on pre-compaction layer, under the effect on second pre-compaction layer and third pre-compaction layer, can carry out preliminary pre-compaction with mud, make mud form preliminary sludge cake, preliminary sludge cake is squeezed by the pressure boost under the effect on squeezing the layer once more, make the dehydration rate of last discharge sludge cake increase, can avoid simultaneously mud to get into splashing and polluted environment with sewage squeezing when squeezing the layer of high pressure, be favorable to utilizing the collection of sewage. Under the effect of high pressure shower, can wash the mud cake that remains on last conveyer belt and lower conveyer belt, prevent that the mud cake from being carried back between last conveyer belt and the lower conveyer belt, avoid influencing sludge dewatering's efficiency.

Description

Hydroextractor with pre-compaction dehydration function

Technical Field

The utility model relates to an environmental protection machinery especially indicates a hydroextractor with pre-compaction dehydration function.

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, the dehydrator is used as an environment-friendly device, and the function of the dehydrator is to pressurize and dehydrate the sludge with high water content generated in the sewage treatment process into a mud cake with high solid content, so that conditions are provided for subsequent treatment of the sludge. But the press dehydration effect of the belt sludge dewatering machine commonly used at present is lower, leads to the mud cake moisture content of output to be higher, influences subsequent processing, and when mud directly got into the press portion simultaneously, sewage was easily by the extrusion spill under the effect of pressure and polluted the surrounding environment, and the influence utilizes the collection of sewage.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hydroextractor with pre-compaction dehydration function to overcome prior art belt sludge dewaterer's the dehydration effect that squeezes lower, the mud cake moisture content that leads to the output is higher, influences subsequent processing, and when mud directly got into the press portion, sewage was extruded the spill under the effect of pressure easily and pollutes the problem of surrounding environment simultaneously.

The utility model adopts the following technical scheme: the utility model provides a hydroextractor with pre-compaction dehydration function, includes auger delivery ware 1, drainage conveyer belt 2 and squeezes device 3, auger delivery ware 1 is located the top of 2 one ends of drainage conveyer belt, the other end of drainage conveyer belt 2 is equipped with squeezes device 3, its characterized in that: the squeezing device 3 comprises an upper conveyer belt 5 and a lower conveyer belt 6, both the upper conveyer belt 5 and the lower conveyer belt 6 are provided with holes, a prepressing layer 8 and a squeezing layer 9 for squeezing sludge in advance are arranged between the upper conveyer belt 5 and the lower conveyer belt 6, the prepressing layer 8 is connected with the squeezing layer 9, the prepressing layer 8 is used for prepressing sludge through a plurality of prepressing rollers 7, the squeezing layer 9 is squeezed through a plurality of squeezing rollers 93, the prepressing layer 8 is divided into a first prepressing layer 81, a second prepressing layer 82 and a third prepressing layer 83, the first prepressing layer 81, the second prepressing layer 82 and the third prepressing layer 83 are all arranged in an arc shape, wherein the first prepressing layer 81 and the third prepressing layer 83 have the same direction and are opposite to the direction of the second prepressing layer 82; the pressing layer 9 is divided into a first pressing layer 91 and a second pressing layer 92, the first pressing layer 91 and the second pressing layer 92 are arranged in an S shape, and the first pressing layer 91 is connected with the second pressing layer 92; a plurality of water channels 10 are arranged below the first pressing layer 91 and the second pressing layer 92 of the pressing layer 9, and two ends of each water channel 10 are provided with a drain pipe 101; an upper conveying belt 5 is arranged above the bottommost water tank 10, high-pressure spray pipes 12 capable of cleaning the upper conveying belt 5 are arranged above the upper conveying belt 5 and above the lower conveying belt 6, the high-pressure spray pipes 12 are connected with water pipes, and water is sprayed out through a plurality of spray heads on the high-pressure spray pipes 12.

As a further improvement, a surrounding plate 11 is arranged at one end of the lower conveying belt 6 of the squeezing device 3, and the rectifying rollers 4 are arranged at one ends of the upper conveying belt 5 and the lower conveying belt 6.

As a further improvement, a driving roller 13 capable of driving the water filtering conveyer belt is arranged at the tail end of the water filtering conveyer belt 2 and the upper conveyer belt 5, and a scraper 14 capable of scraping sludge is arranged on the conveyer belt at the position of the driving roller 13.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: after being treated, the sludge is conveyed to the lower conveying belt 6 of the squeezing device 3, the sludge enters the prepressing layer 8 through the conveying of the lower conveying belt, the sludge can be preliminarily prepressed under the action of the first prepressing layer 81, the second prepressing layer 82 and the third prepressing layer 83 of the prepressing layer 8, so that the sludge forms a preliminary sludge cake, the preliminary sludge cake is pressurized and squeezed again under the action of the squeezing layer 9, the dehydration rate of the finally discharged sludge cake is increased, the phenomenon that the sewage is squeezed to pollute the environment when the sludge enters the squeezing layer 9 with high pressure for squeezing can be avoided, and the sewage can be collected and utilized. Under the effect of high pressure shower 12, can wash the mud cake that remains on last conveyer belt 5 and lower conveyer belt 6, prevent that the mud cake from being carried back between last conveyer belt 5 and the lower conveyer belt 6, avoid influencing sludge dewatering's efficiency.

