Concentration and dehydration treatment all-in-one machine device for waste mud in foundation engineering construction

Abstract

The invention belongs to the technical field of sludge treatment, and particularly relates to a foundation engineering construction waste slurry concentration and dehydration treatment all-in-one machine device which comprises a box body, a hopper is arranged at the top of the box body, a stirring chamber, a screening chamber and a storage chamber are arranged in the box body, a filter press is arranged below the box body, and a slurry outlet pipe is installed at the bottom of the storage chamber. A vibrating screen is fixedly connected into the screening chamber and comprises a screen mesh and a plurality of vibrating motors installed on the screen mesh, an opening is formed in the position, behind the vibrating screen, of the box body, and a sealing plate capable of moving downwards is arranged in the opening. And a material pushing rod capable of moving in the horizontal direction and pushing the sealing plate downwards is arranged on the screen. In the screening process, the pushing rod can regularly reciprocate once to push large-particle gravel on the screen to the sealing plate to force the sealing plate to move downwards to expose the opening, so that the gravel is pushed out of the opening, and the screen is prevented from being blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, and particularly to an integrated device for concentrated dehydration treatment of waste slurry generated during the construction of foundation engineering. Background Art

[0002] During the construction of foundation engineering, a large amount of waste slurry will be generated. If these slurries are not effectively treated, they will not only occupy a large amount of land resources, but also may cause pollution to the surrounding environment, such as soil compaction, water eutrophication, etc. At present, the common treatment methods for waste slurry mainly include natural drying, mechanical dewatering, etc. The natural drying treatment cycle is long, and it is greatly affected by factors such as weather and site, and it is difficult to meet the requirements of the project progress.

[0003] Traditional mechanical dewatering equipment has a single function and often requires multiple independent devices to cooperate. It not only occupies a large area, the connection operation between devices is cumbersome, and the treatment efficiency is low. In addition, during the slurry screening process, the screen is easily blocked by large-particle sand and gravel, resulting in a decline in the screening effect, and frequent manual cleaning is required, increasing the labor cost and maintenance difficulty. Therefore, corresponding improvements are made to solve this problem. Summary of the Invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes an integrated device for concentrated dehydration treatment of waste slurry generated during the construction of foundation engineering.

[0005] An integrated device for concentrated dehydration treatment of waste slurry generated during the construction of foundation engineering proposed by the present invention includes a box body. A hopper is provided at the top of the box body. Inside the box body, there are a stirring chamber, a screening chamber, and a storage chamber distributed from top to bottom. A filter press is arranged below the box body. An outlet pipe is installed at the bottom of the storage chamber. The outlet pipe and the feed end of the filter press are connected by a slurry pump. A vibrating screen is fixedly connected inside the screening chamber. The vibrating screen includes a screen and a plurality of vibrating motors installed on the screen. An opening is provided at the position of the box body behind the vibrating screen, and a sealing plate that can move downward is arranged inside the opening. A pushing rod is arranged on the screen, which can move horizontally and push the sealing plate downward. The waste slurry is introduced into the hopper, and then the waste slurry first enters the stirring chamber for stirring, and then enters the screening chamber for screening through the vibrating screen to screen out large-particle sand and gravel in the slurry. Then, the slurry that meets the particle size enters the storage chamber. Then, the slurry pump pumps the slurry into the filter press through the outlet pipe for dehydration treatment, and separates out the mud cake. During the screening process, the pushing rod will reciprocate regularly once to push the large-particle sand and gravel on the screen towards the sealing plate. Then, the pushing rod forces the sealing plate to move downward, exposing the opening, so as to push the sand and gravel out of the opening and prevent the screen from being blocked.

[0006] Preferably, the sealing plate is slidably connected in the opening, and a plurality of springs are fixedly connected to the bottom wall of the opening. The top ends of the springs are respectively fixedly connected to the sealing plate, and an inclined portion is provided at the top end of the sealing plate. The sealing plate can move downward under the action of the pushing rod, and when the pushing rod resets, it will reset and move upward under the action of the spring to close the opening again.

