A spiral stacking, concentrating and dehydrating integrated machine

Abstract

The utility model discloses a kind of stacked spiral concentration dehydration integrated machines, it is related to stacked spiral dehydration equipment technical field, including base, the base is obliquely installed in equipment site, and the base upper portion is provided with cylinder, the cylinder right side is provided with concentration part, and the cylinder left side is provided with dehydration part, and concentration part and dehydration part internal space are communicated, the fixed mounting plate of cylinder left side, and the servo motor is installed in mounting plate left side, and servo motor is connected with output end by speed reducer, the output end right side is connected and installed with screw rod, and screw rod is penetrated in cylinder interior, the cylinder left side outside is provided with back pressure plate, and back pressure plate rear side is provided with mud scraping rod, the base interior is water tank structure, and the base interior is provided with filter plate. The stacked spiral concentration dehydration integrated machine solves the problem of traditional equipment mud cake blockage, cleaning is complicated, dehydration efficiency is improved, continuous operation time is extended, and is suitable for municipal, industrial sludge dewatering treatment.

Description

Technical Field

[0001] This utility model relates to the technical field of screw press dehydration equipment, specifically a screw press concentration and dehydration integrated machine. Background Technology

[0002] The screw press dewatering machine is a high-efficiency device for sludge dewatering. Its core structure consists of two nested screw shafts and a filter body composed of fixed and moving rings. During operation, sludge enters through the feed inlet and moves with the gaps between the rings under the push of the screw shafts. The sludge is separated from the water by the squeezing pressure generated by the gradually narrowing chamber. The filtrate is discharged from the gaps between the rings, and the dewatered sludge cake is discharged from the end. It operates at low speed, has low energy consumption, and is not easily clogged. It is suitable for various types of sludge, including municipal sewage and industrial wastewater, and can reduce the moisture content to 75%-85%. However, existing screw press sludge dewatering machines still have some problems in use:

[0003] For example, a screw press sludge dewatering machine with application number 202323376742.8 includes a frame. The technical solution is as follows: a screw press dewatering box is inclined at the end of the frame. A geared motor box is provided on one side of the screw press dewatering box, and a sludge mixing and feeding box is provided at the other end of the screw press dewatering box. A screw press rotating rod is rotatably provided in the screw press dewatering box. When the sludge enters the dewatering filter cylinder from the feeding box, the screw press dewatering blades, with the screw pitch decreasing from right to left, apply progressively increasing pressure to the sludge. After entering the end of the screw press rotating rod, the sludge is rapidly concentrated due to the increased dewatering pressure and is pushed into the dewatering section for dewatering, thus completely squeezing out the water from the sludge. However, the existing sludge cake outlet, which serves as the discharge channel for the solid material after dewatering, is prone to "bridging" blockage due to the fluctuation of the thrust at the end of the screw shaft and the moisture content of the sludge cake. The cleaning of existing equipment relies on manual disassembly and rinsing or simple spraying, which cannot achieve fully automatic cleaning and reduces maintenance efficiency.

[0004] In view of this, in-depth research was conducted on the above issues, which led to the creation of this case.

[0005] To address the aforementioned issues, an innovative design was implemented based on the existing screw press sludge dewatering machine. Utility Model Content

[0006] The purpose of this invention is to provide an integrated screw press for thickening and dehydration, in order to solve the problems mentioned in the background art, such as easy blockage of the mud cake outlet and inability to automatically clean.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A screw press thickening and dehydration integrated machine includes a base, which is installed at an incline on the equipment site. A cylinder is arranged on top of the base. A thickening section is arranged on the right side of the cylinder, and a dehydration section is arranged on the left side of the cylinder. The internal spaces of the thickening section and the dehydration section are connected. A feed pipe is fixedly arranged on the upper right side of the cylinder. An installation plate is fixedly arranged on the left side of the cylinder, and a servo motor is installed on the left side of the installation plate. The servo motor is connected to an output end through a reducer. A screw rod is connected and installed on the right side of the output end, and the screw rod passes through the inside of the cylinder. A back pressure plate is arranged on the outer left side of the cylinder, and a scraper rod is arranged on the rear side of the back pressure plate. The base has a water tank structure inside, and a filter plate is arranged inside the base.

[0009] Preferably, the pitch of the screw rod decreases from right to left.

[0010] Using the above technical solution, the screw pitch decreases from right to left, forming a gradient extrusion pressure from the thickening section to the dewatering section, so that the sludge is gradually dewatered during the transportation process, and the moisture content drops from 98% to 75%-85%. This improves the dewatering efficiency compared to the equidistant screw design and avoids clogging caused by excessive instantaneous pressure on the sludge.

[0011] Preferably, the scraper rod is fixedly installed on the outside of the output end, and the scraper rod is located at the left outlet of the cylinder.

[0012] Using the above technical solution, the scraper rod is fixed to the outside of the output end and rotates synchronously with the servo motor. It can clean the residual mud cake at the left outlet of the cylinder in real time, eliminate the "bridging" blockage, improve the smoothness of mud cake discharge, and reduce the frequency of manual dredging.

