A wet material hot press dewatering system and method of operation thereof

Abstract

The application discloses a kind of wet material hot-pressing dewatering system and its operating method, it is related to wet material dewatering technical field, including feeding device, mould transmission device, jacking device, hot-pressing dewatering device, drainage device, heating device, pusher and dry material conveying device, hot-pressing dewatering device includes base, mounting bracket, extrusion driving part, hot-pressing top plate, multiple hot-pressing plates, multiple connecting mechanisms, multiple mould frames, multiple elastic support mechanisms and multiple first limiting mechanisms, feeding device is used to feed wet material into mould frame, each mould transmission mechanism is used to drive one mould frame left and right movement, the lower portion of the side of the rack away from hot-pressing dewatering device is provided with jacking device, pusher is used to push dry material, and then make dry material fall on dry material conveying device.The wet material hot-pressing dewatering system and its operating method can realize the deep dewatering of non-pumping wet material, and create conditions for subsequent hot dry dewatering energy saving.

Description

Technical Field

[0001] This invention relates to the field of wet material dehydration technology, and in particular to a wet material hot pressing dehydration system and its operation method. Background Technology

[0002] After the slurry is dewatered by a traditional dewatering device, a high moisture content material is usually obtained. The high moisture content of the material causes great trouble for subsequent thermal drying and dewatering. It requires crushing and dispersing, longer drying time, higher drying energy consumption, and larger equipment investment and land area. However, subsequent thermal drying and dewatering requires the material to have as low a moisture content as possible, which can save more energy and costs. Moreover, the high moisture content material cannot be pumped. There is no device in the current technology for further dewatering of non-pumpable high moisture content materials. Summary of the Invention

[0003] To address the above technical problems, this invention provides a wet material hot pressing dehydration system and its operation method, which can achieve deep dehydration of non-pumped wet materials, creating conditions for subsequent thermal drying dehydration to save energy and reduce costs.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides a hot-press dewatering system for wet materials, including a feeding device, a mold conveying device, a lifting device, a hot-press dewatering device, a drainage device, a heating device, a pushing device, and a dry material conveying device. The hot-press dewatering device includes a base, a mounting frame, an extrusion drive component, a hot-press top plate, multiple hot-press plates, multiple connecting mechanisms, multiple mold frames, multiple elastic support mechanisms, and multiple first limiting mechanisms. The mounting frame is disposed on the upper part of the base, and the extrusion drive component is disposed on the top of the mounting frame. The lower end of the extrusion drive component is connected to the hot-press top plate. The hot-press top plate and multiple hot-press plates are arranged sequentially from top to bottom, with the lowest hot-press plate fixed to the base. The hot-press top plate is connected via a... The connecting mechanism is connected to the adjacent hot press plate. Any two adjacent hot press plates are connected by a connecting mechanism. The connecting mechanism and the hot press plate connected to it can move vertically relative to each other. Each hot press plate has a boss at its upper part and an elastic support mechanism on each hot press plate. Each elastic support mechanism is sleeved on the outside of a boss. Each elastic support mechanism has a first limiting mechanism at its upper part. Each elastic support mechanism is used to support a mold frame, and each first limiting mechanism is used to support a mold. The front and rear sides of the frame are limited, and a first filter cloth is provided on the upper part of each mold frame. Each boss can extend into one of the mold frames. A second filter cloth is provided on the lower part of the hot pressing top plate and the other hot pressing plates except the bottom one. When each second filter cloth and the first filter cloth on the adjacent mold frame come into contact, a filter cloth cavity can be formed. A drainage cavity is provided inside the boss, and a water leakage hole communicating with the drainage cavity is provided on the top of the boss. A horizontal drain pipe communicating with the drainage cavity is provided on the hot pressing plate, and the horizontal drain pipe is connected to the drainage device. The heating device is used to provide heat to the hot pressing top plate and the hot pressing plate. The mold transfer device includes... The machine frame and multiple mold transfer mechanisms arranged sequentially from top to bottom on the machine frame are provided. The machine frame is located on one side of the hot press dehydration device. Each mold transfer mechanism corresponds to a hot press plate. The feeding device is used to feed wet material into the mold frame. Each mold transfer mechanism is used to drive one of the mold frames to move left and right, thereby moving each mold frame to the upper part of an elastic support mechanism. The lower part of the machine frame away from the hot press dehydration device is provided with a lifting device, which is used to push the dry material obtained by hot press dehydration in each mold frame upward. The pushing device is used to push the dry material, thereby causing the dry material to fall onto the dry material conveying device.