[0007] Preferably, a screw rod is rotatably connected in the screening chamber. The screw rod is threadedly connected to the pushing rod, and the pushing rod is slidably connected to the screen. The end of the screw rod is connected to the output shaft of the first motor, and the first motor is fixedly connected to the box body. A top head capable of contacting the inclined portion is provided on one side of the pushing rod close to the sealing plate. The top head on the pushing rod will push the sealing plate downward by pressing the inclined portion, so that the opening is exposed.

[0008] Preferably, the pushing rod is of an arc-shaped structure. When the pushing rod reciprocates, the arc-shaped structure can be used to push the slurry on both sides of the middle position, so that the slurry is evenly dispersed on the screen, thereby improving the screening efficiency.

[0009] Preferably, a stirring assembly is arranged in the stirring chamber, and a plurality of discharge pipes leading to the screening chamber are installed at the bottom of the stirring chamber. A locking valve is installed on the discharge pipe. The waste slurry in the stirring chamber is stirred by the stirring assembly. After stirring is completed, the locking valve is opened, and the slurry can enter the screening chamber through the discharge pipe.

[0010] Preferably, the stirring assembly includes a stirring frame and a second motor. The stirring frame is located in the stirring chamber and is rotatably connected to the box body. The second motor is fixedly connected to the box body, and the output shaft of the second motor is fixedly connected to the end of the stirring frame. The output shaft of the second motor drives the stirring frame to rotate, and the waste slurry in the stirring chamber can be stirred.

[0011] Preferably, it further includes a control system composed of the following modules:

[0012] Sensor module: Collect the amplitude A, frequency F of the vibration motor, and the pressure P of the screen.

[0013] Control module: Built-in data processor, receiving the data of each sensor module, analyzing and processing it in real time, and generating three-level execution commands.

[0014] Execution module: Adjust the working frequency and power of the vibration motor according to the command.

[0015] Preferably, the specific process of the control module analyzing and processing the data is as follows:

[0016] Step 1: Data acquisition and preprocessing

[0017] Set the monitoring time zone T, collect sensor data within the period t ∈ T, and then calculate the mean value of each parameter:

[0018]

[0019] F avg (t), P avg (t) Calculate similarly;

[0020] Calculate the variance and range:

[0021]

[0022] Step 2: Normalization and comprehensive parameter calculation

[0023] To A avg 、F avg , ΔP is normalized min-max to obtain A norm ,F norm ,P norm ;

[0024] Weighted calculation of screening parameter value SP:

[0025] SP=αA norm +βF norm +γP norm (α+β+γ=1)

[0026] Step 3: Execute decision logic

[0027] The preset threshold groups Sa, Sb, and Sc generate different commands based on SP:

[0028] If ≤ SP <Sa,生成低频筛分信令E1;

[0029] If Sa≤SP <Sb,生成常规筛分信令E2;

[0030] If Sb≤SP <Sc,生成高频筛分信令E3;

[0031] Step 4: Dynamic power control

[0032] Calculate the theoretical mechanical energy demand Q using the formula (m: mud mass, v: flow velocity, ω: angular frequency), calculate the actual power demand P, using the formula (η: transmission efficiency, cosφ: power factor), determine the number of activated vibration motors n i , using the formula (k i : E / E / E corresponding coefficient, p: rated power of vibration motor).

[0033] Preferably, the control system further comprises:

[0034] A data storage module for storing the amplitude, frequency of the vibration motor, the pressure data of the sieve mesh, the screening signaling, and the activation quantity of the corresponding vibration motor.

[0035] A user access module for accessing the information stored in the data storage module.

[0036] A communication module for realizing data synchronization among the sensor module, the control module, and the execution module.

