Skid-mounted sludge drying machine

Abstract

The invention relates to a stacked sludge drying machine, in particular to a skid-mounted stacked sludge drying machine. When the skid-mounted sludge drying machine provided by the invention is transported, assembled and disassembled, a device contained in the first skid-mounted assembly does not need to be disassembled from the first frame, a device contained in the second skid-mounted assembly does not need to be disassembled from the second frame, and only the device contained in the first skid-mounted assembly needs to be disconnected from the device contained in the second skid-mounted assembly; for example, the efficiency of disassembly of the connecting hose, transportation, assembly and disassembly is high.

Description

Technical Field

[0001] The invention relates to a stacked sludge drying machine, in particular to a skid-mounted stacked sludge drying machine. Background Art

[0002] The basic structure and principle of the stacked sludge dryer are recorded in the patent document CN221094005U. The characteristic of the stacked sludge dryer lies in the way it dehydrates the sludge. The stacked sludge dryer includes a stacked filter press, a two-level material paving trolley, a sludge recovery device, etc. The upper body of the two-level material paving trolley moves back and forth, so that the filter cloth is stacked back and forth in the barrel of the stacked filter press, and the sludge is sandwiched in the interlayer formed by the stacking of the filter cloth. The hydraulic device of the stacked filter press press presses the stacked filter cloth and sludge, squeezes out the water in the sludge, and discharges it from the barrel. Afterwards, the filter cloth is recovered by the roller frame device, with the sludge side facing down, and the dried sludge falls off the filter cloth and falls into the trough of the sludge recovery device.

[0003] The stacked sludge dryer contains many devices, and it is troublesome to transport, assemble and disassemble. Summary of the invention

[0004] The technical problem to be solved by the present invention is how to improve the convenience of transportation, assembly and disassembly of the stacked sludge dryer.

[0005] In order to solve the above technical problems, the inventors of the present invention planned the layout of the devices contained in the stacked sludge dryer, and proposed a skid-mounted stacked sludge dryer, which improved the convenience of transportation, assembly and disassembly of the stacked sludge dryer.

[0006] The present invention provides a skid-mounted sludge drying machine, comprising a first skid-mounted assembly, a second skid-mounted assembly and a connecting hose, wherein the first skid-mounted assembly comprises a first frame of a rectangular parallelepiped structure, wherein a roller frame device for conveying filter cloth and a stacked filter press for dehydrating sludge are arranged in sequence from back to front in the first frame, wherein the roller frame device comprises a subframe and a roller group arranged on the subframe, and the subframe is fixedly connected to the first frame; the stacked filter press comprises a frame, a hydraulic device, a barrel and a cloth pressing mechanism, and the frame is fixedly connected to the first frame; a secondary material laying trolley, a material feeding hose, a diversion hard pipe and a sludge recovery device are also arranged in the first frame, The sludge recovery device includes a sludge recovery trough and a sludge recovery conveying mechanism, which are used to collect the dried sludge; the secondary material paving trolley includes an upper car body and a lower car body that can move relative to each other, and the diversion hard pipe is connected to the upper car body through a feed hose; the second skid-mounted assembly includes a second frame of a rectangular structure, and a sludge pumping device is arranged in the second frame. The sludge pumping device is fixedly connected to the second frame, and the connecting hose is detachably connected to the diversion hard pipe and the sludge pumping device, so that the sludge pumping device can output the sludge to be dried to the filter cloth through the connecting hose, the diversion hard pipe, the feed hose and the upper car body in sequence.

[0007] When transporting, assembling and disassembling the skid-mounted sludge dryer provided by the present invention, there is no need to remove the devices contained in the first skid-mounted assembly from the first frame, and there is no need to remove the devices contained in the second skid-mounted assembly from the second frame. It is only necessary to disconnect the connection between the devices contained in the first skid-mounted assembly and the devices contained in the second skid-mounted assembly, for example, to remove the connecting hose, thereby achieving high efficiency in transportation, assembly and disassembly.

[0008] A hydraulic oil tank mounting frame is provided on the upper side of the first frame, and the hydraulic oil tank of the hydraulic device is provided on the hydraulic oil tank mounting frame. In order to facilitate the maintenance of the devices contained in the first skid-mounted assembly, the skid-mounted sludge dryer also includes a maintenance frame, which includes a ladder, a pedal and a guardrail. The pedal is arranged around the upper side of the first frame, and the inner side of the pedal is fixedly connected to the outer side of the first frame in a detachable manner. The guardrail is arranged on the outer side of the pedal, and the guardrail is provided with a notch corresponding to the ladder, and the ladder is used to connect the pedal and the ground.