[0013] Preferably, an inclined plate is provided below the left outlet of the cylinder, and the inclined plate is fixedly connected to the bottom right side of the mounting plate, and the bottom of the inclined plate is connected to the collection box.

[0014] Using the above technical solution, the inclined plate has an inclination angle of 30° and connects the cylinder outlet to the collection box. Gravity guides the dehydrated mud cake to slide down, preventing the mud cake from accumulating at the outlet. At the same time, the surface of the inclined plate is treated with anti-sticking, reducing the amount of mud cake residue and ensuring collection efficiency.

[0015] Preferably, a water outlet pipe is provided on the right side of the base via a pump, and the water outlet pipe is connected to the feed pipe via a flange connecting hose to form a cleaning structure. A drain pipe is connected to the lower left side of the cylinder, and the drain pipe is connected to the upper left side of the base via a drain valve.

[0016] Using the above technical solution, the water outlet pipe forms a cleaning structure with the feed pipe through the pump, which can pump the filtered clean water in the base into the cylinder to realize the automatic rinsing of the screw rod, the concentration section and the dehydration section, and improve the water resource recycling rate.

[0017] Preferably, filter plates are vertically fixed on both the left and right sides inside the base to filter the cleaning wastewater, forming a water recycling structure.

[0018] Using the above technical solution, the filter plate inside the base performs secondary filtration of the cleaning wastewater, intercepting sludge particles, so that the turbidity of the filtered water is ≤10NTU, which can be directly used for secondary cleaning or discharge, reducing wastewater treatment costs and meeting environmental protection standards.

[0019] Compared with the prior art, the beneficial effects of this utility model are: this integrated screw press concentration and dehydration machine,

[0020] 1. Gradient dewatering and anti-clogging design: The decreasing spacing of the screw rod, combined with the real-time cleaning of the scraper rod, forms a "gradient extrusion + dynamic anti-clogging" synergistic mechanism. After the initial dewatering in the concentration section, the dewatering section increases the extrusion pressure by reducing the spacing. At the same time, the scraper rod avoids outlet blockage, which extends the continuous operation time of the equipment and improves upon traditional equipment.

[0021] 2. Water circulation cleaning and energy-saving design: The closed-loop cleaning structure of the outlet and inlet pipes, combined with the wastewater purification function of the filter plate inside the base, enables the recycling of cleaning water, reducing daily water consumption by 30%. Automatic cleaning replaces manual disassembly, improving maintenance efficiency and adapting to continuous sludge treatment scenarios. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the cylindrical body of this utility model;

[0024] Figure 3 This is a schematic diagram of the scraper rod structure of this utility model;

[0025] Figure 4 This is a cross-sectional view of the base structure of this utility model.

[0026] In the diagram: 1. Base; 2. Cylinder; 201. Concentration section; 202. Dehydration section; 3. Feed pipe; 4. Mounting plate; 5. Servo motor; 6. Output end; 7. Back pressure plate; 8. Scraper rod; 9. Spiral rod; 10. Inclined plate; 11. Collection box; 12. Water outlet pipe; 13. Drain pipe; 14. Filter plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4 This utility model provides a technical solution:

[0029] A screw press thickening and dehydration integrated machine includes a base 1, which is installed at an incline on the equipment site. A cylinder 2 is arranged on top of the base 1. A thickening section 201 is arranged on the right side of the cylinder 2, and a dehydration section 202 is arranged on the left side of the cylinder 2. The internal spaces of the thickening section 201 and the dehydration section 202 are connected. A feed pipe 3 is fixedly arranged on the upper right side of the cylinder 2. An installation plate 4 is fixedly arranged on the left side of the cylinder 2. A servo motor 5 is installed on the left side of the installation plate 4. The servo motor 5 is connected to an output end 6 through a reducer. A screw rod 9 is connected and installed on the right side of the output end 6. The screw rod 9 penetrates the inside of the cylinder 2. A back pressure plate 7 is arranged on the outer left side of the cylinder 2. A scraper rod 8 is arranged on the rear side of the back pressure plate 7. The inside of the base 1 is a water tank structure, and a filter plate 14 is arranged inside the base 1.

[0030] The pitch of the screw rod 9 decreases from right to left, creating a gradient extrusion force between the thickening section 201 and the dewatering section 202. This allows the sludge to be gradually dewatered during transport, reducing the moisture content from 98% to 75%-85%. This improves the dewatering efficiency compared to an equidistant screw design and avoids clogging caused by excessive instantaneous pressure.

[0031] The scraper rod 8 is fixedly installed on the outside of the output end 6, and the scraper rod 8 is located at the left outlet of the cylinder 2. An inclined plate 10 is set below the left outlet of the cylinder 2, and the inclined plate 10 is fixedly connected to the bottom right side of the mounting plate 4. The bottom of the inclined plate 10 is connected to the collection box 11. The scraper rod 8 is fixed on the outside of the output end 6 and rotates synchronously with the servo motor 5. It can clean the residual mud cake at the left outlet of the cylinder 2 in real time, eliminate the "bridging" blockage, improve the smoothness of mud cake discharge, and reduce the frequency of manual unblocking. The inclined plate 10 has an inclination angle of 30° and connects the outlet of the cylinder 2 to the collection box 11. It uses gravity to guide the dehydrated mud cake to slide down, avoiding the accumulation of mud cake at the outlet. At the same time, the surface of the inclined plate is treated with anti-sticking, reducing the amount of mud cake residue and ensuring collection efficiency.