[0037] Compared with the prior art, the present invention provides a device for integrated treatment of waste mud concentration and dehydration in foundation engineering construction, having the following beneficial effects:

[0038] 1. In a device for integrated treatment of waste mud concentration and dehydration in foundation engineering construction, by setting structures such as a pushing rod, a sealing plate, and an opening, the pushing rod reciprocates regularly to push the large-particle sand and gravel on the sieve mesh towards the sealing plate, and forces the sealing plate to move downward to open the opening, discharging the sand and gravel. This effectively avoids sieve mesh blockage, ensures the continuity and high efficiency of screening, reduces the frequency and workload of manual sieve mesh cleaning, and lowers the maintenance cost.

[0039] 2. In a device for integrated treatment of waste mud concentration and dehydration in foundation engineering construction, the pushing rod adopts an arc-shaped structure, which can discharge the mud gathered at the middle position of the sieve mesh to both sides during the reciprocating movement, making the mud evenly dispersed on the sieve mesh, thereby improving the screening efficiency and quality, and ensuring that more mud meeting the particle size requirements enters the subsequent treatment process.

[0040] 3. In a device for integrated treatment of waste mud concentration and dehydration in foundation engineering construction, the control system collects data such as the amplitude, frequency of the vibration motor, and the pressure of the sieve mesh in real time through the sensor module. The control module analyzes and processes the data to generate three-level execution commands, and the execution module adjusts the working frequency and power of the vibration motor according to the commands, realizing intelligent dynamic control of the mud screening process. It can automatically adjust the screening parameters according to the actual situation of the mud, ensure the screening effect, optimize the energy consumption of equipment operation, and improve the intelligent level and operation stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of a device for integrated treatment of waste mud concentration and dehydration in foundation engineering construction proposed by the present invention;

[0042] Figure 2 It is a schematic diagram of the internal structure of a device for integrated treatment of waste mud concentration and dehydration in foundation engineering construction proposed by the present invention;

[0043] Figure 3Schematic diagram of the screen structure of a device for concentrating and dehydrating waste slurry in foundation engineering construction proposed by the present invention;

[0044] Figure 4 Schematic diagram of the installation structure of the sealing plate of a device for concentrating and dehydrating waste slurry in foundation engineering construction proposed by the present invention;

[0045] Figure 5 For the present invention Figure 4 Enlarged structure schematic diagram at position A;

[0046] Figure 6 Block diagram of the control system of a device for concentrating and dehydrating waste slurry in foundation engineering construction proposed by the present invention.

[0047] In the figure: 1, box body; 2, mixing chamber; 3, screening chamber; 4, storage chamber; 5, hopper; 6, filter press; 7, slurry outlet pipe; 8, slurry pump; 9, screen; 10, opening; 11, sealing plate; 12, inclined part; 13, pushing rod; 14, top head; 15, first motor; 16, screw; 17, spring; 18, vibration motor; 19, mixing frame; 20, second motor; 21, discharge pipe. Specific embodiments

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0049] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0050] Refer to Figures 1-6, a device for concentrated dewatering treatment of waste slurry in foundation engineering construction, comprising a box body 1. A hopper 5 is provided at the top of the box body 1. Inside the box body 1, there are a stirring chamber 2, a screening chamber 3 and a storage chamber 4 distributed from top to bottom. A filter press 6 is arranged below the box body 1. An outlet pipe 7 is installed at the bottom of the storage chamber 4. The outlet pipe 7 and the feed end of the filter press 6 are connected by a slurry pump 8. A vibrating screen is fixedly connected inside the screening chamber 3. The vibrating screen includes a screen mesh 9 and a plurality of vibrating motors 18 installed on the screen mesh 9. An opening 10 is formed in the position of the box body 1 behind the vibrating screen. A sealing plate 11 capable of moving downward is arranged inside the opening 10. A pushing rod 13 capable of moving horizontally along the screen mesh 9 and pushing the sealing plate 11 downward is arranged on the screen mesh 9;