[0009] In order to facilitate the lifting and transportation of the first skid-mounted assembly and the second skid-mounted assembly, lifting ears are provided on the first frame and the second frame.

[0010] In addition to the rectangular structure skeleton composed of the horizontal tube and the vertical tube, the first frame also includes a bottom plate, which is fixed to the lower side of the first frame so as to fix the diversion hard pipe. The lower part of the sub-frame and the diversion hard pipe are fixed on the bottom plate, the diversion hard pipe is located in the sub-frame, the feed end of the diversion hard pipe is connected to the connecting hose, and the discharge end of the diversion hard pipe is connected to the supply hose.

[0011] The installation position of the secondary paving trolley is designed according to the structure of the secondary paving trolley. For example, the secondary paving trolley also includes a bottom bracket, which is fixed on the sub-frame and the frame. A bottom optical axis track is provided on the upper side of the bottom bracket, which extends forward from the sub-frame to the rear side of the frame. The bottom vehicle body can be installed on the bottom optical axis track so as to move forward and backward, so that the bottom vehicle body can move forward from the sub-frame to the mud paving position; an upper optical axis track is provided on the upper side of the bottom vehicle body, and the upper vehicle body can be installed on the upper optical axis track so as to move forward and backward, so that the upper vehicle body can move forward and backward relative to the bottom vehicle body to pave mud after the bottom vehicle body moves to the mud paving position. The secondary paving trolley has a compact structure, and the optical axis track is used to guide the forward and backward movement of the bottom vehicle body and the upper vehicle body, which can improve the movement performance of the trolley when the weight is unbalanced in the forward and backward directions.

[0012] In order to make the frame and sub-frame more stable and less prone to shaking, the lower part of the frame is fixedly connected to the lower side of the first frame, and the upper part of the frame and the upper part of the sub-frame are respectively fixedly connected to the inner side of the first frame.

[0013] The roller group includes a floating roller, which is arranged at the front side of the subframe. Preferably, the floating roller is mounted on a floating seat, and a driving device for adjusting the position of the floating seat in the up and down direction is installed on the subframe; the roller frame device also includes a mud scraping mechanism, which includes a scraper and a tension spring, and the scraper is rotatably connected to the floating seat, so as to move up and down together with the floating roller, and the tension spring is respectively connected to the subframe and the scraper, so as to pull the scraper to rotate when the floating seat moves up, so that the scraper presses the filter cloth passing between the scraper and the floating roller, and scrapes off the sludge on the filter cloth. The driving device can realize accurate and convenient adjustment of the position of the floating roller in an electronically controlled manner, and change the inclination angle of the filter cloth when recovering dry mud, so that the inclination angle is the most suitable angle for the current sludge. The mud scraping mechanism can realize the scraping of the dry mud that remains on the filter cloth and does not fall off naturally, thereby improving the sludge recovery rate and the cleanliness of the filter cloth.

[0014] The subframe is equipped with a reeling mechanism for reeling in the filter cloth and an edge sucker for aligning the filter cloth with the reeling mechanism during the reeling process. When recovering dry mud, the pressing of the filter cloth by the scraper is also conducive to the correction of the filter cloth by the edge sucker, thus improving the neatness of the recovered filter cloth on the reeling mechanism.

[0015] In order to realize online cleaning of the filter cloth and improve the working efficiency, a cleaning device is also provided on the subframe for cleaning the filter cloth when the filter cloth is recovered. There is a cloth washing space in the subframe, and the front side, upper side, lower side, left side and right side of the cloth washing space are respectively provided with a front water baffle, an upper water baffle, a water collecting tray, a left water baffle and a right water baffle. The roller group transports the filter cloth from the upper rear to the lower front in the cloth washing space, and divides the cloth washing space into a front upper space and a rear lower space; the cleaning device includes an upper water spray device and an upper support plate located in the front upper space and a lower water spray device and a lower support plate located in the rear lower space, the upper support plate is arranged opposite to the lower water spray device, and the lower support plate is arranged opposite to the upper water spray device, the upper support plate and the lower support plate are used to support the filter cloth when the upper water spray device and the lower water spray device spray water on the filter cloth, and the upper support plate and the lower support plate are provided with drainage holes; the water collecting tray is provided with a drainage port for drainage. The spraying directions of the upper and lower water spraying devices are adjustable, as are the distances between the upper support plate and the lower water spraying device, and between the lower support plate and the upper water spraying device, so that the angle and distance of the cleaning device for flushing the filter cloth can be adjusted to suit different sludges.

