Lakebed sludge dewatering treatment device

Abstract

The invention provides a lakebed sludge dewatering treatment device, which relates to the lakebed sludge dewatering technology, and comprises: a sludge inlet disc comprising a lower part and an inclined part, a plurality of sludge inlets vertically penetrating through the disc surface of the lower part, and dewatering pipes coaxially communicating with the lower ends of the sludge inlets; the upper sludge pressing bin is coaxially and movably arranged with the dewatering pipe, and a first sieve tray is arranged at the lower end of the upper sludge pressing bin; the lower mud pressing bin is coaxially and movably arranged below the upper mud pressing bin, a second sieve tray is arranged at the upper end of the lower mud pressing bin, the lower end of the lower mud pressing bin is communicated with a water through vertical pipe, a gas valve is arranged on the water through vertical pipe, and the lower end of the water through vertical pipe is communicated with a water through hose; the water drainage bin is arranged below the lower mud pressing bin, and the water through hoses are all communicated to the water drainage bin; the sludge receiving bin is arranged below the dewatering pipe, the upper portion of the sludge receiving bin is open, a sliding opening penetrates through the bottom of the sludge receiving bin, and the lower sludge pressing bin is coaxially arranged in the sliding opening in a sliding fit mode. The water content of the produced dried sludge can be effectively reduced, the sludge dewatering efficiency and the water yield are improved, and high practicability is achieved.

Description

Technical Field

[0001] The present application relates to the field of sludge treatment, in particular to lake bottom sludge dewatering technology, and specifically to a lake bottom sludge dewatering treatment device. Background Art

[0002] Generally, when an artificial lake is set up downstream of the sewage treatment facility outlet, the role of the artificial lake is generally to act as an ecosystem to purify the trace residual pollutants carried in the water discharged from the sewage treatment facility. However, due to its limited purification capacity, some of the pollutants that have not been purified will be deposited on the bottom of the lake. After a long time, lake sludge that affects the biodiversity in the artificial lake will be formed. These polluting lake sludges need to be cleaned regularly. After the lake sludge is cleaned out, it is generally necessary to dehydrate it to obtain dried sludge and sludge-free water. The dried sludge can be used as soil conditioner, biofuel, building material, etc., and the sludge-free water can be used as clean water after further purification, thereby improving the utilization rate of the lake sludge. At present, the traditional dehydration device of lake sludge generally uses a filter press to dehydrate, that is, the water in the sludge is squeezed out by extrusion. However, due to the limited pressure applied by the hydraulic system and the limited amount of sludge treated in a single dehydration, the dried sludge produced in this way has a high water content, the efficiency of sludge dehydration is low, and the sludge water output rate is low. Summary of the invention

[0003] In order to solve the above-mentioned defects of the related prior art, the present application provides a lake bottom sludge dewatering treatment device, which can effectively reduce the water content of the output dried sludge, improve the sludge dewatering efficiency and water output rate, and has strong practicality.

[0004] In order to achieve the above object, the present invention adopts the following technologies: A lake bottom sludge dewatering treatment device, comprising: The mud inlet plate comprises a lower part and an inclined part connected to the plate surface, the lower part and the inclined part are connected at an obtuse angle, the lower plate surface is vertically penetrated with multiple mud inlets, the lower ends of the mud inlets are coaxially connected with a dehydration pipe, the inner diameter of the dehydration pipe matches the size of the mud inlet, and the lower end of the dehydration pipe is open; The upper pressure mud bins, the number of which matches the mud inlet, are coaxially arranged with the dehydration pipe in a one-to-one correspondence, the outer diameter of the upper pressure mud bins matches the inner diameter of the dehydration pipe, a first sieve plate is arranged at the lower end of the upper pressure mud bins, and the air pressure in the bins of the upper pressure mud bins is adjustable; The number of the lower pressure mud bins matches the mud inlet, and they are coaxial with the upper pressure mud bin and movably arranged below the upper pressure mud bin. The outer diameter of the lower pressure mud bin matches the inner diameter of the dehydration pipe. A second sieve plate is arranged at the upper end of the lower pressure mud bin. The air pressure in the bin of the lower pressure mud bin is adjustable. The lower ends of the lower pressure mud bins are connected with water vertical pipes, on which gas valves are arranged, and the lower ends of the water vertical pipes are connected with water hoses. The drainage bin is located below the lower pressure mud bin, and the water hoses are connected to the drainage bin; The mud receiving bin is arranged below the dewatering pipe, the upper part of the mud receiving bin is open, the bottom of the mud receiving bin is penetrated along the axial direction of the dewatering pipe with sliding openings matching the number of the dewatering pipes, and the lower pressure mud bins are coaxially slidably matched in the sliding openings one by one; The mounting plate is arranged on the mounting plane of the device, the drainage bin is arranged on the mounting plate, the mounting plate is provided with a first support rod and a third support rod, the first support rod is connected with a support frame, the mud receiving bin is installed on the support frame, the support frame is provided with a second support rod, the second support rod is connected with the support plate, and the third support rod is connected to the mud tray.