[0051] During use, the waste slurry is introduced into the hopper 5. Then the waste slurry first enters the stirring chamber 2 for stirring, and then enters the screening chamber 3 to be screened by the vibrating screen to screen out large-particle sand and gravel in the slurry. Then the slurry meeting the particle size enters the storage chamber 4. Then the slurry pump 8 pumps the slurry into the filter press 6 through the outlet pipe 7 for dehydration treatment and separates out the mud cake. During the screening process, the pushing rod 13 will reciprocate regularly once, pushing the large-particle sand and gravel on the screen mesh 9 towards the sealing plate 11. Then the pushing rod 13 forces the sealing plate 11 to move downward, exposing the opening 10, so as to push out the sand and gravel from the opening 10 and prevent the screen mesh 9 from being blocked.

[0052] Among them, the sealing plate 11 is slidably connected inside the opening 10, and a plurality of springs 17 are fixedly connected to the bottom wall of the opening 10. The top ends of the springs 17 are respectively fixedly connected to the sealing plate 11. An inclined portion 12 is provided at the top end of the sealing plate 11;

[0053] During use, the sealing plate 11 can move downward under the action of the pushing rod 13. When the pushing rod 13 resets, it will reset and move upward under the action of the spring 17 to close the opening 10 again.

[0054] Among them, a screw rod 16 is rotatably connected inside the screening chamber 3. The screw rod 16 is threadedly connected to the pushing rod 13. The pushing rod 13 is slidably connected to the screen mesh 9. And the end of the screw rod 16 is connected to the output shaft of a first motor 15. The first motor 15 is fixedly connected to the box body 1. A top head 14 capable of contacting the inclined portion 12 is provided on the side of the pushing rod 13 close to the sealing plate 11;

[0055] During use, the top head 14 on the pushing rod 13 will push the sealing plate 11 downward by squeezing the inclined portion 12, so that the opening 10 is exposed.

[0056] Furthermore, the pushing rod 13 is of an arc-shaped structure;

[0057] During use, when the pusher rod 13 reciprocates, the arc-shaped structure can be used to push the mud gathered in the middle position to both sides, so that the mud is evenly dispersed on the screen 9, thereby improving the screening efficiency.

[0058] Among them, a stirring assembly is arranged in the stirring chamber 2, and a plurality of discharge pipes 21 leading to the screening chamber 3 are installed at the bottom of the stirring chamber 2, and a locking valve is installed on the discharge pipe 21;

[0059] During use, the waste mud in the stirring chamber 2 is stirred by the stirring assembly. After stirring, the locking valve is opened, and the mud can enter the screening chamber 3 through the discharge pipe 21.

[0060] Among them, the stirring assembly includes a stirring frame 19 and a second motor 20. The stirring frame 19 is located in the stirring chamber 2 and is rotationally connected to the box body 1. The second motor 20 is fixedly connected to the box body 1, and the output shaft of the second motor 20 is fixedly connected to the end of the stirring frame 19;

[0061] During use, the output shaft of the second motor 20 drives the stirring frame 19 to rotate, so that the waste mud in the stirring chamber 2 can be stirred.

[0062] In another embodiment, it further includes a control system composed of the following modules:

[0063] Sensor module: Collect the amplitude A, frequency F of the vibration motor 18, and the pressure P of the screen 9;

[0064] Control module: Built-in data processor, receive the data of each sensor module, analyze and process it in real time, and generate three-level execution commands;

[0065] Execution module: Adjust the working frequency and power of the vibration motor 18 according to the command.

