Dehydration and solidification device for engineering waste slurry

Abstract

The utility model relates to an engineering waste mud dehydration solidification device, including: including: including: machine body, driving device, extrusion plate, pressure relief plate and pressure relief reset auxiliary device, the machine body is hollow inside, machine body shell is equipped with mud bag inlet and delivery port and drain hole, the driving device includes hydraulic jack, oil delivery pipe and oil pump station. The filter press disclosed by the utility model has the beneficial effects that the filter chamber consists of the machine body, the extrusion plate and the pressure unloading plate, the extrusion plate is directly pushed to extrude the mud bag by controlling the driving device, the filter pressing effect can be obviously improved, the mud bag is adopted in the filter pressing process, the process of cleaning filter cloth of the traditional filter press is reduced, and the operation is simplified; the whole slurry filter pressing process can be completed by controlling the driving device and the pressure relief reset auxiliary device, manual operation is reduced, and the filter pressing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmentally friendly treatment of waste mud, and in particular comprises a dehydration and solidification device for engineering waste mud. Background Art

[0002] Due to the influence of surrounding buildings, city center projects often have small construction sites and difficult material and equipment turnover. A large amount of mud will be generated during pile construction, subway tunnel construction, drilling construction, etc. The recovery and sedimentation of the mud pool alone is not enough to handle all the mud. The overflow will not only affect the image of civilized construction, but also the waste mud cannot be discharged directly, polluting the environment. Mud treatment has always been a major problem in engineering construction, and the selection of suitable mud treatment equipment has become the key. Among them, the advantage of the plate and frame mud filter press is that it does not occupy a large area, can completely separate solids and liquids, continuously discharge slag, and is not constrained by time.

[0003] A filter press is a liquid pressurizing and filtering and concentrating device that can be manually operated intermittently. The working principle of the filter press is to first press the mud into the sealed filter chamber through the pressure difference formed by the pressurizing equipment, and then form an internal and external pressure difference by squeezing the mud, so that the mud is filtered through the filter screen, leaving solid particulate matter, thereby achieving solid-liquid separation. The filter press is suitable for realizing the automatic separation of solids and liquids between various viscous suspensions. It is a relatively new, energy-saving, automatically controlled, and efficiently operated new type of mud separation and filtration equipment. It can automatically separate solids and water and is often used in the environmental protection treatment process of waste mud. The filtered clean water can be directly discharged into the clean water pool for secondary use. The remaining filter residue can be piled on site or transported out of the site for landfill.

[0004] The filter unit structure of the existing filter press is simple, and is simply composed of a plurality of filter chambers arranged closely together. The mud extrusion efficiency and discharge efficiency are relatively low. In addition, the existing filter press extrudes the mud indirectly by extruding the filter plate, and the extrusion effect is biased. Utility Model Content

[0005] The utility model aims to overcome the deficiencies in the prior art and provide a dehydration and solidification device for engineering waste mud.

[0006] The engineering waste mud dehydration and solidification device comprises a body, a driving device, an extrusion plate, a pressure relief plate and a pressure relief reset auxiliary device. The body is hollow inside, and the body shell is provided with a mud bag inlet and a drainage hole. The driving device comprises a hydraulic jack, an oil pipeline and an oil pump station.

[0007] The pressure unloading plate is arranged at the lower part of the machine body, and the hydraulic jack is connected to the oil pump station through the oil pipeline, and the oil pump station is provided with a display screen and an oil pump controller;

[0008] It is used to drive the extrusion plate to vertically downward to extrude the mud bag. The hydraulic jack is fixed at the top of the hollow interior of the machine body. The extrusion plate is arranged below the output end of the hydraulic jack. The extrusion plate moves vertically in the machine body. The extrusion plate is fixedly connected to the hydraulic jack. A filter chamber is formed between the machine body, the extrusion plate and the pressure-unloading plate, and the mud bag is placed in the filter chamber.

[0009] Preferably, each filter chamber is enclosed by a machine body, an extrusion plate and a pressure-unloading plate, and the width of the filter chamber is greater than the width of the mud bag, and the length of the filter chamber is greater than the length of the mud bag.

[0010] Preferably, the mud bag inlet and outlet port is arranged on the side of the machine body, the distance between the pressure unloading plate and the bottom of the mud bag inlet and outlet port is greater than the height of the mud bag, the width of the mud bag inlet and outlet port opened by the machine body shell is less than or equal to the width of the filter chamber, but greater than the width of the mud bag, and the height of the mud bag inlet and outlet port is greater than the height of the mud bag.

