Uniform material distribution mechanism of sludge filter press

By using a material distribution box and a motor-driven extrusion guide roller in a filter press, combined with an electric push rod adjustment plate, the problem of uneven sludge thickness was solved, thus improving the sludge filtration effect and processing quality.

CN223822630UActive Publication Date: 2026-01-23CENT PLAINS ENVIRONMENT PROTECTION CO LTD +1
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Patent Information

Application Number
CN202520251074.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-01-23
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

The existing filter press's material feeding mechanism has a thickness deviation when feeding sludge onto the filter belt, resulting in uneven stress on the filter belt, which affects the uneven moisture content of the sludge and reduces the dewatering quality.

Method used

By using equal-width distribution channels in the distribution box and motor-driven extrusion guide rollers, combined with an electric push rod adjustment plate, the sludge is evenly distributed and of consistent thickness within the extrusion box. Through the cooperation of extrusion and adjustment plate, the sludge is evenly distributed onto the filter belt.

Benefits of technology

This method achieves uniform sludge distribution on the filter belt, improves the sludge pressing effect and processing quality, and enhances the applicability of the equipment and the accuracy of data statistics.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a uniform material distribution mechanism of a sludge filter press, which comprises a feeding conveying belt, a spiral conveyer is arranged at the discharging end of the feeding conveying belt, the feeding end of the spiral conveyer is positioned below the discharging end of the feeding conveying belt, a material distribution and flow guide box is mounted at the discharging end of the spiral conveyer, and an extrusion box is mounted at the discharging end of the material distribution and flow guide box. And a material distributing and discharging box is mounted at the lower part of the extrusion box. The sludge extrusion device has the beneficial effects that sludge at the discharge end of the screw conveyor can be uniformly distributed and fall into the extrusion box by arranging the material distribution flow channels with the same width in the material distribution flow guide box, so that the sludge at the feed end of the extrusion box is uniformly distributed; the motor is arranged to drive the extrusion guide roller to rotate, so that sludge in the extrusion box can be extruded and discharged, the thickness of the sludge at the discharge end of the extrusion box is consistent, and the thickness of the sludge which is subsequently distributed to the filter belt by the distribution and discharge box is consistent.
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Description

Technical Field

[0001] This utility model relates to the technical field of sludge filter press feeder, and in particular to a uniform feeder mechanism for a sludge filter press. Background Technology

[0002] A filter press is a machine that applies mechanical force to one side of the filter medium to achieve filtration. It is mainly used for solid-liquid separation of sludge (water). Vertical sludge deep filter press dewatering equipment is a type of mechanical dewatering equipment that has gradually emerged in recent years. Compared with common sludge dewatering machines, it has the characteristics of simple system, larger single processing capacity, lower operating cost, and high-pressure mechanical vertical extrusion of sludge. Under the conditions of proper selection and dosage of equipment and precise control, the moisture content of the influent sludge is about 80%, and the average moisture content of the outfluent sludge can reach 50%-55%. The sludge feeding mechanism is an important component of the vertical sludge deep filter press dewatering equipment. After the sludge comes out of the hopper, it is fed onto the filter belt through the feeding system.

[0003] While some existing filter presses can control the amount of material discharged during the feeding process, the thickness of the sludge on the filter belt varies. This leads to uneven stress on the filter belt during subsequent filtration, resulting in uneven moisture content of the sludge at different locations and affecting the dewatering quality of the sludge. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of some existing filter presses where, although the material feeding mechanism can control the material output during the feeding process, the thickness of the sludge on the filter belt varies, resulting in uneven local stress on the filter belt during subsequent filtration and uneven sludge moisture content at different locations, thus affecting the sludge dewatering quality. This invention provides a uniform material feeding mechanism for a sludge filter press.

[0005] The purpose of this utility model is achieved through the following technical solution: a uniform material distribution mechanism for a sludge filter press, including a feeding conveyor belt, a screw conveyor at the discharge end of the feeding conveyor belt, the feeding end of the screw conveyor being located below the discharge end of the feeding conveyor belt, a material distribution guide box installed at the discharge end of the screw conveyor, an extrusion box installed at the discharge end of the material distribution guide box, and a material distribution discharge box installed at the lower part of the extrusion box.

[0006] The discharge end of the material distribution box is aligned with the feed end of the extrusion box. The material distribution box is equipped with multiple material distribution channels, and the discharge ends of the multiple material distribution channels are of equal width. By setting the material distribution channels of equal width in the material distribution box, the sludge material at the discharge end of the screw conveyor can be evenly distributed and fall into the extrusion box, thereby making the sludge material at the feed end of the extrusion box evenly distributed.

[0007] The discharge end of the extrusion box is aligned with the inlet end of the fabric discharge box. A rotatable extrusion guide roller is installed inside the extrusion box, and a motor is mounted on the extrusion box. The power output end of the motor extends into the extrusion box and connects to the extrusion guide roller. By setting the motor to drive the extrusion guide roller to rotate, the sludge material in the extrusion box can be extruded and discharged, so that the thickness of the sludge material at the discharge end of the extrusion box is uniform. This ensures that the thickness of the sludge material distributed onto the filter belt by the subsequent fabric discharge box is uniform, thereby improving the subsequent sludge filtration effect and improving the processing quality of the sludge.