[0016] The second frame is also provided with a clean water tank, a cleaning pump, a self-priming pump, a sludge stirring device, a sludge delivery pump, a chemical stirring barrel and a chemical delivery pump. The cleaning pump and the self-priming pump are respectively connected to the clean water tank. The cleaning pump is detachably connected to the cleaning device for supplying water to the cleaning device. When the first skid-mounted assembly and the second skid-mounted assembly are disassembled, the connection between the cleaning pump and the cleaning device needs to be disconnected. The self-priming pump is connected to the sludge stirring device for adding water to the sludge stirring device; the chemical delivery pump is connected to the chemical stirring barrel and the sludge stirring device for adding the chemical in the chemical stirring barrel to the sludge stirring device; the sludge delivery pump is connected to the sludge stirring device and the sludge pumping device for delivering the stirred sludge in the sludge stirring device to the sludge pumping device.

[0017] In order to facilitate observation of the sludge pumping device and the sludge stirring device, the second skid-mounted assembly includes a ladder. The feed end of the diversion hard pipe is arranged toward the left side of the first frame, and the discharge port of the sludge pumping device is arranged toward the right side of the second frame, so that the first skid-mounted assembly and the second skid-mounted assembly can be arranged in parallel at a close distance; the chemical stirring barrel and the clean water tank are located in parallel in front of the sludge pumping device, the sludge pumping device includes a first device along the left-right direction and a second device along the front-back direction, the second device is located in front of the right of the first device, the sludge stirring device and a ladder are located on the left side of the second device, the sludge stirring device is located in front of the ladder, the sludge conveying pump, the self-priming pump, the chemical conveying pump and the cleaning pump are located in front of the sludge stirring device and the second device, and the chemical stirring barrel and the clean water tank are located in front of the sludge conveying pump, the self-priming pump, the chemical conveying pump and the cleaning pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional view of a skid-mounted sludge dryer according to an embodiment of the present invention; Figure 2 for Figure 1 The structural exploded view of the skid-mounted sludge dryer shown; Figure 3 for Figure 2 An exploded view of the structure of the first skid-mounted assembly is shown; Figure 4 for Figure 2 An exploded view of the structure of the second skid assembly shown; Figure 5 and 6 For transportation Figure 2 Side and top views of the first skid assembly shown; Figure 7 and 8 For transportation Figure 2 Side and top views of the second skid assembly shown; Figure 9-1 and 9-2 They are Figure 3 The three-dimensional views of the roller frame device shown in different viewing angles; Figure 9-3 for Figure 3 An exploded view of the roller stand assembly shown; Figure 9-4 for Figure 3 A cross-sectional view of the roller frame device and the filter cloth shown; Figure 9-5 for Figure 3 A three-dimensional view of the roller frame device after removing the upper, left and right water retaining plates; Figure 9-6 for Figure 9-4 The schematic diagram of the upper and lower water spray devices shown spraying water in the conveying direction of the filter cloth. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and one of the embodiments of the present invention.

[0020] See also Figure 1 A skid-mounted sludge dryer includes a first skid-mounted assembly A, a second skid-mounted assembly B, an inspection frame C and a connecting hose D. The inspection frame C is detachably fixed to the frame (first frame A1) of the first skid-mounted assembly A, which is convenient for personnel to observe the conditions of the devices contained in the first skid-mounted assembly A and to inspect the devices contained in the first skid-mounted assembly A. The inspection frame C includes a ladder C1, a pedal C2 and a guardrail C3. The pedal C2 is arranged around the upper side of the first skid-mounted assembly A for personnel to walk on. The inner side of the pedal C2 is detachably fixedly connected to the outer side of the first frame A1. The guardrail C3 is arranged on the outer side of the pedal C2 to prevent personnel from stepping on the air and falling. The guardrail C3 is provided with a notch corresponding to the ladder C1. The ladder C1 connects the pedal C2 with the ground, which is convenient for personnel to climb onto the pedal C2. For the convenience of transportation, the ladder C1, the pedal C2 and the guardrail C3 are all assembled structures.

[0021] The first skid-mounted assembly A includes a diverter pipe A2, the feed end of which faces the left side of the first skid-mounted assembly A. The second skid-mounted assembly B includes a sludge pumping device B2, the discharge end of which faces the right side of the second skid-mounted assembly B. The feed end of the diverter pipe A2 is connected to the discharge end of the sludge pumping device B2 via a connecting hose D. The sludge outputted by the sludge pumping device B2 is inputted into the diverter pipe A2 via the connecting hose D, thereby realizing the transmission of the sludge from the second skid-mounted assembly B to the first skid-mounted assembly A. Figure 2 Since the connecting hose D is a hose and not a hard pipe, even if the feed end of the diversion hard pipe A2 is not aligned with the discharge end of the sludge pumping device B2, the connecting hose D can be used to smoothly connect the diversion hard pipe A2 to the sludge pumping device B2, thereby improving the flexibility of placing the first skid-mounted assembly A and the second skid-mounted assembly B.