[0011] Preferably, one or more drainage holes are provided on the side wall of the machine body shell below the mud bag inlet and outlet, and the drainage holes are connected to drainage pipes.

[0012] Preferably, two pressure-relief plates are provided at the bottom of the machine body, and the two pressure-relief plates are symmetrically arranged at the bottom of the hollow interior of the machine body, on the left and right sides of the mud bag inlet and outlet, and a pressure-relief rotating shaft is arranged at the end of each pressure-relief plate, and the pressure-relief rotating shaft rotates around the pressure-relief rotating shaft; both ends of the pressure-relief rotating shaft are fixed in the machine body shell, and the length of the pressure-relief rotating shaft is greater than the length of the pressure-relief plate.

[0013] Preferably, a pressure-relief resetting auxiliary device is provided under the pressure-relief plate, and the pressure-relief resetting auxiliary device includes an auxiliary rotating shaft and an auxiliary long rod, and the auxiliary long rod rotates around the auxiliary rotating shaft. The pressure-relief resetting auxiliary device is arranged under the pressure-relief plate in contact with the pressure-relief plate, and the pressure-relief resetting auxiliary device also includes a pressure-relief resetting auxiliary device controller.

[0014] Preferably, the distance between the auxiliary rotating axis and the outer side of the machine body shell + the diameter of the auxiliary rotating axis < the distance between the pressure-removing rotating axis and the outer side of the machine body shell.

[0015] Preferably, a displacement sensor and a force sensor are provided in the driving device to prevent the pressure relief plate from exerting excessive pressure and damaging the pressure relief resetting auxiliary device during the extrusion process.

[0016] The beneficial effects of the utility model are:

[0017] 1) The engineering waste mud dehydration and solidification device provided by the utility model has a filter chamber composed of a machine body and an extrusion and pressure-unloading plate. The extrusion plate is directly pushed to extrude the mud bag by operating the driving device, which can significantly improve the filtration effect. The mud bag is used in the filtration process, which reduces the process of cleaning the filter cloth of the traditional filter press and simplifies the operation. The entire mud filtration process can be completed by operating the driving device and the pressure-unloading and resetting auxiliary device, which reduces manual operation and improves the filtration efficiency.

[0018] 2) The utility model can more effectively separate solid particles and water in the mud, effectively reduce the water content in the mud, realize the dehydration of the mud, thereby reducing pollution to the environment and facilitating subsequent treatment or recycling; the filter chamber adopts a mud bag to hold the mud and drives the extrusion plate to directly extrude, which can effectively enhance the extrusion force in the waste mud filtration process, improve the filtration effect, and thus improve the performance and efficiency of the engineering waste mud dehydration and solidification device.

[0019] 3) The pressure unloading reset auxiliary device is arranged close to the pressure unloading plate below the pressure unloading, and can be controlled by the pressure unloading reset auxiliary device controller; the distance between the auxiliary rotating wheel and the outside of the machine casing + the diameter of the auxiliary rotating shaft < the distance between the pressure unloading rotating wheel and the outside of the machine casing, so as to ensure that during the unloading process, the pressure unloading can be fully and naturally opened under the action of gravity, so as to ensure that the mud bag can fall naturally after the filtration is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the structural diagram of the engineering waste mud dehydration and solidification device;

[0021] Figure 2 This is the bottom structure diagram of the engineering waste mud dehydration and solidification device;

[0022] Figure 3 This is a side sectional view of the engineering waste mud dehydration and solidification device;

[0023] Figure 4 This is a front cross-sectional view of the pressure-discharging plate of the engineering waste mud dehydration and solidification device;

[0024] Figure 5 This is a top view of the cross-sectional view of the pressure-unloading plate of the engineering waste mud dehydration and solidification device;

[0025] Figure 6 This is the process flow chart of the engineering waste mud dehydration and solidification device;

[0026] Figure 7 This is a schematic diagram of the engineering waste mud dehydration and solidification device used for waste mud filter press treatment.