[0008] A further technical solution involves installing a fixed plate on one side of the material discharge box, an adjusting plate on the side of the material discharge box away from the fixed plate, and an electric push rod on one side of the material discharge box. The telescopic end of the electric push rod extends into the material discharge box and connects with the adjusting plate. By setting the electric push rod to drive the adjusting plate to move, the distance between the adjusting plate and the fixed plate can be adjusted, thereby adjusting the thickness of the sludge material at the discharge end of the material discharge box and effectively improving the applicability of the equipment.

[0009] A further technical solution is to install a chute inside the fabric discharge box, and install a slider on the adjustment plate that is slidably connected to the chute. By setting the chute and slider, the stability of the adjustment plate during movement can be improved.

[0010] A further technical solution is to install inclined parts on both the fixed plate and the adjusting plate that tilt towards the material discharge box. By setting the inclined parts on the fixed plate and the adjusting plate that tilt towards the material discharge box, a certain pressure can be applied to the sludge material, ensuring the continuity of sludge material discharge and thus improving the sludge distribution effect.

[0011] A further technical solution is to install a scraper plate inside the extrusion box that corresponds to the extrusion guide roller, thereby preventing the extrusion guide roller from sticking to the sludge.

[0012] A further technical solution is to use a belt weighing feeder for the feeding conveyor belt. Setting the feeding conveyor belt to a belt weighing feeder can measure the total amount of sludge fed, which is convenient for subsequent data statistics and calculations.

[0013] A further technical solution is that the feed conveyor belt can be replaced with a sludge conveying pipe, the discharge end of which is connected to the feed end of the screw conveyor, the feed end of which is connected to the discharge end of the silo, and a sludge pump connected to the sludge conveying pipe is installed at the discharge end of the silo.

[0014] This invention has the following advantages: By setting up equal-width distribution channels in the distribution guide box, the sludge from the screw conveyor discharge end can be evenly distributed and fall into the extrusion box, thus ensuring uniform sludge distribution at the extrusion box feed end. The motor-driven extrusion guide rollers can extrude and discharge the sludge from the extrusion box, resulting in a consistent sludge thickness at the extrusion box discharge end. This ensures consistent sludge thickness when the subsequent material is distributed onto the filter belt by the material distribution box, improving the subsequent sludge filtration effect and processing quality. Furthermore, by using an electric push rod to move the adjusting plate, the distance between the adjusting plate and the fixed plate can be adjusted, thereby regulating the sludge thickness at the material distribution box discharge end, effectively improving the equipment's applicability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the material distribution and diversion box in this utility model.

[0017] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of structure A in the middle;

[0019] Figure 5 This is a schematic diagram showing the cooperation state between the mud conveying pipeline and the screw conveyor in this utility model;

[0020] In the diagram, 1. Feed conveyor belt; 2. Screw conveyor; 3. Material distribution guide box; 4. Extrusion box; 5. Material discharge box; 6. Material distribution channel; 7. Extrusion guide roller; 8. Motor; 9. Scraper; 10. Fixed plate; 11. Adjusting plate; 12. Electric push rod; 13. Slide chute; 14. Sliding block; 15. Sludge conveying pipe; 16. Hopper; 17. Sludge pump. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1-4 As shown, a uniform material distribution mechanism for a sludge filter press includes a feeding conveyor belt 1, a screw conveyor 2 at the discharge end of the feeding conveyor belt 1, the feeding end of the screw conveyor 2 being located below the discharge end of the feeding conveyor belt 1, a material distribution guide box 3 installed at the discharge end of the screw conveyor 2, an extrusion box 4 installed at the discharge end of the material distribution guide box 3, and a material distribution discharge box 5 installed at the lower part of the extrusion box 4.

[0028] The discharge end of the material distribution box 3 is aligned with the feed end of the extrusion box 4. The material distribution box 3 is equipped with multiple material distribution channels 6. The discharge ends of the multiple material distribution channels 6 are of equal width. By setting the material distribution channels 6 of equal width in the material distribution box 3, the sludge material at the discharge end of the screw conveyor 2 can be evenly distributed and fall into the extrusion box 4, thereby making the sludge material at the feed end of the extrusion box 4 evenly distributed.

[0029] The discharge end of the extrusion box 4 is aligned with the inlet end of the cloth discharge box 5. A rotatable extrusion guide roller 7 is installed inside the extrusion box 4. A motor 8 is installed on the extrusion box 4. The power output end of the motor 8 extends into the extrusion box 4 and is connected to the extrusion guide roller 7. By setting the motor 8 to drive the extrusion guide roller 7 to rotate, the sludge material in the extrusion box 4 can be extruded and discharged, so that the thickness of the sludge material at the discharge end of the extrusion box 4 is uniform. This ensures that the thickness of the sludge material distributed on the filter belt by the subsequent cloth discharge box 5 is uniform, thereby improving the subsequent sludge filtration effect and improving the processing quality of the sludge.