[0022] See also Figure 3 The devices contained in the first skid-mounted assembly A are installed in the first frame A1 of a rectangular structure. The first frame A1 is a frame composed of horizontal tubes and vertical tubes. The position where the horizontal tubes and the vertical tubes are connected is provided with a short oblique tube for reinforcement. A bottom plate A11 is provided on the lower side of the first frame A1. The bottom plate A11 is provided with mounting holes for fixing the roller frame device A3 and the diversion hard pipe A2. A mounting position for the filter press A4 is also provided on the lower side of the first frame A1. The frame of the filter press A4 is fixed on the mounting position. In order to prevent the filter press A4 and the roller frame device A3 from shaking during transportation and operation, a short horizontal tube A12 is provided on the upper side of the first frame A1, which is used to fix the left and right sides of the filter press A4 and the roller frame device A3 to the inner side of the first frame A1.

[0023] The sludge recovery trough A61 of the sludge recovery device A6 is fixedly connected to the lower side of the first frame A1 between the filter press A4 and the roller frame device A3. The sludge recovery device A6 also includes a sludge recovery conveying mechanism A62 located on the right side of the sludge recovery trough A61 and the filter press A4. The rear end of the sludge recovery conveying mechanism A62 is connected to the sludge recovery trough A61, and the front end of the sludge recovery conveying mechanism A62 extends out of the first frame A1.

[0024] The filter press A4 is a stacked filter press, including a frame A41, a hydraulic device A42, a barrel A43 and a cloth pressing mechanism. The hydraulic device A42 includes a hydraulic cylinder and a hydraulic oil tank. A hydraulic oil tank mounting frame A13 for placing the hydraulic oil tank is provided on the upper side of the first frame A1. The barrel A43 is used to accommodate the folded filter cloth and the sludge laid on the filter cloth. The hydraulic cylinder is used to compress the stacked filter cloth and sludge in the barrel A43 in the up and down directions, so that the moisture in the sludge is pressed out and discharged from the barrel A43 through the drain pipe t1 connected to the right side of the barrel A43. The cloth pressing mechanism is used to press the filter cloth when folding the filter cloth and assist in the folding of the filter cloth. A lifting platform is provided in the barrel A43 to support the stacked filter cloth and sludge. The structure and principle of the filter press A4 can refer to the patent document CN221094005U.

[0025] See also Figures 9-1 to 9-4 The roller frame device A3 includes a subframe A31, on which a roller group A32 is provided. The roller group A32 is distributed outside and inside the subframe A31 and is used to convey the filter cloth 100. Except for a floating roller A321, the positions of other rollers in the roller group A32 are fixed. The floating roller A321 is located at the front side of the subframe A31 and is controlled by a driving device A323. When the floating roller A321 is located at different positions in the up and down directions, the inclination angle of the filter cloth 100 from the barrel A43 to the floating roller A321 is different. In addition to the roller group A32, the subframe A31 is also provided with a winding mechanism A34, an edge suction device A35 and a spreading roller A36. The front end of the filter cloth 100 is fixed on the lifting platform in the barrel A34. When spreading the mud, the filter cloth 100 is pulled forward from the winding mechanism A34. After the filter press A4 dries the sludge, the winding mechanism A34 retracts the filter cloth 100 from the barrel A43. Before recovering the filter cloth, the position of the floating roller A321 is adjusted to change the inclination angle of the filter cloth 100 from the barrel A43 to the floating roller A321, so that the inclination angle is most suitable for the current dry mud shedding.

[0026] The floating roller A321 is mounted on a floating seat A322, and the driving device A323 is directly connected to the floating seat A322. The floating seat A322 is floated up and down to change the position of the floating roller A321. The roller frame device A3 also includes a scraper mechanism A37, which includes a scraper A371 and a tension spring A372. The scraper A371 is rotatably connected to the floating seat A322, so as to move up and down together with the floating roller A321. The tension spring A372 is respectively connected to the subframe A31 and the scraper A371 to pull the scraper A371 to rotate when the floating seat A322 moves up, so that the scraper A371 presses the filter cloth 100 passing between the scraper A371 and the floating roller A321, and scrapes off the residual sludge on the filter cloth 100.