[0027] Explanation of the reference numerals: 1. Machine body; 2. Oil pump station; 3. Extrusion plate; 4. Pressure relief plate; 5. Pressure relief reset auxiliary device; 6. Mud bag inlet; 7. Drainage pipe; 8. Pressure relief rotating shaft; 9. Auxiliary rotating shaft; 10. Auxiliary long rod; 11. Hydraulic jack; 12. Oil pipeline; 13. Oil pump controller; 14. Display screen; 15. Pressure relief reset auxiliary device controller. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the embodiments. The description of the following embodiments is only used to help understand the utility model. It should be pointed out that for ordinary people in this technical field, the utility model can also be modified in some ways without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0029] As an example, Figures 1 to 7 As shown, the engineering waste mud dehydration and solidification device includes a body 1, a driving device, an extrusion plate 3, a pressure-release plate 4 and a pressure-release resetting auxiliary device 5.

[0030] The interior of the machine body 1 is a hollow part, and the outer shell is provided with a mud bag inlet 6 and a drainage hole. The driving device is composed of a hydraulic jack 11, an oil pipeline 12, an oil pump station 2, a display screen 14 and an oil pump controller 13, and is used to drive the extrusion plate 3 to vertically downwardly extrude the mud bag, and to pull the extrusion plate 3 vertically upwardly to reset it after the filtration is completed for subsequent filtration; the hydraulic jack 11 is fixed to the top of the hollow interior of the machine body 1, and the extrusion plate 3 is arranged at the other end of the hydraulic jack 11, and the extrusion plate 3 is fixedly connected to the hydraulic jack 11, and a filter chamber is formed between the machine body 1, the extrusion plate 3 and the pressure-unloading plate 4.

[0031] Each of the filter chambers is composed of a body 1, an extrusion plate 3 and a pressure-unloading plate 4. The width of the filter chamber is greater than the width of the mud bag, and the length of the filter chamber is greater than the length of the mud bag, so as to ensure that the mud bag can be smoothly placed in the filter chamber; the distance between the pressure-unloading plate 4 and the mud bag inlet 6 is greater than the height of the mud bag, so as to fully ensure the extrusion effect.

[0032] The width of the mud bag inlet and outlet 6 opened on the shell of the body 1 is less than or equal to the width of the filter chamber, but greater than the width of the mud bag, and the height of the mud bag inlet and outlet 6 is greater than the height of the mud bag, so as to ensure that the mud bag can smoothly pass through the mud bag inlet and outlet 6 into the filter chamber.

[0033] The housing 1 is provided with a drainage hole for connecting to a drainage pipe 7 to ensure that the water filtered out during the slurry filtering process can be quickly discharged from the filter chamber; the drainage hole can also be designed to be porous.

[0034] There are two pressure relief plates 4, which are symmetrically arranged on the left and right sides of the mud bag inlet 6 in the hollow interior of the body 1. Each pressure relief plate 4 is arranged with a pressure relief rotating shaft 8, and the pressure relief plate 4 can freely rotate up and down around the pressure relief rotating shaft 8.

[0035] Both ends of the pressure-relief rotating shaft 8 are fixed in the outer shell of the machine body 1, and the length of the pressure-relief rotating shaft 8 is greater than the length of the pressure-relief plate 4; the pressure-relief resetting auxiliary device 5 is composed of two auxiliary long rods 10 that can rotate around the auxiliary rotating shaft 9, and the pressure-relief resetting auxiliary device 5 is arranged close to the pressure-relief plate 4 and below the pressure-relief plate 4, and can be controlled by the pressure-relief resetting auxiliary device controller 15.

[0036] The distance between the auxiliary rotating shaft 9 and the outer side of the machine body 1 shell + the diameter of the auxiliary rotating shaft 9 < the distance between the pressure unloading rotating shaft 8 and the outer side of the machine body 1 shell, so as to ensure that during the unloading process, the pressure unloading plate 4 can be fully opened naturally under the action of gravity to ensure that the mud bag can fall naturally after the filtration is completed.

[0037] The driving device is provided with a displacement sensor and a force sensor to prevent the pressure relief plate 4 from being over-pressed and damaging the pressure relief reset auxiliary device 4 during the extrusion process, so that the pressure relief plate 4 is accidentally opened and the mud bag falls before the filtration is completed.