[0005] Furthermore, the mud receiving bin includes a bottom plate, a vertical column, an end bin, a pressure plate, and a side plate. The bottom plate surface is arranged perpendicular to the axial direction of the dehydration pipe, the sliding port passes through the bottom plate along the axial direction of the dehydration pipe, one end of the bottom plate is connected to the support frame, there are two vertical columns, and they are respectively arranged at two corners of the upper surface of one end of the bottom plate along the height direction of the bottom plate, the bottom surface of the end bin is connected to the other end of the upper surface of the bottom plate, the height of the end bin matches the vertical column, the upper part of the end bin is open, and a third sieve plate is arranged on the side where the end bin is connected to the upper surface of the bottom plate, the surface of the pressure plate is arranged perpendicular to the length direction of the bottom plate, the pressure plate is arranged to move along the length direction of the bottom plate, and the rectangular space formed between the two vertical columns and the pressure plate are in the length direction of the bottom plate There are two side panels, and their panel surfaces are both arranged perpendicular to the width direction of the bottom plate. The two side panels are arranged movably along the width direction of the bottom plate. The rectangular space formed between one side edge of the side surface of the end bin facing the bottom plate and the vertical column on the same side matches the projection of the two side panels in the width direction of the bottom plate. The thickness of the side panels matches the size of the vertical columns in the width direction of the bottom plate. A cover plate is arranged between the mud receiving bin and the dewatering pipe. The surface of the cover plate is parallel to the surface of the bottom plate. The cover plate is arranged movably along the width direction and the height direction of the bottom plate. The lower surface of the cover plate is used for sealing contact with the upper ends of the vertical columns, the end bin, the pressure plate and the side panels. The bottom surface of the end bin is connected with a drainage pipe, and the drainage pipe is connected to the drainage bin.

[0006] Furthermore, a conveying track is provided below one side of the bottom plate, the conveying track leads to a roasting bin, and the roasting bin is provided on the mounting plate for roasting the sludge on the conveying track.

[0007] Furthermore, a first linear cylinder is provided on the support frame along the length direction of the base plate, and a driving shaft of the first linear cylinder is connected to the pressure plate.

[0008] Furthermore, a first electric screw is provided on the support frame along the width direction of the base plate, the first electric screw is matched with a first matching block, the first matching block is connected to a portal frame, the two ends of the portal frame are respectively located outside the two sides of the base plate, the two ends of the portal frame are connected to drive rods, and the drive rods are respectively connected to the back-to-back surfaces of the two side plates.

[0009] Furthermore, a second electric screw is provided on the support plate along the width direction of the base plate, the second electric screw is matched with a second matching block, a second linear cylinder is provided on the second matching block along the height direction of the base plate, and the driving shaft of the second linear cylinder is connected to the upper surface of the cover plate.

[0010] Furthermore, the upper ends of the upper pressure mud bins are connected to ventilation pipes, which are connected to the same first air bin, which is axially movable along the dehydration pipe, and the lower ends of the side walls of the lower pressure mud bins are connected to first gas hoses, which are connected to the same second air bin, which is arranged on a mounting plate, which is connected to a short pipe, which is connected to an air distribution bin, which is installed on a support frame, and a coaxially movable air distribution cake is provided in the air distribution bin, the size of which matches the inner diameter of the air distribution bin, and the other end of the air distribution bin is connected to a second gas hose, which is connected to the first air bin.

[0011] Furthermore, a fixing rod is connected to the support plate, the fixing rod is connected to the fixing plate, a third linear cylinder is arranged on the fixing plate along the axial direction of the dehydration pipe, and a driving shaft of the third linear cylinder is connected to the first air bin.

[0012] Furthermore, an opening is provided at the other end of the air distribution bin, and a fourth linear cylinder is provided on the support plate along the axis of the air distribution bin. The driving shaft of the fourth linear cylinder passes through the opening and is coaxially connected to the air distribution cake, and the size of the driving shaft of the fourth linear cylinder matches the size of the opening.

[0013] Furthermore, a fifth linear cylinder is provided on the mounting plate along the axial direction of the dehydration pipe, a driving shaft of the fifth linear cylinder is connected to a driving frame, and the lower pressure mud bin is installed on the driving frame.

