Sludge solidification treatment device

Abstract

The invention discloses a sludge solidification treatment device which comprises a base and a conical seat, the conical seat is connected with the base, the surface of the conical seat is sleeved with a plurality of annular pipes abutting against the conical seat, pipelines communicated with the annular pipes are arranged between the annular pipes, and the pipelines are evenly laid along the periphery of the conical seat. The uppermost annular pipe is used for introducing an external high-concentration fluid medium, a plurality of slots are formed in the surfaces of the annular pipes and the pipeline, semi-permeable membranes are arranged in the slots and are respectively connected with the annular pipes and the pipeline, and a plurality of water absorption layers connected with the annular pipes and the pipeline are arranged on the peripheries of the annular pipes and the pipeline. The water absorption layer abuts against the semi-permeable membrane, an outer shell is arranged on the periphery of the conical seat, and the outer shell abuts against the base, the device can rapidly reduce the water content of a large amount of sludge in a short time, meanwhile, excessive energy loss cannot be generated, the difficulty of the subsequent physical drying process is reduced, and the drying and curing cost is remarkably reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge solidification, and particularly relates to a sludge solidification treatment device. Background Art

[0002] Sludge solidification is a method of converting sludge with high water content and strong fluidity into solid materials through physical, chemical or biological means, which is widely used in the resource utilization field of environmental governance. Common physical means are physical dehydration through heating, centrifugation, compression, etc. The dehydration effect is better, but the energy consumption is high, and the equipment investment, energy consumption during long-term use and operation cost are relatively high; while using the method of natural air drying, it is extremely difficult to achieve natural air drying in the rainy and humid weather in the south. At the same time, due to the dense film formed on the surface of the sludge, it will also significantly limit the air drying of the underlying sludge in the pile, affecting the drying effect. If the thickness of the spread sludge is small, although the air drying effect can be better, the required laying area is extremely large, and a large amount of work will be generated during laying and recovery, and the efficiency is extremely low. Summary of the Invention

[0003] Aiming at the above-mentioned existing problems, the technical problem to be solved by the present invention is to provide a sludge solidification treatment device that can quickly reduce the water content of a large amount of sludge in a short time, without excessive energy loss, reduce the difficulty of subsequent physical drying process, and significantly reduce the drying and solidification cost.

[0004] The present invention provides a sludge solidification treatment device, including a base and a conical seat. The conical seat is connected to the base. A plurality of annular pipes in contact with the conical seat are sleeved on the surface of the conical seat. Pipes communicating with each other are provided between the annular pipes. The pipes are evenly laid along the outer circumference of the conical seat. The annular pipe at the uppermost position is used to introduce an external high-concentration fluid medium. A plurality of slots are provided on the surfaces of the annular pipes and the pipes. Semi-permeable membranes are provided in the slots, and the semi-permeable membranes are respectively connected to the annular pipes and the pipes. A plurality of water absorption layers connected thereto are provided on the outer circumferences of the annular pipes and the pipes, and the water absorption layers are in contact with the semi-permeable membranes. An outer shell is provided on the outer circumference of the conical seat, and the outer shell is in contact with the base. The cross-section of the inner cavity of the outer shell is trapezoidal, and a feed inlet is provided at the top of the outer shell, and the feed inlet is communicated with the inner cavity.

[0005] Preferably, a box body is provided outside the outer shell, the bottom surface of the box body is inclined, and an outlet is provided at the bottom of the box body.

[0006] Preferably, an external connection pipe is provided at the top of the annular pipe and is communicated therewith. The external connection pipe passes through the feed port and is used for externally connecting a high-concentration fluid medium. A first hydraulic cylinder is provided at the top of the external connection pipe. The telescopic end of the first hydraulic cylinder is connected to the external connection pipe, and the fixed end of the first hydraulic cylinder is fixedly connected to the top inside the box body. The first hydraulic cylinder is used for receiving an external control signal.

[0007] Preferably, a second hydraulic cylinder is further provided at the top inside the box body. The fixed end of the second hydraulic cylinder is fixedly connected to the top inside the box body, and the telescopic end of the second hydraulic cylinder is fixedly connected to the top of the outer shell. The second hydraulic cylinder is used for receiving an external control signal.