[0038] like Figure 6 and Figure 7 As shown, when this engineering waste mud dehydration and solidification device is used, the waste mud is first stirred twice and a curing agent and a flocculant are added before the two stirrings for preliminary treatment, and then the waste mud is filled into a mud bag for filter pressing. The mud bag filled with mud is sent to the hollow filter chamber inside the body 1 through the mud bag inlet 6, and the driving device is started to push the squeezing plate 3 to squeeze the mud bag and then squeeze the mud, so that the water in the mud is discharged through the mud bag, and the discharged water flows to the drainage pipe to discharge the filter chamber through the drainage hole of the shell of the body 1. After the filter pressing is completed, the driving device is started to pull the squeezing plate 3 back, and at the same time, the pressure relief reset auxiliary device is started, and the auxiliary long rod 10 is rotated so that the pressure relief plate 4 can rotate freely downward around the pressure relief rotating shaft 8 under the action of gravity. The mud bag after the filter pressing will fall naturally under the action of gravity. Then the pressure relief reset auxiliary device is started again to drive the auxiliary long rod 10 to rotate upward to push the pressure relief plate 4 to reset and close, and then the subsequent filter pressing can be continued.

Claims

1. A dehydration and solidification device for engineering waste mud, characterized by: It includes a machine body, a driving device, an extrusion plate, a pressure relief plate and a pressure relief reset auxiliary device. The interior of the machine body is hollow, and the outer shell of the machine body is provided with a mud bag inlet and a drainage hole. The driving device includes a hydraulic jack, an oil pipeline and an oil pump station. The pressure unloading plate is arranged at the lower part of the machine body, and the hydraulic jack is connected to the oil pump station through the oil pipeline, and the oil pump station is provided with a display screen and an oil pump controller; It is used to drive the extrusion plate to vertically downward to extrude the mud bag. The hydraulic jack is fixed at the top of the hollow interior of the machine body. The extrusion plate is arranged below the output end of the hydraulic jack. The extrusion plate moves vertically in the machine body. The extrusion plate is fixedly connected to the hydraulic jack. A filter chamber is formed between the machine body, the extrusion plate and the pressure-unloading plate, and the mud bag is placed in the filter chamber.

2. The engineering waste mud dehydration and solidification device according to claim 1 is characterized in that: Each filter chamber is composed of a machine body, an extrusion plate and a pressure-unloading plate. The width of the filter chamber is greater than the width of the mud bag, and the length of the filter chamber is greater than the length of the mud bag.

3. The engineering waste mud dehydration and solidification device according to claim 2 is characterized in that: The mud bag inlet and outlet port is arranged on the side of the machine body, the distance between the pressure unloading plate and the bottom of the mud bag inlet and outlet port is greater than the height of the mud bag, the width of the mud bag inlet and outlet port opened by the machine body shell is less than or equal to the width of the filter chamber, but greater than the width of the mud bag, and the height of the mud bag inlet and outlet port is greater than the height of the mud bag.

4. The engineering waste mud dehydration and solidification device according to claim 1 is characterized in that: One or more drainage holes are provided on the side wall of the machine body shell below the mud bag inlet and outlet, and the drainage holes are connected with drainage pipes.

5. The engineering waste mud dehydration and solidification device according to claim 1 is characterized by: Two pressure-unloading plates are provided at the bottom of the machine body, and are symmetrically arranged at the bottom of the hollow interior of the machine body, on the left and right sides of the mud bag inlet. A pressure-unloading rotating shaft is arranged at the end of each pressure-unloading plate, and the pressure-unloading rotating shaft rotates around the pressure-unloading rotating shaft; both ends of the pressure-unloading rotating shaft are fixed in the machine body shell, and the length of the pressure-unloading rotating shaft is greater than the length of the pressure-unloading plate.

6. The engineering waste mud dehydration and solidification device according to claim 5, characterized in that: A pressure relief reset auxiliary device is provided below the pressure relief plate, and the pressure relief reset auxiliary device includes an auxiliary rotating shaft and an auxiliary long rod. The auxiliary long rod rotates around the auxiliary rotating shaft. The pressure relief reset auxiliary device is arranged below the pressure relief plate in close contact with the pressure relief plate, and the pressure relief reset auxiliary device also includes a pressure relief reset auxiliary device controller.

7. The engineering waste mud dehydration and solidification device according to claim 6 is characterized by: The distance between the auxiliary rotating shaft and the outer side of the machine body shell + the diameter of the auxiliary rotating shaft < the distance between the pressure-removing rotating shaft and the outer side of the machine body shell.

8. The engineering waste mud dehydration and solidification device according to claim 6 is characterized by: The driving device is provided with a displacement sensor and a force sensor to prevent the pressure relief plate from over-pressing and damaging the pressure relief resetting auxiliary device during the extrusion process.

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