[0014] The beneficial effects of the present invention are: The sludge that falls from the mud inlet tray into the dehydration pipe is dehydrated by using multiple upper and lower pressure silos. The water in the sludge is pressed into the lower pressure silo by squeezing the upper and lower pressure silos, and the water in the sludge is further driven into the lower pressure silo by the air pressure difference between the upper and lower pressure silos, which effectively reduces the water content of the dried sludge and improves the sludge dehydration efficiency and water output rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of a lake bottom sludge dewatering treatment device according to an embodiment of the present application.

[0016] Figure 2 It is a partial three-dimensional schematic diagram of the mud inlet tray, the upper mud pressure bin, the lower mud pressure bin, and the mud receiving bin of an embodiment of the present application.

[0017] Figure 3 It is a partial three-dimensional cross-sectional view of the upper pressure mud bin, the lower pressure mud bin, and the dewatering pipe of an embodiment of the present application.

[0018] Figure 4 It is a three-dimensional enlarged view of the mud receiving bin of the embodiment of the present application.

[0019] Figure 5 It is a three-dimensional enlarged view of the conveying track, support frame, and support plate of an embodiment of the present application.

[0020] Figure 6 It is a three-dimensional schematic diagram from another perspective of the lake bottom sludge dewatering treatment device of an embodiment of the present application.

[0021] Figure 7 It is a partial three-dimensional cross-sectional view of the gas distribution chamber of an embodiment of the present application.

[0022] Markings in the figure: 1-mud inlet, 11-lower part, 12-inclined part, 13-mud inlet, 14-dehydration pipe, 2-upper pressure mud bin, 21-first sieve plate, 22-ventilation pipe, 23-first gas bin, 24-second gas hose, 25-third linear cylinder, 3-lower pressure mud bin, 31-second sieve plate, 32-water vertical pipe, 33-water hose, 34-gas valve, 35-first gas hose, 36-second gas bin, 37-short pipe, 38-fifth linear cylinder, 39-driving frame, 4-drainage bin, 5-mud receiving bin, 51-sliding port, 52-bottom plate, 53-vertical column, 54-end bin, 55-pressure Plate, 56-side plate, 57-third sieve plate, 58-cover plate, 59-drain pipe, 510-first linear cylinder, 511-first electric screw rod, 512-first matching block, 513-gantry, 514-driving rod, 515-second electric screw rod, 516-second matching block, 517-second linear cylinder, 6-mounting plate, 61-first support rod, 62-support frame, 63-second support rod, 64-support plate, 65-fixed rod, 66-fixed plate, 67-third support rod, 7-conveying track, 71-roasting bin, 8-gas distribution bin, 81-gas distribution cake, 82-fourth linear cylinder. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the implementation modes of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] like Figure 1 and Figure 2 As shown, this embodiment provides a lake bottom sludge dewatering treatment device, including a mud inlet tray 1, an upper mud pressure bin 2, a lower mud pressure bin 3, a drainage bin 4, a mud receiving bin 5, and a mounting plate 6.

[0025] Specifically, Figure 1 and Figure 2As shown, the mud inlet tray 1 includes a lower portion 11 and an inclined portion 12 connected to each other, the connection between the lower portion 11 and the inclined portion 12 is at an obtuse angle, and the lower portion 11 has six mud inlets 13 vertically passing through the disk surface. In this example, the six mud inlets 13 are distributed in an array along the length direction of the lower portion 11; the lower ends of the mud inlets 13 are coaxially connected to a dewatering pipe 14, the inner diameter of the dewatering pipe 14 matches the size of the mud inlet 13, and the lower end of the dewatering pipe 14 is open. The mud inlet tray 1 is used to carry the sludge to be dehydrated, and the inclined portion 12 is used to make the sludge to be dehydrated in the mud inlet tray 1 slide to the lower portion 11, thereby entering the dewatering pipe 14.

[0026] Specifically, Figure 2 and Figure 3 As shown, the number of upper pressure mud bins 2 matches the mud inlet 13, and they are coaxially arranged to move with the dehydration pipe 14 in a one-to-one correspondence. The outer diameter of the upper pressure mud bin 2 matches the inner diameter of the dehydration pipe 14, so that when the upper pressure mud bin 2 moves into the dehydration pipe 14, the contact surface between the outer wall and the inner wall of the dehydration pipe 14 is airtight; a first sieve plate 21 is provided at the lower end of the upper pressure mud bin 2, and the first sieve plate 21 is used to realize solid-liquid separation of the sludge; the air pressure in the upper pressure mud bin 2 is adjustable.