[0066] Among them, the specific process of the control module analyzing and processing the data is as follows:

[0067] Step 1: Data acquisition and preprocessing

[0068] Set the monitoring time zone T, collect sensor data within the period t∈T, and then calculate the mean value of each parameter:

[0069]

[0070] F avg (t), P avg (t) is calculated in the same way;

[0071] Calculate the variance and range: ]>

[0072]

[0073] Step 2: Normalization and Comprehensive Parameter Calculation

[0074] Perform min-max normalization on A avg , F avg , and ΔP to obtain A norm , F norm , P norm ;

[0075] Calculate the screening parameter value SP by weighted calculation:

[0076] SP = αA norm + βF norm + γP norm (α + β + γ = 1)

[0077] Step 3: Execute Decision Logic

[0078] Preset threshold groups Sa, Sb, Sc, and generate different commands according to SP:

[0079] If 0 ≤ SP < Sa, generate a low-frequency screening signal E1;

[0080] If Sa ≤ SP < Sb, generate a conventional screening signal E2;

[0081] If Sb ≤ SP < Sc, generate a high-frequency screening signal E3;

[0082] Step 4: Power Dynamic Regulation

[0083] Calculate the theoretical mechanical energy demand Q using the formula (m: mud mass, v: flow rate, ω: angular frequency), calculate the actual power demand P using the formula (η: transmission efficiency, cosφ: power factor), and determine the number n of activated vibration motors 18 i , using the formula (k i : coefficient corresponding to E1 / E2 / E3, p: rated power of vibration motor 18).

[0084] Among them, the control system also includes:

[0085] A data storage module for storing the amplitude, frequency, pressure data of the screen 9, screening signals, and the corresponding number of activated vibration motors 18;

[0086] A user access module for accessing the information stored in the data storage module;

[0087] A communication module for realizing data synchronization among the sensor module, control module, and execution module.

[0088] Working principle: The waste mud is introduced into the integrated machine through the hopper 5. First, it is evenly stirred in the stirring chamber 2 by the cooperation of the stirring frame 19 and the second motor 20. Then, the locking valve of the discharge pipe 21 is opened, and the mud flows into the screening chamber 3. The vibrating motor 18 of the vibrating screen drives the screen mesh 9 to screen the mud, separating out large particles of sand and gravel. The arc-shaped pushing rod 13 reciprocates regularly, which can not only disperse the mud to improve the screening efficiency, but also push the sand and gravel to the sealing plate 11. The top 14 squeezes the inclined part 12 to make the sealing plate 11 move down to open the opening 10. After the sand and gravel are discharged, the spring 17 helps the sealing plate 11 reset to close the opening 10. The screened qualified mud enters the storage chamber 4, and then is transported to the filter press 6 by the mud pump 8 through the slurry outlet pipe 7 for dehydration to produce mud cakes. At the same time, the sensor module real-time collects the amplitude, frequency of the vibrating motor 18 and the pressure data of the screen mesh 9. The control module analyzes and processes according to the preset process, generates three-level screening signaling of low frequency, normal frequency, and high frequency. The execution module adjusts the working frequency and power of the vibrating motor 18 accordingly, and activates the number of motors as needed to achieve dynamic power regulation. The data storage module stores the relevant data, the user access module is for personnel to view, and the communication module ensures the data synchronization of each module to ensure the efficient and stable operation of the equipment.

[0089] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. An integrated device for concentrated dehydration treatment of waste slurry in foundation engineering construction, comprising a box body (1), characterized in that, A hopper (5) is provided at the top of the box body (1). Inside the box body (1), there are a stirring chamber (2), a screening chamber (3), and a storage chamber (4) distributed from top to bottom. A filter press (6) is provided below the box body (1). An outlet pipe (7) is installed at the bottom of the storage chamber (4). The outlet pipe (7) and the feed end of the filter press (6) are connected by a slurry pump (8). A vibrating screen is fixedly connected inside the screening chamber (3). The vibrating screen includes a screen mesh (9) and a plurality of vibrating motors (18) installed on the screen mesh (9). An opening (10) is formed in the position of the box body (1) behind the vibrating screen. A sealing plate (11) capable of moving downward is arranged inside the opening (10). A pushing rod (13) capable of moving horizontally along the screen mesh (9) and pushing the sealing plate (11) downward is arranged on the screen mesh (9).