Drawings

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

Fig. 2 is a schematic structural view of the squeezing device of the present invention.

Fig. 3 is an enlarged schematic view of a in fig. 2.

Fig. 4 is an enlarged structural diagram of B in fig. 2.

Fig. 5 is a schematic side view of the upper and lower conveyor belts of the present invention.

Detailed Description

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

As shown in the accompanying drawings 1 to 2, a dehydrator with a pre-pressing dehydration function comprises a screw conveyor 1, a water filtering conveyor belt 2 and a squeezing device 3, wherein the screw conveyor 1 is arranged above one end of the water filtering conveyor belt 2, the screw conveyor 1 drives a helical blade to rotate through a motor to realize conveying and pushing of materials, the device can uniformly distribute sludge on the water filtering conveyor belt 2 so as to facilitate subsequent processing, and the squeezing device 3 is arranged at the other end of the water filtering conveyor belt 2. Squeeze device 3 including last conveyer belt 5 and lower conveyer belt 6, be equipped with bounding wall 11 at one of the lower conveyer belt 6 of squeezing device 3, can keep apart mud in lower conveyer belt 6, mud outward flow when avoiding mud conveying to this department spills. The upper conveying belt 5 and the lower conveying belt 6 are both provided with holes which can enable sewage in sludge to leak out, a prepressing layer 8 and a pressing layer 9 which are used for pressing sludge in advance are arranged between the upper conveying belt 5 and the lower conveying belt 6, the prepressing layer 8 is connected with the pressing layer 9, the prepressing layer 8 performs prepressing on the sludge through a plurality of prepressing rollers 7, and the pressing layer 9 performs pressing through a plurality of pressing rollers 93. The pre-pressing layer 8 is divided into a first pre-pressing layer 81, a second pre-pressing layer 82 and a third pre-pressing layer 83, the first pre-pressing layer 81, the second pre-pressing layer 82 and the third pre-pressing layer 83 are arranged in an arc shape, the first pre-pressing layer 81 and the third pre-pressing layer 83 have the same direction and are opposite to the direction of the second pre-pressing layer 82, the first pre-pressing layer 81 can preliminarily press out sewage in the sludge, the preliminarily pressed sludge can be pressed again under the action of the arc shape of the second pre-pressing layer 82 in the opposite direction, the sewage in the sludge is pressed again until the third pre-pressing layer 83 is pre-pressed in the opposite direction to the second pre-pressing layer 82 again, so that the sludge gradually forms a preliminary sludge cake shape at the position, a small amount of water remains in the sludge cake-shaped sludge at the moment, the preliminary pressing is beneficial to the subsequent pressing, and the sludge is prevented from being directly pressed by the pressing layer 9 to splash the sewage, is beneficial to the collection of sewage and avoids the sewage from splashing on the ground to influence the environment. A coaming plate 11 is arranged at one end of the lower conveying belt 6 of the squeezing device 3. The tail ends of the water filtering conveying belt 2 and the upper conveying belt 5 are respectively provided with a driving roller 13 capable of driving the conveying belts, and the conveying belts at the driving rollers 13 are respectively provided with a scraper 14 capable of scraping sludge.

As shown in fig. 2, the pressing layer 9 is divided into a first pressing layer 91 and a second pressing layer 92, the first pressing layer 91 and the second pressing layer 92 are both in an S-shaped arrangement, the first pressing layer 91 is connected with the second pressing layer 92, when a preliminary sludge cake after prepressing is conveyed to the pressing roller 93, the preliminary sludge cake enters the first pressing layer 91 and the second pressing layer 92, the preliminary sludge cake is gradually pressed out by a small amount of residual sewage in the preliminary sludge cake after being subjected to increased pressure and shearing force, and thus a drier sludge cake is generated, the dehydration rate of the pressed sludge cake is increased, and the subsequent treatment of the sludge cake is facilitated. A plurality of water channels 10 are arranged below the first squeezing layer 91 and the second squeezing layer 92 of the squeezing layer 9, and the two ends of each water channel 10 are provided with a drain pipe 101, so that sewage squeezed on the squeezing layer 9 can be discharged through the drain pipes 101 after being collected in the water channels 10, and the squeezed sewage is prevented from flowing into a sludge cake below.