[0027] Specifically, Figure 2 and Figure 3 As shown, the number of the lower pressure mud bins 3 matches the mud inlet 13, and they are coaxial with the upper pressure mud bin 2 and movably arranged below it. The outer diameter of the lower pressure mud bin 3 matches the inner diameter of the dehydration pipe 14, so that when the lower pressure mud bin 3 moves into the dehydration pipe 14, the contact surface between the outer wall and the inner wall of the dehydration pipe 14 is airtight; a second sieve plate 31 is arranged at the upper end of the lower pressure mud bin 3, and the second sieve plate 31 is used to realize the solid-liquid separation of the sludge; the air pressure in the lower pressure mud bin 3 is adjustable, and the lower end of the lower pressure mud bin 3 is connected to a water vertical pipe 32, and the gas valve 34 is used to control the gas and liquid flow of the water vertical pipe 32; the lower end of the water vertical pipe 32 is connected to a water hose 33.

[0028] Specifically, Figure 2 As shown, the drainage bin 4 is arranged below the lower pressure mud bin 3, and the water hoses 33 are connected to the drainage bin 4. The water hoses 33 are used to combine with the water vertical pipe 32 to guide the water in the lower pressure mud bin 3 into the drainage bin 4. The drainage bin 4 is used to temporarily store the sludge-free water produced after dehydration and send it to the subsequent water purification process.

[0029] Specifically, Figure 2 and Figure 4 As shown, the mud receiving bin 5 is arranged below the dewatering pipe 14, the upper part of the mud receiving bin 5 is open, and the bottom of the mud receiving bin 5 is axially penetrated by sliding openings 51 whose number matches the dewatering pipe 14, and the lower pressure mud bin 3 is coaxially slidably fitted in the sliding openings 51 one by one, and the mud receiving bin 5 is used to receive the dried sludge produced by the device.

[0030] Specifically, Figure 1 and Figure 2 As shown, the mounting plate 6 is arranged on the mounting plane of the device, the drainage bin 4 is arranged on the mounting plate 6, the mounting plate 6 is provided with a first support rod 61 and a third support rod 67, the first support rod 61 is connected to a support frame 62, the mud receiving bin 5 is installed on the support frame 62, the support frame 62 is provided with a second support rod 63, the second support rod 63 is connected to a support plate 64, and the third support rod 67 is connected to the mud entering pan 1 for supporting the mud entering pan 1.

[0031] During operation, the upper end of the lower pressure mud bin 3 is extended into the dewatering pipe 14, and the sludge is sent into the mud inlet plate 1 by means of conveying equipment such as a pumping device. The sludge slides from the inclined portion 12 to the lower portion 11, and enters the dewatering pipe 14 to fill the space inside the dewatering pipe 14 above the upper end of the lower pressure mud bin 3; the gas valve 34 is opened to control the air pressure in the space inside the upper pressure mud bin 2 to remain unchanged and move the upper pressure mud bin 2 downward. The upper pressure mud bin 2 first contacts the sludge surface on the lower portion 11, and continues to move the upper pressure mud bin 2 downward so that the upper pressure mud bin 2 enters the dewatering pipe 14. At this time, the sludge in the dewatering pipe 14 is squeezed by the upper pressure mud bin 2, and the water therein enters the lower pressure mud bin 3 through the second sieve plate 31, and enters the drainage bin 4 through the water vertical pipe 32 and the water hose 33; when the upper pressure mud bin 2 removes the sludge in the lower pressure mud bin 3 When the mud is pressed to a certain extent, the gas valve 34 is closed to increase the air pressure in the upper pressure mud bin 2 and reduce the air pressure in the lower pressure mud bin 3. The residual water in the dehydration pipe 14 is driven into the lower pressure mud bin 3 through the second sieve plate 31 by the air pressure difference. At this time, the sludge is further dehydrated; the air pressure in the upper pressure mud bin 2 is balanced and the lower pressure mud bin 3 is moved downward so that the upper surface of the second sieve plate 31 is flush with the bottom surface of the mud receiving bin 5. At this time, the dried sludge that has completed dehydration enters the mud receiving bin 5. The sludge in the mud receiving bin 5 can be taken out by mechanical material taking device or manually, and the upper pressure mud bin 2 and the lower pressure mud bin 3 are moved for the next dehydration treatment. With this design, the sludge is dehydrated twice by extrusion and air pressure difference, which effectively reduces the water content of the dried sludge finally produced and improves the sludge dehydration efficiency.