[0008] Preferably, a feed pipe is provided at the feed port. The feed pipe is located inside the feed port and is arranged in parallel with the external connection pipe.

[0009] Preferably, a driving motor is provided below the base. The output end of the driving motor is connected to the base. The driving motor is used for receiving an external control signal and is electrically connected to an external power supply.

[0010] Preferably, an annular plate fixedly connected thereto is provided at the bottom inside the box body. The annular plate is located on the outer periphery of the driving motor, and the top of the annular plate abuts against the bottom of the base.

[0011] Preferably, an annular groove is provided at the bottom of the base. A plurality of balls are provided in the annular groove, and the annular plate abuts against the balls.

[0012] Preferably, an external leading pipe is provided at the bottom of the lowermost annular pipe and is communicated therewith. The external leading pipe passes through the base and the box body, and the other end of the external leading pipe is provided with an evaporation pond communicated therewith.

[0013] Preferably, the water absorption layers are provided on both sides of the semi-permeable membrane, and the water absorption layers are fixedly connected to the annular pipe and the pipeline respectively.

[0014] The beneficial effects of the present invention are as follows:

[0015] A sludge solidification treatment device of the present invention introduces sludge with high water content into the gap between the conical seat and the inner cavity of the outer housing through the feed port. After the sludge completely fills the inner cavity, since the water content of the freshly dug sludge is extremely high, the water in the sludge will all fill the area at the bottom layer of the sludge under the action of gravity. The water-absorbing layer separates the sludge from the semi-permeable membrane, preventing the semi-permeable membrane from being directly blocked and affecting the flow of water between the semi-permeable membranes. Moreover, through the action of the water-absorbing layer, it can prevent the sludge from squeezing the semi-permeable membrane and causing damage to the semi-permeable membrane, and can also prevent the semi-permeable membrane from being overly squeezed and causing local blockage in the pipeline or the annular pipe, thereby ensuring that the high-concentration fluid medium in the pipeline or the annular pipe can flow normally. Since the water-absorbing layer can fully absorb the water in the sludge and make the absorbed water directly contact the semi-permeable membrane, and the high-concentration fluid medium constantly flowing in the annular pipe and the pipeline can accelerate the introduction of the water in the water-absorbing layer into the annular pipe and the pipeline. Due to the grid structure formed between the annular pipe and the pipeline, and the water in each separated sludge layer can be introduced into the annular pipe and the pipeline from four directions respectively, it further enables each separated sludge area to effectively reduce the water conduction distance, greatly reducing the water conduction speed. Moreover, since the high-concentration fluid medium in the annular pipe and the pipeline is always in a flowing state, the concentration difference between the semi-permeable membranes can always be kept at a large gap, which is more conducive to the high-concentration fluid medium in the annular pipe and the pipeline to export the remaining water in the sludge. And under the action of gravity and the continuous water absorption and dehydration state of the water-absorbing layer, the water can penetrate downward under the action of gravity, so that the dense film formed on the surface of the sludge will not overly restrict the penetration of water, thus enabling the water to be more quickly introduced into the annular pipe and the pipeline, effectively reducing the water content of the sludge, reducing energy consumption and the difficulty of solidification in the subsequent physical solidification process, and significantly reducing the large-scale sludge drying and solidification cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only the preferred embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 The front view of a partially cut-open sludge solidification treatment device of the present invention;

[0018] Figure 2It is a sectional view of a partial structure of a device for treating and solidifying sludge according to the present invention;

[0019] Figure 3 It is a sectional view of the annular pipe of a device for treating and solidifying sludge according to the present invention;

[0020] Figure 4 It is a sectional view of the pipe of a device for treating and solidifying sludge according to the present invention.