2. The integrated device for concentrated dewatering treatment of waste slurry in foundation engineering construction according to claim 1, characterized in that, The sealing plate (11) is slidably connected inside the opening (10). A plurality of springs (17) are fixedly connected to the bottom wall of the opening (10). The top ends of the springs (17) are respectively fixedly connected to the sealing plate (11). An inclined portion (12) is provided at the top end of the sealing plate (11).

3. A device for concentrating and dehydrating waste slurry in the construction of foundation works according to claim 2, characterized in that, A screw rod (16) is rotatably connected inside the screening chamber (3). The screw rod (16) is threadedly connected to the pushing rod (13). The pushing rod (13) is slidably connected to the screen mesh (9). The end of the screw rod (16) is connected to the output shaft of a first motor (15). The first motor (15) is fixedly connected to the box body (1). A top head (14) capable of contacting the inclined portion (12) is provided on one side of the pushing rod (13) close to the sealing plate (11).

4. A device for concentrated dehydration treatment of waste slurry in foundation engineering construction according to claim 3, characterized in that, The pushing rod (13) is of an arc-shaped structure.

5. A device for concentrated dehydration treatment of waste slurry in foundation engineering construction according to claim 1, characterized in that, A stirring assembly is arranged inside the stirring chamber (2). A plurality of discharge pipes (21) leading to the screening chamber (3) are installed at the bottom of the stirring chamber (2). A locking valve is installed on the discharge pipe (21).

6. The integrated device for concentrated dewatering treatment of waste slurry in foundation engineering construction according to claim 5, wherein, The stirring assembly includes a stirring frame (19) and a second motor (20). The stirring frame (19) is located inside the stirring chamber (2) and is rotatably connected to the box body (1). The second motor (20) is fixedly connected to the box body (1). The output shaft of the second motor (20) is fixedly connected to the end of the stirring frame (19).

7. A device for concentrating and dehydrating waste slurry in the construction of foundation engineering according to claim 1, characterized in that, It also includes a control system composed of the following modules: Sensor module: Collect the amplitude A, frequency F of the vibrating motor (18), and the pressure P of the screen mesh (9); Control module: Built-in data processor, receive the data of each sensor module, analyze and process it in real time, and generate three-level execution commands; Execution module: Adjust the working frequency and power of the vibrating motor (18) according to the commands.

8. A device for concentrated dehydration treatment of waste slurry in foundation engineering construction according to claim 7, characterized in that, The specific process of the control module analyzing and processing the data is as follows: Step 1: Data acquisition and preprocessing Set the monitoring time zone T, collect sensor data within the period t∈T, and then calculate the mean value, variance, and range of each parameter; Step 2: Parameter normalization and comprehensive parameter calculation, and then calculate the screening parameter value SP by weighted calculation; Step 3: Execute the decision logic Preset threshold groups Sa, Sb, Sc, and generate different commands according to SP: If 0≤SP<Sa, generate a low-frequency screening signal E1; If Sa≤SP<Sb, generate a conventional screening signal E2; If Sb≤SP<Sc, generate a high-frequency screening signal E3; Step 4: Power dynamic regulation Calculate the theoretical mechanical energy requirement Q and the actual power requirement P, and determine the number n of activated vibration motors 18 i .

9. The integrated device for concentrated dehydration treatment of waste slurry in foundation engineering construction according to claim 8, characterized in that, In the said step 3: If 0 ≤ SP < Sa, generate a low-frequency screening signal E1; If Sa ≤ SP < Sb, generate a normal screening signal E2; If Sb ≤ SP < Sc, generate a high-frequency screening signal E3.

10. A device for integrated treatment of concentrated dewatering of waste slurry in foundation engineering construction according to claim 7, characterized in that, The said control system further includes: A data storage module, which is used for storing the amplitude and frequency of the vibration motor (18), the pressure data of the sieve mesh (9), the screening signal, and the number of activated vibration motors (18) corresponding thereto; A user access module, which is used for accessing the information stored in the data storage module; A communication module, which is used for realizing data synchronization among the sensor module, the control module, and the execution module.

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