[0032] Preferably, Figure 1 , Figure 2 , Figure 4As shown, the mud receiving bin 5 includes a bottom plate 52, a vertical column 53, an end bin 54, a pressure plate 55, and a side plate 56. The bottom plate 52 is arranged perpendicular to the axial direction of the dehydration pipe 14. The sliding port 51 passes through the bottom plate 52 along the axial direction of the dehydration pipe 14. One end of the bottom plate 52 is connected to the support frame 62. There are two vertical columns 53, which are respectively arranged at two corners of the upper surface of one end of the bottom plate 52 along the height direction of the bottom plate 52. The bottom surface of the end bin 54 is connected to the other end of the upper surface of the bottom plate 52. The end bin 54 is matched in height with the vertical column 53. The matching here is used to satisfy that a rectangular can be formed between one side of the end bin 54 facing the side of the bottom plate 52 and the vertical column 53 on the same side. shaped space; the upper part of the end bin 54 is open, and a third sieve plate 57 is arranged on the side where the end bin 54 is connected to the upper surface of the bottom plate 52, and the third sieve plate 57 is used to achieve solid-liquid separation of the sludge; the plate surface of the pressing plate 55 is arranged perpendicular to the length direction of the bottom plate 52, and the pressing plate 55 is arranged to move along the length direction of the bottom plate 52. The rectangular space formed between the two vertical columns 53 matches the projection of the pressing plate 55 in the length direction of the bottom plate 52. This design is used to make the contact surface of the pressing plate 55 with the vertical columns 53 and the bottom plate 52 liquid-tight when the pressing plate 55 moves between the vertical columns 53; there are two side plates 56, and their plate surfaces are arranged perpendicular to the width direction of the bottom plate 52. The two side panels 56 are arranged to move along the width direction of the bottom plate 52. The rectangular space formed between one side edge of the side of the end warehouse 54 facing the bottom plate 52 and the vertical column 53 on the same side matches the projection of the two side panels 56 in the width direction of the bottom plate 52. The design is used to make the contact surfaces of the side panels 56, the vertical column 53, the bottom plate 52, and the side edges of the side of the end warehouse 54 facing the bottom plate 52 liquid-tight when the two side panels 56 are moved to between the two side edges of the side of the end warehouse 54 facing the bottom plate 52 and the vertical column 53 on the same side. The thickness of the side panels 56 matches the size of the vertical column 53 in the width direction of the bottom plate 52. The design is used to make the contact surfaces of the side panels 56, the vertical column 53, the bottom plate 52, and the side edges of the side of the end warehouse 54 facing the bottom plate 52 liquid-tight. When the two side plates 56 are respectively moved to between the two side edges of the side of the end bin 54 facing the bottom plate 52 and the vertical column 53 on the same side, the contact surface of the pressure plate 55 with the side plates 56 and the bottom plate 52 is liquid-tight during the movement; a cover plate 58 is arranged between the mud receiving bin 5 and the dewatering pipe 14, and the surface of the cover plate 58 is parallel to the surface of the bottom plate 52. The cover plate 58 is movably arranged along the width and height directions of the bottom plate 52. The lower surface of the cover plate 58 is used to contact with the upper ends of the vertical columns 53, the end bin 54, the pressure plate 55, and the side plates 56, and its contact surface is liquid-tight. The bottom surface of the end bin 54 is connected to a drain pipe 59, and the drain pipe 59 is connected to the drainage bin 4.

[0033] During operation, the initial position of the pressing plate 55 is between the vertical columns 53, the initial position of the side plates 56 is respectively between the two side edges of the side of the end bin 54 facing the bottom plate 52 and the vertical columns 53 on the same side, and the initial position of the cover plate 58 is outside one side of the bottom plate 52. When the upper mud bin 2 and the lower mud bin 3 complete the dehydration operation of the sludge, the lower mud bin 3 drives the dried sludge into the mud receiving bin 5, and when the upper surface of the second sieve plate 31 is flush with the inner bottom surface of the mud receiving bin 5, the cover plate 58 is moved so that the lower surface of the cover plate 58 contacts the upper ends of the vertical columns 53, the end bin 54, the pressing plate 55, and the side plates 56, and the pressing plate 55 is moved, and the pressing plate 55 pushes the dried sludge to move, and pushes the dried sludge Move to the third sieve plate 57, continue to move the pressing plate 55, the pressing plate and the third sieve plate 57 will squeeze the dried sludge, the residual moisture of the dried sludge enters the end bin 54 through the third sieve plate 57, and enters the drainage bin 4 through the drainage pipe 59. After the squeezing is completed, the side plate 56 is moved at the same time to push the sludge out from the side of the bottom plate 52; because the dehydration treatment of the sludge by the upper mud bin 2 and the lower mud bin 3 is squeezed in the vertical direction, the setting of the pressing plate 55 and the second sieve plate 31 can further squeeze and dehydrate the dried sludge that has been dehydrated in the horizontal direction. This design further reduces the water content of the dried sludge and improves the sludge dehydration efficiency.