[0021] In the figure, 1 is a base, 2 is a conical seat, 3 is an annular pipe, 4 is a pipe, 5 is a slot, 6 is a semi-permeable membrane, 7 is a water absorption layer, 8 is a housing, 9 is a feed inlet, 10 is an inner cavity, 11 is a box body, 12 is an outlet, 13 is an external connection pipe, 14 is a first hydraulic cylinder, 15 is a second hydraulic cylinder, 16 is a feed pipe, 17 is a drive motor, 18 is an annular plate, 19 is an annular groove, 20 is a ball, 21 is an external lead pipe, and 22 is an evaporation pond. Detailed implementation manners

[0022] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention will be further described in conjunction with the accompanying drawings.

[0023] See Figures 1 to 4, the present invention provides a sludge solidification treatment device, including a base 1 and a conical seat 2. The conical seat 2 is connected to the base 1. A number of annular pipes 3 are sleeved on the surface of the conical seat 2 and are in contact with it. A pipe 4 is provided between the annular pipes 3 and is in communication with them. The pipe 4 is evenly laid along the outer circumference of the conical seat 2. The annular pipe 3 at the uppermost position is used to introduce an external high-concentration fluid medium. A number of slots 5 are provided on the surfaces of the annular pipe 3 and the pipe 4. A semi-permeable membrane 6 is provided in the slots 5. The semi-permeable membrane 6 is respectively connected to the annular pipe 3 and the pipe 4. A number of water-absorbing layers 7 connected to them are provided on the outer circumferences of the annular pipe 3 and the pipe 4. The water-absorbing layer 7 is in contact with the semi-permeable membrane 6. An outer housing 8 is provided on the outer circumference of the conical seat 2. The outer housing 8 is in contact with the base 1. The cross-section of the inner cavity 10 of the outer housing 8 is trapezoidal. A feed inlet 9 is provided at the top of the outer housing 8. The feed inlet 9 is in communication with the inner cavity 10. The sludge with high water content is introduced into the gap between the conical seat 2 and the inner cavity 10 of the outer housing 8 through the feed inlet 9. After the sludge completely fills the inner cavity 10, since the freshly dug sludge has extremely high water content, the water in the sludge will all fill the area at the bottom layer of the sludge under the action of gravity. The water-absorbing layer 7 separates the sludge from the semi-permeable membrane 6, avoiding direct blockage of the semi-permeable membrane 6 and affecting the flow of water between the semi-permeable membranes 6. Moreover, through the action of the water-absorbing layer 7, it can also prevent the sludge from squeezing the semi-permeable membrane 6 and causing damage to the semi-permeable membrane 6, and can also prevent the semi-permeable membrane 6 from being overly squeezed and causing local blockage of the pipe 4 or the annular pipe 3, thereby ensuring the normal flow of the high-concentration fluid medium in the pipe 4 or the annular pipe 3. Since the water-absorbing layer 7 can fully absorb the water in the sludge and make the absorbed water directly contact with the semi-permeable membrane 6, and the high-concentration fluid medium constantly flowing in the annular pipe 3 and the pipe 4 can accelerate the introduction of the water in the water-absorbing layer 7 into the annular pipe 3 and the pipe 4. Due to the grid structure formed between the annular pipe 3 and the pipe 4, and the water in each separated sludge layer can be introduced into the annular pipe 3 and the pipe 4 from four directions respectively, it further enables each separated sludge area to effectively reduce the water conduction distance and greatly reduce the water conduction speed. Moreover, since the high-concentration fluid medium in the annular pipe 3 and the pipe 4 is always in a flowing state, the concentration difference between the semi-permeable membranes 6 can always be kept at a large gap, which is more conducive to the high-concentration fluid medium in the annular pipe 3 and the pipe 4 to export the remaining water in the sludge. And under the action of gravity and the continuous water absorption and dehydration state of the water-absorbing layer 7, the water can penetrate downward under the action of gravity, so that the dense film formed on the surface of the sludge will not overly limit the penetration of water.Thus, water can be more quickly introduced into the annular pipe 3 and the pipe 4, which can effectively reduce the water content of the silt, reduce energy consumption and the difficulty of solidification in the subsequent physical solidification process, and significantly reduce the large-scale silt drying and solidification cost.

[0024] Specifically, a box body 11 is provided outside the outer shell 8. The bottom surface of the box body 11 is inclined, and an outlet 12 is provided at the bottom of the box body 11. Due to the structural shape of the box body 11, it is beneficial to export the preliminarily dried silt.