[0027] The subframe A31 is provided with a cleaning device A33 for cleaning the filter cloth 100 when the filter cloth is recovered. The cleaning device A33 cleans the filter cloth 100 in the cloth-washing space A310 in the subframe A31. The roller group A32 allows the filter cloth 100 to detour in the cloth-washing space A310 and transport it from the upper rear to the lower front, dividing the cloth-washing space A310 into an upper front space and a lower rear space. The cleaning device A33 includes a water supply pipe A331 fixed on the subframe A31, an upper water spray device A332 and an upper support plate A333 located in the upper front space, and a lower water spray device A334 and a lower support plate A335 located in the lower rear space. The upper support plate A333 is arranged opposite to the lower water spray device A334, and the lower support plate A335 is arranged opposite to the upper water spray device A332. In order to clean the filter cloth 100, the upper water spray device A333 and the lower water spray device A334 are high-pressure water spray devices, which have a greater impact force on the filter cloth 100. The upper support plate A333 and the lower support plate A335 are used to support the filter cloth 100 when the upper water spray device A333 and the lower water spray device A334 spray water to the filter cloth 100. Figure 9-3 The upper support plate A333 and the lower support plate A335 are densely covered with drainage holes h, and the upper water spray device A333 and the lower water spray device A334 have a row of nozzles n. The nozzles n of the upper water spray device A333 face downward and backward, and the nozzles n of the lower water spray device A334 face upward and forward. Figure 9-5 The upper water spray device A333 and the lower water spray device A334 are fixed to the subframe A31 by a locking assembly (including U-shaped bolts u and corresponding nuts and spacers). After loosening the locking assembly, the direction of the nozzle n can be changed by twisting the upper water spray device A333 and the lower water spray device A334, so that the nozzle n sprays water in the direction i of the filter cloth conveying. The water flow hits the sludge on the filter cloth 100 head-on. Compared with flushing along the direction i of the filter cloth conveying, flushing in the direction i of the filter cloth conveying makes it easier to separate the sludge from the filter cloth 100. On the other hand, when flushing in the direction i of the filter cloth conveying, compared with flushing in the direction i of the filter cloth conveying, Figure 9-4 As shown, the flushing is perpendicular to the filter cloth 100. The inclined water flow can cover a larger area of ​​the filter cloth 100 surface, and can clean the filter cloth 100 more comprehensively. The water flow can also flush the sludge against the conveying direction i of the filter cloth, and the sludge is mixed in the water and flows away from the left and right sides of the filter cloth 100.

[0028] See also Figure 9-5, the support plate (upper support plate A333 / lower support plate A335) is installed on the water spray device (lower water spray device A334 / upper water spray device A333) through a connecting assembly (including left and right connecting plates p), and the connecting plate p is fixed to the water spray device through a first fixing assembly (including two bolts s arranged oppositely). After loosening the bolts s, the connecting plate p and the support plate can rotate relative to the water spray device together, so that after adjusting the water spray direction of the water spray device, the support plate can still be parallel to the filter cloth. A plurality of strip holes p1 are opened on the connecting plate p, and the support plate is fixed to the connecting plate p through a second fixing assembly (including bolts passing through the strip holes p1 and corresponding nuts), so that the spacing between the support plate and the nozzle n is also adjustable. The appropriate spacing can ensure that the water flow reaches the filter cloth 100 at an appropriate speed and impact force. If the spacing is too large and the spray height is too high, the speed of the water flow will gradually decrease under the action of gravity, and the impact force will be insufficient when reaching the filter cloth 100, and the impurities on the filter cloth 100 cannot be effectively washed away. On the contrary, if the spacing is too small and the jet height is too low, the impact force of the water flow may be too strong, which may damage the filter cloth 100, such as causing the fibers of the filter cloth 100 to break or enlarging the filter holes on the filter cloth 100, affecting the filtering accuracy and service life of the filter cloth 100. On the other hand, a suitable jet height enables the water flow to evenly cover the surface of the filter cloth 100 along the width direction of the filter cloth 100. An inappropriate height will lead to uneven water flow distribution, and some areas will not be flushed, reducing the overall quality of flushing.

[0029] In order to prevent water from spraying outside the cloth washing space A310, a front water baffle a1, an upper water baffle a2, a left water baffle a3 and a right water baffle a4 are respectively provided on the front, upper, left and right sides of the cloth washing space A310. A water collecting pan a5 is provided on the lower side of the cloth washing space A310 to collect the sewage after washing the filter cloth 100. A drainage port for drainage is provided on the water collecting pan a5. The drainage pipe t2 connected to the drainage port is connected to the drainage pipe t1 connected to the barrel A43. The sewage in the two ways is collected and discharged together for treatment. The water source of the cleaning device A33 is the clean water tank B3 arranged in the second frame B1. The clean water in the clean water tank B3 is transported to the cleaning device A33 by the cleaning pump B4 located behind the clean water tank B3.