[0034] Preferably, Figure 1 , Figure 4 , Figure 5 As shown, a conveying track 7 is provided below one side of the bottom plate 52, and the conveying track 7 is used to receive the dried sludge pushed out from one side of the bottom plate 52 by the side plate 56, and to transport the dried sludge; the conveying track 7 leads to a roasting bin 71, and the roasting bin 71 is provided on the mounting plate 6, and is used to roast the sludge on the conveying track 7, so as to further reduce the water content of the dried sludge.

[0035] Preferably, Figure 5 As shown, a first linear cylinder 510 is provided on the support frame 62 along the length direction of the base plate 52 , and a driving shaft of the first linear cylinder 510 is connected to the pressing plate 55 , and the first linear cylinder 510 is used to drive the pressing plate 55 to move.

[0036] Preferably, Figure 4 and Figure 5 As shown, a first electric screw rod 511 is provided on the support frame 62 along the width direction of the base plate 52, and the first electric screw rod 511 is matched with a first matching block 512, and the first matching block 512 is connected to a gantry frame 513, and two ends of the gantry frame 513 are respectively located outside the two sides of the base plate 52, and two ends of the gantry frame 513 are connected to drive rods 514, and the drive rods 514 are respectively connected to the opposite plate surfaces of the two side plates 56, and the first electric screw rod 511 is used to drive the side plates 56 to move through the first matching block 512, the gantry frame 513, and the drive rod 514.

[0037] Preferably, Figure 4and Figure 5 As shown, a second electric screw 515 is provided on the support plate 64 along the width direction of the base plate 52, and the second electric screw 515 is matched with a second matching block 516. A second linear cylinder 517 is provided on the second matching block 516 along the height direction of the base plate 52, and the driving shaft of the second linear cylinder 517 is connected to the upper surface of the cover plate 58. The second electric screw 515 is used to drive the cover plate 58 to move along the width direction of the base plate 52, and the second linear cylinder 517 is used to drive the cover plate 58 to move along the height direction of the base plate 52.

[0038] Preferably, Figure 2 , Figure 6 , Figure 7 As shown, the upper ends of the upper pressure mud bins 2 are connected with ventilation pipes 22, and the ventilation pipes 22 are connected with the same first gas bin 23. The first gas bin 23 is axially movable along the dehydration pipe 14, and the lower ends of the side walls of the lower pressure mud bins 3 are connected with first gas hoses 35, and the first gas hoses 35 are connected with the same second gas bin 36. The second gas bin 36 is arranged on the mounting plate 6, and the second gas bin 36 is connected with a short pipe 37, and the short pipe 37 is connected with an air distribution bin 8. The air distribution bin 8 is installed on the support frame 62, and an air distribution cake 81 is coaxially movable in the air distribution bin 8. The size of the air distribution cake 81 matches the inner diameter of the air distribution bin 8, so as to make the contact surface between the air distribution cake 81 and the inner wall of the air distribution bin 8 air-tight; the other end of the air distribution bin 8 is connected with a second gas hose 24, and the second gas hose 24 is connected to the first air bin 23.

[0039] During operation, when it is necessary to control the air pressure in the space of the upper pressure mud silo 2 to remain unchanged, the air distribution cake 81 is controlled to remain stationary; when it is necessary to increase the air pressure in the upper pressure mud silo 2 and reduce the air pressure in the lower pressure mud silo 3, the air distribution cake is moved toward the second air supply hose 24; when it is necessary to adjust the air pressure in the upper pressure mud silo 2, the gas valve 34 is opened to allow the gas valve 34 to flow and the air distribution cake is moved, so that the air pressure in the upper pressure mud silo 2 can be adjusted. This design does not require a gas pump to complete the adjustment of the air pressure in the upper pressure mud silo 2 and the lower pressure mud silo 3.

[0040] Preferably, Figure 1 and Figure 2 As shown, a fixing rod 65 is connected to the support plate 64, and the fixing rod 65 is connected to a fixing plate 66. A third linear cylinder 25 is provided on the fixing plate 66 along the axial direction of the dehydration pipe 14. The driving shaft of the third linear cylinder 25 is connected to the first air bin 23. The third linear cylinder 25 is used to drive the upper pressure mud bin 2 to move coaxially with the dehydration pipe 14 through the first air bin 23 and the ventilation pipe 22.