As shown in fig. 2, the upper conveying belt 5 is arranged above the bottommost water tank 10, and the high-pressure spraying pipes 12 capable of cleaning the upper conveying belt 5 are arranged right above the upper conveying belt 5 and above the lower conveying belt 6, wherein the high-pressure spraying pipes 12 are connected with water pipes, water is sprayed out through a plurality of spraying heads on the high-pressure spraying pipes 12, high-pressure water sprayed out can impact on the upper conveying belt 5 and is used for cleaning sludge cakes remained on the upper conveying belt 5 and the lower conveying belt 6, the upper conveying belt 5 and one end of the lower conveying belt 6 are respectively provided with the deviation rectifying roller 4, and the deviation rectifying rollers 4 are controlled by a pneumatic mechanism and can ensure that the upper conveying belt 5 and the lower conveying belt 6 are not easy to deviate.

As shown in the attached drawings 1 to 5, when in use, the mixed sludge is discharged to the screw conveyor 1, the sludge is uniformly distributed on the water filtering conveying belt 2 through the screw conveyor 1, after the water filtering treatment of the water filtering conveying belt 2, the sludge is conveyed to the lower conveying belt 6 of the squeezing device 3, after the sludge is conveyed by the lower conveying belt 6 of the squeezing device 3, the sludge enters the prepressing layer 8 between the upper conveying belt 5 and the lower conveying belt 6, the sludge is preliminarily pressed under the action of the prepressing roller 7, a preliminary sludge cake is formed by the prepressing sludge, the preliminary sludge cake enters the squeezing layer 9 after being conveyed by the squeezing roller 93, the preliminary sludge cake is squeezed again under the action of the gradually increased pressure and shearing force, a small amount of residual sewage in the preliminary cake is squeezed into the water tank 10, the sewage is discharged by the water discharge pipe 101, and finally the dry sludge cake formed by squeezing is discharged at the driving roller 13, the sludge cake at this time is scraped by the scraper 14 arranged on the driving roller 13, so that the sludge cake is prevented from being conveyed back to the position between the upper conveying belt 5 and the lower conveying belt 6, and the sludge dewatering efficiency is prevented from being 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 a hydroextractor with pre-compaction dehydration function, including auger delivery ware (1), drainage conveyer belt (2) and squeeze device (3), the top of drainage conveyer belt (2) one end is located in auger delivery ware (1), the other end of drainage conveyer belt (2) is equipped with squeezes device (3), its characterized in that: the squeezing device (3) comprises an upper conveying belt (5) and a lower conveying belt (6), the upper conveying belt (5) and the lower conveying belt (6) are provided with holes, a prepressing layer (8) and a squeezing layer (9) for squeezing sludge in advance are arranged between the upper conveying belt (5) and the lower conveying belt (6), the prepressing layer (8) is connected with the squeezing layer (9), the prepressing layer (8) pre-presses the sludge through a plurality of prepressing rollers (7), the squeezing layer (9) is squeezed through a plurality of squeezing rollers (93), the prepressing layer (8) is divided into a first prepressing layer (81), a second prepressing layer (82) and a third prepressing layer (83), the first prepressing layer (81), the second prepressing layer (82) and the third prepressing layer (83) are arranged in an arc shape, wherein the first prepressing layer (81) and the third prepressing layer (83) are in the same direction, opposite to the direction of the second pre-press (82); the squeezing layer (9) is divided into a first squeezing layer (91) and a second squeezing layer (92), the first squeezing layer (91) and the second squeezing layer (92) are arranged in an S shape, and the first squeezing layer (91) is connected with the second squeezing layer (92); a plurality of water tanks (10) are arranged below the first pressing layer (91) and the second pressing layer (92) of the pressing layer (9), and drain pipes (101) are arranged at two ends of each water tank (10); an upper conveying belt (5) is arranged above the bottommost water tank (10), high-pressure spray pipes (12) capable of cleaning the upper conveying belt (5) are arranged above the upper conveying belt (5) and above the lower conveying belt (6), the high-pressure spray pipes (12) are connected with a water pipe, and water is sprayed out through a plurality of spray heads on the high-pressure spray pipes (12).

2. The dehydrator with pre-pressing dehydration function according to claim 1, wherein: one of the lower conveying belt (6) of the squeezing device (3) is provided with a coaming (11), and one of the upper conveying belt (5) and the lower conveying belt (6) is provided with a rectification roller (4).

3. The dehydrator with pre-pressing dehydration function according to claim 1, wherein: the tail ends of the water filtering conveying belt (2) and the upper conveying belt (5) are respectively provided with a driving roller (13) capable of driving the conveying belts, and scraping plates (14) capable of scraping sludge are respectively arranged on the conveying belts at the driving rollers (13).

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