[0006] Preferably, there are two mold transfer devices, two lifting devices, two pushing devices, and two dry material conveying devices. The two mold transfer devices are respectively located on the left and right sides of the hot-press dehydration device. Each pushing device is located in front of or behind one of the mold transfer devices. Each dry material conveying device is located on the side of one of the mold transfer devices away from the pushing device. The feeding device includes a main feeder, a spreading machine, and two quantitative feeders. The main feeder is located above the spreading machine, and the outlet of the main feeder is connected to the inlet of the spreading machine. The spreading machine is located above the two quantitative feeders, and the two outlets of the spreading machine are respectively connected to the inlets of the two quantitative feeders. The outlet of each quantitative feeder is located above the side of one of the mold transfer devices that is closer to the hot-press dehydration device.

[0007] Preferably, the elastic support mechanism includes a support frame and multiple elastic connecting components. Multiple first mounting holes are arranged sequentially from front to back on both sides of the hot press plate. Each elastic connecting component includes a guide rod and a spring sleeved on the guide rod. Multiple second mounting holes are provided on the support frame. The lower end of each guide rod is fixed in one of the first mounting holes, and the upper end of each guide rod passes through one of the second mounting holes. The support frame can be sleeved on the boss. The first limiting mechanism includes two first limiting components, which are respectively disposed on the support frame. On the front and rear sides of the upper part of the frame, two first limiting components are used to limit the front and rear sides of the mold frame; the lower part of the hot pressing top plate and the other hot pressing plates except the bottommost hot pressing plate are all provided with second limiting mechanisms, which are used to limit the left and right sides of the mold frame when the hot pressing top plate and the other hot pressing plates except the bottommost hot pressing plate are pressed down; the second limiting mechanism includes two second limiting components, and one second limiting component is provided on the lower left and right sides of the hot pressing top plate and the other hot pressing plates except the bottommost hot pressing plate.

[0008] Preferably, the connecting mechanism includes multiple connecting components, each connecting component including a connecting screw and two nuts. The front and rear sides of the hot press plate are provided with multiple lower through holes arranged sequentially from left to right for the lower end of the connecting screw to pass through. The front and rear sides of the hot press plate are provided with multiple first upper through holes arranged sequentially from left to right for the upper end of the connecting screw to pass through. Except for the lowest hot press plate, the front and rear sides of the other hot press plates are provided with multiple second upper through holes arranged sequentially from left to right for the upper end of the connecting screw to pass through. In the connecting mechanism for connecting the hot press plate and the hot press plate, the upper and lower ends of the connecting screw pass through the first upper through hole and the lower through hole respectively and are fitted with the nuts. In the connecting mechanism for connecting two adjacent hot press plates, the upper and lower ends of the connecting screw pass through the second upper through hole and the lower through hole respectively and are fitted with the nuts.

[0009] Preferably, each of the hot press plates is provided with a first guide mechanism on its upper part. The first guide mechanism includes multiple first guide posts. Multiple first guide posts are provided on the front and rear sides of the upper part of the hot press plate, arranged sequentially from left to right. Multiple first guide holes are provided on the hot press plate for the first guide posts to pass through. Except for the lowermost hot press plate, each of the other hot press plates is provided with a second guide hole for the first guide posts to pass through.