[0030] A fixed plate 10 is installed on one side of the discharge end of the fabric discharge box 5, and an adjusting plate 11 is installed on the side of the fabric discharge box 5 away from the fixed plate 10. An electric push rod 12 is installed on one side of the fabric discharge box 5. The telescopic end of the electric push rod 12 extends into the fabric discharge box 5 and connects with the adjusting plate 11. By setting the electric push rod 12 to drive the adjusting plate 11 to move, the distance between the adjusting plate 11 and the fixed plate 10 can be adjusted, thereby adjusting the thickness of the sludge material at the discharge end of the fabric discharge box 5, effectively improving the applicability of the equipment.

[0031] The fabric discharge box 5 is equipped with a slide groove 13, and the adjusting plate 11 is equipped with a slider 14 that is slidably connected to the slide groove 13. By setting the slide groove 13 and the slider 14, the stability of the adjusting plate 11 when moving can be improved.

[0032] Both the fixed plate 10 and the adjusting plate 11 are equipped with inclined parts that tilt towards the material discharge box 5. By setting the inclined parts on the fixed plate 10 and the adjusting plate 11 that tilt towards the material discharge box 5, a certain pressure can be applied to the sludge material to ensure the continuity of sludge material discharge, thereby improving the sludge material distribution effect.

[0033] The extrusion box 4 is equipped with a scraper 9 corresponding to the extrusion guide roller 7. The scraper 9 is set to prevent the extrusion guide roller 7 from sticking to the sludge.

[0034] The feeding conveyor belt 1 is a belt weighing feeder. Setting the feeding conveyor belt 1 as a belt weighing feeder can measure the total amount of sludge fed, which is convenient for subsequent data statistics and calculation.

[0035] like Figure 5As shown, the feed conveyor belt 1 can be replaced by a sludge conveying pipe 15. The discharge end of the sludge conveying pipe 15 is connected to the feed end of the screw conveyor 2. The feed end of the sludge conveying pipe 15 is connected to the discharge end of the silo 16. The discharge end of the silo 16 is equipped with a sludge pump 17 connected to the sludge conveying pipe 15.

[0036] The working process of this utility model is as follows: When using this mechanism, the sludge raw material is transported to the screw conveyor 2 via the feeding conveyor belt 1. The feeding conveyor belt 1 measures the total amount of sludge fed. At the same time, the screw conveyor 2 and the distribution guide box 3 cooperate with the distribution channel 6 in the distribution guide box 3 to evenly transport the sludge to the feeding end of the extrusion box 4. The sludge at the feeding end of the extrusion box 4 is squeezed by the extrusion guide roller 7, so that the sludge thickness at the discharge end of the extrusion box 4 is uniform. At the same time, the electric push rod 12 on the material discharge box 5 can drive the adjustment plate 11 to move and adjust the distance between it and the fixed plate 10, thereby completing the adjustment of the thickness of the cloth sludge.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A uniform material distribution mechanism for a sludge filter press, comprising a feed conveyor belt (1), characterized in that: The discharge end of the feeding conveyor belt (1) is provided with a screw conveyor (2), the feeding end of the screw conveyor (2) is located below the discharge end of the feeding conveyor belt (1), the discharge end of the screw conveyor (2) is equipped with a material distribution guide box (3), the discharge end of the material distribution guide box (3) is equipped with an extrusion box (4), and the lower part of the extrusion box (4) is equipped with a cloth discharge box (5). The discharge end of the material distribution guide box (3) is aligned with the inlet end of the extrusion box (4). The material distribution guide box (3) is provided with multiple material distribution channels (6), and the discharge ends of the multiple material distribution channels (6) are of equal width. The discharge end of the extrusion box (4) is aligned with the feed end of the fabric discharge box (5). A rotatable extrusion guide roller (7) is installed inside the extrusion box (4). A motor (8) is installed on the extrusion box (4). The power output end of the motor (8) extends into the extrusion box (4) and is connected to the extrusion guide roller (7).

2. The uniform material distribution mechanism for a sludge filter press according to claim 1, characterized in that: A fixed plate (10) is installed on one side of the discharge end of the fabric discharge box (5), an adjusting plate (11) is installed on the side of the fabric discharge box (5) away from the fixed plate (10), an electric push rod (12) is installed on one side of the fabric discharge box (5), and the telescopic end of the electric push rod (12) extends into the fabric discharge box (5) and connects with the adjusting plate (11).

3. The uniform material distribution mechanism for a sludge filter press according to claim 2, characterized in that: The fabric discharge box (5) is provided with a chute (13), and the adjusting plate (11) is equipped with a slider (14) that is slidably connected to the chute (13).

4. The uniform material distribution mechanism for a sludge filter press according to claim 2, characterized in that: Both the fixed plate (10) and the adjusting plate (11) are equipped with inclined parts that tilt towards the fabric discharge box (5).

5. The uniform material distribution mechanism for a sludge filter press according to claim 1, characterized in that: The extrusion box (4) is equipped with a scraper (9) corresponding to the extrusion guide roller (7).

6. The uniform material distribution mechanism for a sludge filter press according to claim 1, characterized in that: The feeding conveyor belt (1) is a belt weighing feeder.