[0030] The device contained in the first skid-mounted assembly A also includes a secondary material paving trolley A5, which includes a bottom bracket A51, which is fixed on the sub-frame A31 and the frame A41. A bottom optical axis track A52 is provided on the upper side of the bottom bracket A51, and the bottom optical axis track A52 extends forward from the sub-frame A31 to the rear side of the frame A41. The bottom vehicle body A53 is installed on the bottom optical axis track A52 so as to be movable forward and backward, so that the bottom vehicle body A53 can move forward from the sub-frame A31 to the mud paving position, so that the upper vehicle body A54 is located above the sludge recovery trough A61. An upper optical axis track A55 is provided on the upper side of the bottom car body A53, and the upper car body A54 is installed on the upper optical axis track A55 so as to be movable forward and backward, so that after the bottom car body A53 moves to the mud spreading position, the upper car body A54 can move forward and backward relative to the bottom car body A53 to spread the mud, and move back and forth between above the sludge recovery trough A61 and above the barrel A43.

[0031] During the mud spreading process, the bottom car body A53 stops at the mud spreading position, and the sludge flowing into the diverter hard pipe A2 from the feed end of the diverter hard pipe A2 is evenly distributed through the diverter hard pipe A2, and simultaneously input into different feed hoses from different discharge ends of the diverter hard pipe A2, and then input into different mud spreading pipes in the upper car body A54 through the feed hoses, and the discharge port of the upper car body A54 is located at the lower side of the upper car body A54. The upper car body A54 moves forward first, pushing the filter cloth 100, so that the filter cloth 100 forms a U-shaped wrap around the upper car body A54, and then the upper car body A54 moves backward, and while moving, sludge is squeezed out from the mud spreading pipe of the upper car body A54 onto the filter cloth 100 wrapping the upper car body A54. The barrel A43 has a lifting platform for supporting the filter cloth and sludge. After the upper car body A54 is laid with a layer of sludge, the lifting platform descends so that the upper car body A54 can lay the next layer of sludge. When the filter cloth 100 is recovered, the bottom car body A53 and the upper car body A54 are both returned to the subframe A31. Without the shielding of the bottom car body A53 and the upper car body A54, the dried sludge falls off the filter cloth 100 and can directly fall into the sludge recovery trough A61, and is transported by the sludge recovery conveying mechanism A62 to the recovery equipment outside the first skid-mounted assembly A.

[0032] See also Figure 4The devices contained in the second skid assembly B are installed in the second frame B1 of the rectangular structure. The second frame B1 is a frame composed of horizontal pipes and vertical pipes. The chemical mixing barrel B5 and the clean water tank B2 are located in parallel in front of the sludge pumping device B2. The sludge pumping device B2 includes a first device B21 along the left-right direction and a second device B22 along the front-back direction. The second device B22 is located in front of the right of the first device B21. The sludge mixing device B6 and the ladder B7 are located on the left side of the second device B22. The sludge mixing device B6 is located in front of the ladder B7. The sludge conveying pump B8, the self-priming pump B9, the chemical conveying pump B51 and the cleaning pump B4 are located in front of the sludge mixing device B6 and the second device B22. The chemical mixing barrel B5 and the clean water tank B2 are located in front of the sludge conveying pump B8, the self-priming pump B9, the chemical conveying pump B51 and the cleaning pump B4.

[0033] The cleaning pump B4 and the self-priming pump B9 are connected to the clean water tank B2 respectively, and the cleaning pump B4 is connected to the cleaning device A33 in a detachable manner to supply water to the cleaning device A33. The self-priming pump B9 is connected to the sludge stirring device B6 to add water to the sludge stirring device B6. The agent delivery pump B51 is connected to the agent stirring barrel B5 and the sludge stirring device B6 to add the agent in the agent stirring barrel B5 to the sludge stirring device B6. The sludge delivery pump B8 is connected to the sludge stirring device B6 and the sludge pumping device B2 to deliver the sludge stirred in the sludge stirring device B6 to the sludge pumping device B2. Figures 1 to 8 The pipelines for transporting sludge, clean water or chemicals between all devices are not drawn out.

[0034] The sludge to be conditioned is added to the sludge stirring device B6 from the feeding port B61 of the sludge stirring device B6, the clean water tank B2 adds water to the sludge stirring device B6 through the self-priming pump B9, the agent mixing barrel B5 (used to mix dry agents with water) adds drugs to the sludge stirring device B6 through the agent delivery pump B51, and the stirred sludge in the sludge stirring device B6 is delivered from the buffer bin B221 of the second device B22 to the sludge pumping device B2 through the sludge delivery pump B8. The personnel on the ladder B7 can observe the sludge in the sludge stirring device B6 from the feeding port B61, and observe the sludge in the sludge pumping device B2 from the buffer bin B221.