[0041] Preferably, Figure 7As shown, an opening is passed through the other end of the air distribution bin 8, and a fourth linear cylinder 82 is provided on the support plate 64 along the axial direction of the air distribution bin 8. The driving shaft of the fourth linear cylinder 82 passes through the opening and is coaxially connected to the air distribution cake 81. The size of the driving shaft of the fourth linear cylinder 82 matches the size of the opening. The matching here means that the contact surface between the driving shaft of the fourth linear cylinder 82 and the opening is airtight; the fourth linear cylinder 82 is used to drive the air distribution cake 81 to move.

[0042] Preferably, Figure 1 and Figure 2 As shown, a fifth linear cylinder 38 is provided on the mounting plate 6 along the axial direction of the dehydration pipe 14, the driving shaft of the fifth linear cylinder 38 is connected to the driving frame 39, the lower pressure mud bin 3 is installed on the driving frame 39, and the fifth linear cylinder 38 is used to drive the lower pressure mud bin 3 to move coaxially with the upper pressure mud bin 2 through the driving frame 39.

[0043] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application.

Claims

1. A lake bottom sludge dewatering treatment device, characterized in that: include: The mud inlet plate (1) comprises a lower portion (11) and an inclined portion (12) connected to each other, the lower portion (11) and the inclined portion (12) forming an obtuse angle at the junction of the lower portion (11) and the inclined portion (12), a plurality of mud inlets (13) vertically passing through the lower portion (11) of the disk, the lower ends of the mud inlets (13) being coaxially connected to a dewatering pipe (14), the inner diameter of the dewatering pipe (14) matching the size of the mud inlet (13), and the lower end of the dewatering pipe (14) being open; The upper pressure mud bins (2) are matched in number with the mud inlet (13) and are coaxially arranged to move with the dewatering pipe (14) in a one-to-one correspondence. The outer diameter of the upper pressure mud bins (2) matches the inner diameter of the dewatering pipe (14). A first sieve plate (21) is provided at the lower end of the upper pressure mud bins (2). The air pressure in the bin of the upper pressure mud bins (2) is adjustable. The number of the lower pressure mud bins (3) matches the mud inlet (13), and they are coaxially arranged with the upper pressure mud bin (2) in one-to-one correspondence and movably arranged below the upper pressure mud bin (2). The outer diameter of the lower pressure mud bin (3) matches the inner diameter of the dewatering pipe (14). A second sieve plate (31) is arranged at the upper end of the lower pressure mud bin (3). The gas pressure in the bin of the lower pressure mud bin (3) is adjustable. The lower ends of the lower pressure mud bins (3) are connected to water vertical pipes (32), and the water vertical pipes (32) are provided with gas valves (34). The lower ends of the water vertical pipes (32) are connected to water hoses (33). A drainage bin (4) is disposed below the lower pressure mud bin (3), and the water hoses (33) are all connected to the drainage bin (4); The mud receiving bin (5) is arranged below the dewatering pipe (14), the upper part of the mud receiving bin (5) is open, and the bottom of the mud receiving bin (5) is axially penetrated by sliding openings (51) whose number matches the dewatering pipe (14), and the lower pressure mud bins (3) are coaxially slidably matched in the sliding openings (51) in a one-to-one correspondence; The mounting plate (6) is arranged on the mounting plane of the device, the drainage bin (4) is arranged on the mounting plate (6), a first support rod (61) and a third support rod (67) are arranged on the mounting plate (6), the first support rod (61) is connected to a support frame (62), the mud receiving bin (5) is mounted on the support frame (62), a second support rod (63) is arranged on the support frame (62), the second support rod (63) is connected to a support plate (64), and the third support rod (67) is connected to the mud tray (1).