[0025] Specifically, an external connection pipe 13 is provided at the top of the annular pipe 3 and is connected to it. The external connection pipe 13 passes through the feed inlet 9. The external connection pipe 13 is used to externally connect a high-concentration fluid medium. A first hydraulic cylinder 14 is provided at the top of the external connection pipe 13. The telescopic end of the first hydraulic cylinder 14 is connected to the external connection pipe 13, and the fixed end of the first hydraulic cylinder 14 is fixedly connected to the top inside the box body 11. The first hydraulic cylinder 14 is used to receive an external control signal. Through the action of the external connection pipe 13, the high-concentration fluid medium can be continuously introduced into the annular pipe 3 and the pipe 4, and thus the continuous dewatering work of the silt can be facilitated. Through the action of the first hydraulic cylinder 14, the external connection pipe 13, the annular pipe 3 and the pipe 4 can be lifted simultaneously, so that the soil on their surfaces can fall off, which is beneficial to the dewatering work of the next round of silt. When the dewatering work of the next round of silt needs to be carried out, the first hydraulic cylinder 14 can be reset to make the annular pipe 3 and the pipe 4 contact the conical seat 2 again.

[0026] Specifically, a second hydraulic cylinder 15 is also provided at the top inside the box body 11. The fixed end of the second hydraulic cylinder 15 is fixedly connected to the top inside the box body 11, and the telescopic end of the second hydraulic cylinder 15 is fixedly connected to the top of the outer shell 8. The second hydraulic cylinder 15 is used to receive an external control signal. Through the cooperation between the second hydraulic cylinder 15 and the outer shell 8, the outer shell 8 can be lifted, so that the external connection pipe 13, the annular pipe 3 and the pipe 4 are exposed simultaneously, and thus the preliminarily dewatered silt can slide down from the external connection pipe 13, the annular pipe 3 and the pipe 4 on the conical seat 2. When the dewatering work of the next round of silt needs to be carried out, the second hydraulic cylinder 15 can be reset.

[0027] Specifically, a feed pipe 16 is provided at the feed inlet 9. The feed pipe 16 is located inside the feed inlet 9 and is arranged in parallel with the external connection pipe 13. Through the feed pipe 16, the silt can be conveniently introduced into the inner cavity 10.

[0028] Specifically, a drive motor 17 is provided under the base 1, and a fixed seat can be provided at the bottom of the drive motor 17. The bottom of the fixed seat is fixedly connected to the inner wall of the box body 11, and the output end of the drive motor 17 is connected to the base 1. The drive motor 17 is used to receive external control signals. The drive motor 17 is electrically connected to an external power supply. When the outer shell 8 is separated from the base 1, and the external pipe 13, the annular pipe 3 and the pipe 4 are separated from the conical seat, the base 1 can be driven to rotate by the drive motor 17, thereby effectively reducing the soil on the base 1 and the surface of the conical seat under the action of centrifugal force.

[0029] Specifically, an annular plate 18 is fixedly connected to the bottom of the box body 11. The annular plate 18 is located on the outer periphery of the drive motor 17. The top of the annular plate 18 abuts against the bottom of the base 1. Through the action of the annular plate 18, the drive motor 17 can be prevented from being affected by water and mud, thereby preventing the service life of the drive motor 17 from being affected by water and mud, and at the same time ensuring the normal use of the drive motor 17.

[0030] Specifically, an annular groove 19 is provided at the bottom of the base 1, and a plurality of balls 20 are provided in the annular groove 19. The annular plate 18 abuts against the balls 20. Through the cooperation of the annular groove 19, the balls 20 and the annular plate 18, the base 1 can rotate more stably and reliably, and at the same time, water or mud can be prevented from entering the annular plate 18 as much as possible.

[0031] Specifically, an external lead pipe 21 is provided at the bottom of the annular tube 3 at the bottom, which is connected thereto. The external lead pipe 21 passes through the base 1 and the box body 11. The other end of the external lead pipe 21 is provided with an evaporation pool 22 connected thereto. Through the cooperation of the external lead pipe 21 and the evaporation pool 22, the high-concentration fluid medium after dehydration can enter the evaporation pool 22, so that the diluted high-concentration fluid medium is naturally evaporated through the evaporation pool 22, so that the evaporated high-concentration fluid medium can be reused, and the use effect is better.