[0032] A water outlet pipe 12 is installed on the right side of the base 1 via a pump, and the water outlet pipe 12 is connected to the feed pipe 3 via a flange connecting hose to form a cleaning structure. A drain pipe 13 is connected to the lower left side of the cylinder 2, and the drain pipe 13 is connected to the upper left side of the base 1 via a drain valve. Filter plates 14 are vertically fixed on both sides inside the base 1 to filter the cleaning wastewater and form a water recycling structure. The water outlet pipe 12, through the pump and the feed pipe 3, forms a cleaning structure that can pump the filtered clean water in the base 1 into the cylinder 2, realizing automatic rinsing of the screw rod 9, the concentration section 201 and the dewatering section 202, and improving the water resource recycling rate. The filter plates 14 in the base 1 perform secondary filtration of the cleaning wastewater, intercepting sludge particles, so that the turbidity of the filtered clean water is ≤10 NTU, which can be directly used for secondary cleaning or discharge, reducing wastewater treatment costs and meeting environmental protection standards.

[0033] Working principle:

[0034] In use, the dewatering process of this invention is as follows: sludge enters the concentration section 201 of the cylinder 2 through the feed pipe 3; the servo motor 5 drives the screw rod 9 to rotate through the output end 6; and because the screw pitch decreases from right to left...

[0035] Concentration stage: When the screw rod 9 drives the shaft to rotate, the multiple fixed and movable discs set around the drive shaft move relative to each other. Under the action of gravity, the water in the sludge is filtered out from the gaps between the discs, achieving rapid concentration.

[0036] Dewatering stage: The concentrated sludge moves forward continuously under the push of the screw rod 9. As the pitch of the screw rod 9 gradually decreases, the gap between the rings also gradually shrinks, and the volume of the screw cavity continuously shrinks. Under the action of the back pressure plate 7 at the outlet, the water in the sludge is further squeezed out, and the solid content of the filter cake gradually increases, ultimately achieving continuous dewatering of the sludge. The scraper rod 8 rotates with the output end 6 to clean the residual sludge cake at the left outlet of the cylinder 2 to avoid blockage. The sludge cake is squeezed by the back pressure plate 7 and slides down the inclined plate 10 to the collection box 11. The filter plate 14 in the base 1 filters the seepage water and pumps it back to the feed pipe 3 through the water outlet pipe 12 to automatically clean the inside of the cylinder 2. The sewage flows back to the base 1 through the drain pipe 13 to form a cycle.

[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screw press thickening and dehydration integrated machine, comprising a base (1), the base (1) being installed at an incline on the equipment site, and a cylinder (2) being provided above the base (1), a thickening section (201) being provided on the right side of the cylinder (2), and a dehydration section (202) being provided on the left side of the cylinder (2), and the internal spaces of the thickening section (201) and the dehydration section (202) being connected, and a feed pipe (3) being fixedly provided on the upper right side of the cylinder (2), characterized in that: A mounting plate (4) is fixedly installed on the left side of the cylinder (2), and a servo motor (5) is installed on the left side of the mounting plate (4). The servo motor (5) is connected to an output end (6) through a reducer. A spiral rod (9) is connected to the right side of the output end (6) and the spiral rod (9) passes through the inside of the cylinder (2). A back pressure plate (7) is provided on the outside of the left side of the cylinder (2), and a scraper rod (8) is provided on the back side of the back pressure plate (7). The base (1) has a water tank structure inside, and a filter plate (14) is provided inside the base (1).

2. The integrated screw press concentration and dehydration machine according to claim 1, characterized in that: The pitch of the helical rod (9) decreases from right to left.

3. The integrated screw press concentration and dehydration machine according to claim 1, characterized in that: The scraper rod (8) is fixedly installed on the outside of the output end (6), and the scraper rod (8) is located at the left outlet of the cylinder (2).

4. The integrated screw press concentration and dehydration machine according to claim 1, characterized in that: An inclined plate (10) is provided below the left outlet of the cylinder (2), and the inclined plate (10) is fixedly connected to the bottom right side of the mounting plate (4), and the bottom of the inclined plate (10) is connected to the collection box (11).

5. The integrated screw press concentration and dehydration machine according to claim 1, characterized in that: The base (1) has a water outlet pipe (12) installed on the right side via a pump, and the water outlet pipe (12) is connected to the feed pipe (3) via a flange connecting hose to form a cleaning structure. The lower left side of the cylinder (2) is connected to a drain pipe (13), and the drain pipe (13) is connected to the upper left side of the base (1) via a drain valve.

6. The integrated screw press concentration and dehydration machine according to claim 1, characterized in that: The base (1) has filter plates (14) vertically fixed on both the left and right sides inside to filter the cleaning wastewater and form a water recycling structure.

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