[0010] Preferably, the mold transfer mechanism includes a first linear telescopic drive component, a horizontal push rod, an electromagnet, and two L-shaped guide plates. The two L-shaped guide plates are symmetrically arranged on the front and rear sides of the frame. Each L-shaped guide plate includes a horizontal plate and a vertical plate located on the upper part of the outer side of the horizontal plate. The two L-shaped guide plates are used to support and guide the mold frame. The first linear telescopic drive component is disposed on the frame and located on the side away from the hot-press dehydration device. The horizontal push rod is disposed on the side of the first linear telescopic drive component close to the hot-press dehydration device. The electromagnet is disposed on the side of the horizontal push rod close to the hot-press dehydration device. When the electromagnet is energized, it can attract the mold frame.

[0011] Preferably, the lifting device includes a base plate, a second linear telescopic drive component, a second guide mechanism, and multiple lifting mechanisms. The base plate is disposed at the lower part of the frame. The second guide mechanism includes two guide components respectively disposed on the outer sides of the two L-shaped guide plates. Each guide component includes multiple second guide posts arranged sequentially from left to right, and the lower end of each second guide post is slidably mounted on the base plate. Each lifting mechanism is located below one of the mold transfer mechanisms. Each lifting mechanism includes a support plate and a lifting block disposed in the middle of the support plate. The support plate is fixedly sleeved on the multiple second guide posts. The second linear telescopic drive component is vertically disposed on the upper part of the base plate and is connected to the lowermost support plate.

[0012] Preferably, the pushing device includes a support frame, an air supply mechanism, and multiple pushing and blowing mechanisms arranged sequentially from top to bottom on the support frame. Each pushing and blowing mechanism includes a pushing drive component, a horizontal guide support assembly, a pushing frame, a pushing plate, an air inlet pipe, and a jet pipe. The pushing drive component is mounted on the support frame, the horizontal guide support assembly is located on one side of the support frame, the pushing frame is slidably mounted on the upper part of the horizontal guide support assembly, one end of the pushing frame is connected to the pushing drive component, and the other end of the pushing frame is provided with the pushing plate. The jet pipe is fixed to the pushing frame, and the length direction of the jet pipe is perpendicular to the moving direction of the pushing frame. Multiple lower nozzles are sequentially arranged along the length of the lower part of the jet pipe. The jet pipe is connected to the air supply mechanism through the air inlet pipe, and a pushing frame can extend into the upper part of each mold transfer mechanism.

[0013] Preferably, the hot press plate is provided with a plurality of first heat medium channels arranged sequentially. The outlet of one first heat medium channel and the inlet of the next first heat medium channel in any two adjacent channels are connected by a first connecting pipe to form a first reciprocating meandering channel. The inlet of the first reciprocating meandering channel is connected to a first heat medium inlet pipe, and the outlet of the first reciprocating meandering channel is connected to a first heat medium outlet pipe. The hot press plate is also provided with a plurality of second heat medium channels arranged sequentially. The outlet of one second heat medium channel and the inlet of the next second heat medium channel in any two adjacent channels are connected by a second connecting pipe. The pipes are connected to form a second reciprocating circuit channel. The inlet of the second reciprocating circuit channel is connected to a second heat medium inlet pipe, and the outlet of the second reciprocating circuit channel is connected to a second heat medium outlet pipe. The heating device is an electric heating device or a heat medium heating device. The electric heating device includes an electrical control cabinet and multiple electric heating rods connected to the electrical control cabinet. One of the electric heating rods is inserted into both the first heat medium inlet pipe and the second heat medium inlet pipe. Both the first heat medium inlet pipe and the second heat medium inlet pipe are connected to the heat medium outlet of the heat medium heating device, and both the first heat medium outlet pipe and the second heat medium outlet pipe are connected to the return port of the heat medium heating device.