[0032] Specifically, the water absorption layer 7 is provided on both sides of the semipermeable membrane 6, and the water absorption layer 7 is fixedly connected to the annular tube 3 and the pipeline 4 respectively. Through the setting of the water absorption layer 7, it can not only effectively support the semipermeable membrane 6 to prevent its deformation and affect normal use, but also isolate silt to ensure its high efficiency and reliability.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sludge solidification treatment device, characterized in that, It includes a base and a conical seat. The conical seat is connected to the base. A number of annular tubes that are in contact with it are sleeved on the surface of the conical seat. A pipeline that is connected to them is provided between the annular tubes. The pipeline is evenly laid along the outer circumference of the conical seat. The annular tube at the uppermost position is used to introduce an external high-concentration fluid medium. A number of slotted openings are provided on the surfaces of the annular tube and the pipeline. A semi-permeable membrane is provided in the slotted openings. The semi-permeable membrane is respectively connected to the annular tube and the pipeline. A number of water-absorbing layers connected to them are provided on the outer circumferences of the annular tube and the pipeline. The water-absorbing layer is in contact with the semi-permeable membrane. An outer housing is provided on the outer circumference of the conical seat. The outer housing is in contact with the base. The cross-section of the inner cavity of the outer housing is trapezoidal. A feed inlet is provided at the top of the outer housing. The feed inlet is connected to the inner cavity.

2. The sludge solidification treatment device according to claim 1, characterized in that, An outer box is provided outside the outer housing. The bottom surface of the outer box is inclined. An outlet is provided at the bottom of the outer box.

3. The split-flow flocculation device according to claim 2, wherein An outer connection pipe connected to it is provided at the top of the annular tube. The outer connection pipe passes through the feed inlet. The outer connection pipe is used to connect to an external high-concentration fluid medium. A first hydraulic cylinder is provided at the top of the outer connection pipe. The telescopic end of the first hydraulic cylinder is connected to the outer connection pipe. The fixed end of the first hydraulic cylinder is fixedly connected to the top inside the outer box. The first hydraulic cylinder is used to receive an external control signal.

4. A sludge solidification treatment device according to claim 2, characterized in that, A second hydraulic cylinder is further provided at the top inside the outer box. The fixed end of the second hydraulic cylinder is fixedly connected to the top inside the outer box. The telescopic end of the second hydraulic cylinder is fixedly connected to the top of the outer housing. The second hydraulic cylinder is used to receive an external control signal.

5. A sludge solidification treatment device according to claim 3, characterized in that, A feed pipe is provided at the feed inlet. The feed pipe is located inside the feed inlet. The feed pipe is arranged in parallel with the outer connection pipe.

6. A sludge solidification treatment device according to claim 2, characterized in that, A driving motor is provided below the base. The output end of the driving motor is connected to the base. The driving motor is used to receive an external control signal. The driving motor is electrically connected to an external power supply.

7. A sludge solidification treatment device according to claim 6, characterized in that, An annular plate fixedly connected to it is provided at the bottom inside the outer box. The annular plate is located on the outer circumference of the driving motor. The top of the annular plate is in contact with the bottom of the base.

8. A sludge solidification treatment device according to claim 7, characterized in that, An annular groove is provided at the bottom of the base. A number of ball bearings are provided in the annular groove. The annular plate is in contact with the ball bearings.

9. The sludge solidification treatment device according to claim 7, characterized in that, An outer leading pipe connected to it is provided at the bottom of the annular tube at the lowermost position. The outer leading pipe passes through the base and the outer box. The other end of the outer leading pipe is connected to an evaporation pond connected to it.

10. A sludge solidification treatment device according to claim 1, characterized in that, The water-absorbing layers are provided on both sides of the semi-permeable membrane. The water-absorbing layers are respectively fixedly connected to the annular tube and the pipeline.

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