2. A lake bottom sludge dewatering treatment device according to claim 1, characterized in that: The mud receiving bin (5) comprises a bottom plate (52), a vertical column (53), an end bin (54), a pressure plate (55), and a side plate (56). The bottom plate (52) has a plate surface perpendicular to the axial direction of the dewatering pipe (14). The sliding opening (51) penetrates the bottom plate (52) along the axial direction of the dewatering pipe (14). One end of the bottom plate (52) is connected to a support frame (62). There are two vertical columns (53), which are respectively arranged at two corners of the upper surface of one end of the bottom plate (52) along the height direction of the bottom plate (52). The end bin (54) The bottom surface of the bin is connected to the other end of the upper surface of the bottom plate (52), the end bin (54) matches the height of the vertical column (53), the upper part of the end bin (54) is open, and a third sieve plate (57) is arranged on the side where the end bin (54) and the upper surface of the bottom plate (52) are connected. The plate surface of the pressing plate (55) is arranged perpendicular to the length direction of the bottom plate (52), and the pressing plate (55) is arranged to move along the length direction of the bottom plate (52). The rectangular space formed between the two vertical columns (53) and the pressing plate (55) are arranged on the length of the bottom plate (52). The side panels (56) are arranged to match the projections in the width direction of the bottom plate (52), and the two side panels (56) are arranged to move along the width direction of the bottom plate (52). The rectangular space formed between the side edge of the side of the end bin (54) facing the bottom plate (52) and the vertical column (53) on the same side matches the projections of the two side panels (56) in the width direction of the bottom plate (52). The thickness of the side panels (56) matches the thickness of the vertical column (53) in the width direction of the bottom plate (52). The sizes are matched. A cover plate (58) is provided between the mud receiving bin (5) and the dewatering pipe (14). The surface of the cover plate (58) is parallel to the surface of the bottom plate (52). The cover plate (58) is movably provided along the width direction and the height direction of the bottom plate (52). The lower surface of the cover plate (58) is used for sealing contact with the upper ends of the vertical column (53), the end bin (54), the pressure plate (55), and the side plate (56). The bottom surface of the end bin (54) is connected to a drainage pipe (59), and the drainage pipe (59) is connected to the drainage bin (4).

3. A lake bottom sludge dewatering treatment device according to claim 2, characterized in that: A conveying track (7) is provided below one side of the bottom plate (52), the conveying track (7) leads to a roasting bin (71), and the roasting bin (71) is provided on the mounting plate (6) and is used to roast the sludge on the conveying track (7).

4. The lake bottom sludge dewatering treatment device according to claim 2 is characterized in that: A first linear cylinder (510) is provided on the support frame (62) along the length direction of the bottom plate (52), and a driving shaft of the first linear cylinder (510) is connected to the pressing plate (55).

5. The lake bottom sludge dewatering treatment device according to claim 2, characterized in that: A first electric screw rod (511) is provided on the support frame (62) along the width direction of the bottom plate (52); the first electric screw rod (511) is matched with a first matching block (512); the first matching block (512) is connected to a portal frame (513); two ends of the portal frame (513) are respectively located outside two sides of the bottom plate (52); both ends of the portal frame (513) are connected to driving rods (514); the driving rods (514) are respectively connected to the opposite plate surfaces of the two side plates (56).

6. The lake bottom sludge dewatering treatment device according to claim 2, characterized in that: A second electric screw (515) is provided on the support plate (64) along the width direction of the bottom plate (52); the second electric screw (515) is matched with a second matching block (516); a second linear cylinder (517) is provided on the second matching block (516) along the height direction of the bottom plate (52); and a driving shaft of the second linear cylinder (517) is connected to the upper surface of the cover plate (58).

7. The lake bottom sludge dewatering treatment device according to claim 1, characterized in that: The upper ends of the upper pressure mud bins (2) are connected to ventilation pipes (22), which are connected to the same first gas bin (23). The first gas bin (23) is axially movable along the dehydration pipe (14). The lower ends of the side walls of the lower pressure mud bins (3) are connected to first gas hoses (35), which are connected to the same second gas bin (36). The second gas bin (36) is arranged on the mounting plate (6). The second gas bin (36) is connected to a short pipe (37), which is connected to a gas distribution bin (8). The gas distribution bin (8) is installed on a support frame (62). A gas distribution cake (81) is coaxially movable in the gas distribution bin (8). The size of the gas distribution cake (81) matches the inner diameter of the gas distribution bin (8). The other end of the gas distribution bin (8) is connected to a second gas hose (24), which is connected to the first gas bin (23).

8. The lake bottom sludge dewatering treatment device according to claim 7, characterized in that: The support plate (64) is connected to a fixing rod (65), the fixing rod (65) is connected to a fixing plate (66), a third linear cylinder (25) is provided on the fixing plate (66) along the axial direction of the dehydration pipe (14), and a driving shaft of the third linear cylinder (25) is connected to the first air bin (23).

9. The lake bottom sludge dewatering treatment device according to claim 7, characterized in that: The other end of the air distribution bin (8) is provided with an opening, and a fourth linear cylinder (82) is provided on the support plate (64) along the axial direction of the air distribution bin (8). The drive shaft of the fourth linear cylinder (82) passes through the opening and is coaxially connected to the air distribution cake (81), and the size of the drive shaft of the fourth linear cylinder (82) matches the size of the opening.

10. The lake bottom sludge dewatering treatment device according to claim 1, characterized in that: A fifth linear cylinder (38) is provided on the mounting plate (6) along the axial direction of the dewatering pipe (14); a driving shaft of the fifth linear cylinder (38) is connected to a driving frame (39); and the lower pressure mud bin (3) is mounted on the driving frame (39).

Images