[0035] The first frame A1 and the second frame A2 are both provided with lifting ears for lifting, and the first skid assembly A can be lifted and placed on the transport vehicle 200 by lifting. Figure 5 and 6 ), hoist the second skid assembly B and place it on the transport vehicle 300 ( Figure 7 and 8), the pipe (such as the connecting hose D) connecting the device included in the first skid-mounted assembly A with the device included in the second skid-mounted assembly B can be removed and placed on the transport vehicle 200 or the transport vehicle 300, and the maintenance frame C can be disassembled and placed on the transport vehicle 200 or the transport vehicle 300.

[0036] Those skilled in the art can change the structures of the devices included in the first skid-mounted assembly A and the devices included in the second skid-mounted assembly B as needed, such as changing the structure of the secondary material spreading trolley A5 and the structure of the roller frame device A3. Those skilled in the art can also add or subtract devices as needed, such as cancelling the cleaning device A33, cancelling the reagent stirring barrel B5 (instead of directly adding reagents to the sludge stirring device B6 from outside the second skid-mounted assembly B), and cancelling the sludge stirring device B6 (instead of directly inputting the conditioned sludge from outside the second skid-mounted assembly B into the sludge pumping device B2).

[0037] In order to clearly describe the relative positional relationship between different components of the skid-mounted sludge dryer and between different parts of the same component, this application document places the skid-mounted sludge dryer in a coordinate system for description. The coordinate system includes six directions: up, down, front, back, left, and right. The relationship between the coordinate system and the skid-mounted sludge dryer is shown in Figure 1 .

Claims

1. A skid-mounted sludge dryer, characterized in that: It includes a first skid-mounted assembly, a second skid-mounted assembly and a connecting hose. The first skid-mounted assembly includes a first frame of a rectangular parallelepiped structure. A roller frame device for conveying filter cloth and a stacked filter press for dehydrating sludge are arranged in the first frame from back to front. The roller frame device includes a subframe and a roller group arranged on the subframe, and the subframe is fixedly connected to the first frame; the stacked filter press includes a frame, a hydraulic device, a barrel and a cloth pressing mechanism, and the frame is fixedly connected to the first frame; the first frame is also provided with a secondary material paving trolley, a feeding hose, a diversion hard pipe and a sludge recovery device. The sludge recovery device includes a sludge recovery trough and a sludge recovery conveying mechanism for collecting dried sludge; the secondary material paving trolley includes an upper body and a lower body that can move relatively, and the diversion hard pipe is connected to the upper body through a feeding hose; The second skid-mounted assembly includes a second frame of a rectangular structure, in which a sludge pumping device is provided, the sludge pumping device is fixedly connected to the second frame, and the connecting hose is detachably connected to the diversion hard pipe and the sludge pumping device, respectively, so that the sludge pumping device can output the sludge to be dried to the filter cloth via the connecting hose, the diversion hard pipe, the feed hose and the upper vehicle body in sequence.

2. The skid-mounted sludge dryer according to claim 1, characterized in that: A hydraulic oil tank mounting frame is provided on the upper side of the first frame, and the hydraulic oil tank of the hydraulic device is arranged on the hydraulic oil tank mounting frame; the skid-mounted sludge dryer also includes a maintenance frame, which includes a ladder, a pedal and a guardrail. The pedal is arranged around the upper side of the first frame, and the inner side of the pedal is fixedly connected to the outer side of the first frame in a detachable manner. The guardrail is arranged on the outer side of the pedal, and the guardrail is provided with a notch corresponding to the ladder, and the ladder is used to connect the pedal and the ground.

3. The skid-mounted sludge dryer according to claim 1, characterized in that: The first frame and the second frame are provided with lifting ears for lifting the first skid-mounted assembly and the second skid-mounted assembly.

4. The skid-mounted sludge dryer according to claim 1, characterized in that: The lower part of the subframe and the diversion tube are fixed on a bottom plate, which is fixed on the lower side of the first frame. The diversion tube is located in the subframe, the feed end of the diversion tube is connected to the connecting hose, and the discharge end of the diversion tube is connected to the supply hose.

5. The skid-mounted sludge dryer according to claim 4, characterized in that: The lower part of the frame is fixedly connected to the lower side of the first frame, and the upper part of the frame and the upper part of the sub-frame are fixedly connected to the inner side of the first frame respectively.

6. The skid-mounted sludge dryer according to claim 1, characterized in that: The secondary paving trolley also includes a bottom bracket, which is fixed on the sub-frame and the frame. A bottom optical axis track is provided on the upper side of the bottom bracket, which extends forward from the sub-frame to the rear side of the frame. The bottom vehicle body is installed on the bottom optical axis track so as to be movable forward and backward, so that the bottom vehicle body can move forward from the sub-frame to the mud paving position; an upper optical axis track is provided on the upper side of the bottom vehicle body, which is installed on the upper optical axis track so as to be movable forward and backward, so that the upper vehicle body can move forward and backward relative to the bottom vehicle body to pave the mud after the bottom vehicle body moves to the mud paving position.

7. The skid-mounted sludge dryer according to claim 1, characterized in that: The roller group includes a floating roller, which is arranged at the front side of the sub-frame and installed on a floating seat. The sub-frame is equipped with a driving device for adjusting the position of the floating seat in the up and down directions; the roller frame device also includes a mud scraping mechanism, which includes a scraper and a tension spring. The scraper is rotatably connected to the floating seat, so that it moves up and down together with the floating roller. The tension spring is respectively connected to the sub-frame and the scraper to pull the scraper to rotate when the floating seat moves up, so that the scraper presses the filter cloth passing between the scraper and the floating roller to scrape off the sludge on the filter cloth.

8. The skid-mounted sludge dryer according to claim 7, characterized in that: The subframe is provided with a reeling mechanism for reeling in the filter cloth and an edge suction device for aligning the filter cloth with the reeling mechanism during the reeling process.

9. The skid-mounted sludge dryer according to claim 7, characterized in that: The sub-frame is also provided with a cleaning device for cleaning the filter cloth; there is a cloth washing space in the sub-frame, and the front side, upper side, lower side, left side and right side of the cloth washing space are respectively provided with a front water baffle, an upper water baffle, a water collecting tray, a left water baffle and a right water baffle; the roller group transports the filter cloth from the upper rear to the lower front in the cloth washing space, and divides the cloth washing space into an upper front space and a lower rear space; the cleaning device comprises an upper water spray device and an upper support plate located in the upper front space and a lower water spray device and a lower support plate located in the lower rear space, the upper support plate is arranged opposite to the lower water spray device, and the lower support plate is arranged opposite to the upper water spray device, the upper support plate and the lower support plate are used to support the filter cloth when the upper water spray device and the lower water spray device spray water to the filter cloth, and the upper support plate and the lower support plate are provided with drainage holes; a drainage port for drainage is provided on the water collecting tray.

10. The skid-mounted sludge dryer according to claim 9, characterized in that: The upper water spray device and the lower water spray device are respectively fixed on the subframe by a locking assembly. After releasing the locking assembly, the upper water spray device and the lower water spray device can be rotated to change the angle between the water spray direction of the upper water spray device and the lower water spray device and the filter cloth.

11. The skid-mounted sludge dryer according to claim 10, characterized in that: The lower support plate is connected to the upper water spray device through a connecting assembly, and the connecting assembly is fixed to the upper water spray device through a first fixing assembly. After the first fixing assembly is released, the connecting assembly can be rotated to change the angle between the water spraying direction of the upper water spray device and the lower support plate. The lower support plate is fixed to the connecting assembly through a second fixing assembly. After the second fixing assembly is released, the lower support plate can be moved to change the distance between the upper water spray device and the lower support plate; the connection method between the upper support plate and the lower water spray device is the same as the connection method between the lower support plate and the upper water spray device.

12. The skid-mounted sludge dryer according to claim 9, characterized in that: The second frame is also provided with a clean water tank, a cleaning pump, a self-priming pump, a sludge stirring device, a sludge delivery pump, a chemical stirring barrel and a chemical delivery pump. The cleaning pump and the self-priming pump are respectively connected to the clean water tank, and the cleaning pump is detachably connected to the cleaning device for supplying water to the cleaning device. The self-priming pump is connected to the sludge stirring device and is used to add water into the sludge stirring device; The reagent delivery pump is connected to the reagent stirring barrel and the sludge stirring device, and is used to add the reagent in the reagent stirring barrel into the sludge stirring device; The sludge conveying pump is connected to the sludge stirring device and the sludge pumping device, and is used for conveying the sludge stirred in the sludge stirring device to the sludge pumping device.

13. The skid-mounted sludge dryer according to claim 12, characterized in that: The feed end of the diversion hard pipe is arranged toward the left side of the first frame, and the discharge port of the sludge pumping device is arranged toward the right side of the second frame; the chemical stirring barrel and the clean water tank are located side by side in front of the sludge pumping device, the sludge pumping device includes a first device along the left-right direction and a second device along the front-back direction, the second device is located in front of the right of the first device, the sludge stirring device and a ladder are located on the left side of the second device, the sludge stirring device is located in front of the ladder, the sludge conveying pump, self-priming pump, chemical conveying pump and cleaning pump are located in front of the sludge stirring device and the second device, and the chemical stirring barrel and the clean water tank are located in front of the sludge conveying pump, self-priming pump, chemical conveying pump and cleaning pump.

Images