[0014] The present invention also provides an operating method for a hot pressing dehydration system for wet materials, comprising the following steps:

[0015] Step 1: Place a mold frame on each of the mold transfer mechanisms, and transfer the mold frame to the side near the hot press dehydration device through the mold transfer mechanism. Feed wet material into each of the mold frames through the feeding device to complete the feeding operation. Activate each of the mold transfer mechanisms to transfer each mold frame containing wet material to the top of an elastic support mechanism. Each of the first limiting mechanisms limits the front and rear sides of a mold frame to complete the mold entry action. Activate the extrusion drive component to drive the hot press top plate to move downward. As the hot press top plate and the other hot press plates except the bottommost hot press plate move downward, the second filter cloth below the hot press top plate and the first filter cloth on the adjacent mold frame come into contact and press together to form the filter cloth cavity. This completes the mold closing operation.

[0016] Step 2: Hot pressing dehydration is performed. The heating device provides heat to the hot pressing top plate and the hot pressing plate, increasing the downward pressure applied by the extrusion drive component. The lower surfaces of the hot pressing top plate and the hot pressing plate both press against the adjacent mold frame. The mold frame presses against the elastic support mechanism below it, causing relative movement between the mold frame and the boss below it, which compresses the wet material. After being compressed, the water escapes from the wet material, passes through the first filter cloth in the mold frame and the water leakage hole on the boss, enters the drainage chamber, and then enters the drainage device through the horizontal drainage pipe.

[0017] Step 3: Open the mold. The extrusion drive component drives the hot press top plate to move upward, so that the hot press top plate and all the hot press plates except the bottom hot press plate move upward. After the mold frame is released from pressure, the elastic support mechanism is also released from pressure. The elastic support mechanism automatically moves upward to push the mold frame out to the top of the boss.

[0018] Step 4: After the mold opening is completed, activate each mold transfer mechanism to move each mold frame that has completed hot pressing and dehydration horizontally out of the hot pressing and dehydration device and above the lifting device.

[0019] Step 5: The lifting device extends upward to push the dry material obtained by hot pressing and dehydration in each of the mold frames upward, and the pushing device pushes the dry material so that the dry material falls onto the dry material conveying device.

[0020] Step 6: The lifting device retracts downwards so as not to obstruct the horizontal movement of the mold frame. The mold transfer mechanism is activated to push the demolded mold frames to the side close to the hot press dehydration device. Then the feeding operation in Step 1 is performed, and so on.

[0021] The present invention achieves the following technical effects compared to the prior art:

[0022] The wet material hot-press dehydration system of this invention includes a feeding device, a mold conveying device, a lifting device, a hot-press dehydration device, a drainage device, a heating device, a pushing device, and a dry material conveying device. It adopts a vertical pressing structure, which facilitates simultaneous vertical force and heating dehydration of multi-stage hot-pressing units, resulting in a low mechanical failure rate and high production capacity. Simultaneously, it can achieve hot-press dehydration under high pressure and high temperature, which helps reduce the moisture content of the hot-pressed product and achieves deep dehydration of non-pumped wet materials, creating conditions for energy saving and cost reduction in subsequent thermal drying dehydration. This invention effectively solves the common problems of high energy consumption and high cost in subsequent drying dehydration in traditional pressing dehydration processes, providing a feasible system and method for deep hot-press dehydration of high-moisture wet materials using traditional filter presses, and is easy to promote and apply industrially. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the wet material hot pressing dehydration system provided by the present invention;

[0025] Figure 2 A front sectional view of the hot pressing dehydration device, the mold conveying device, and the pushing device in the wet material hot pressing dehydration system provided by the present invention;

[0026] Figure 3 Rear view of the hot pressing dehydration device, mold conveying device and pushing device in the wet material hot pressing dehydration system provided by the present invention;

[0027] Figure 4 A top view of the hot pressing dehydration device, mold conveying device, and material pushing device in the wet material hot pressing dehydration system provided by the present invention;

[0028] Figure 5 Left view of the hot pressing dehydration device, mold conveying device and pushing device in the wet material hot pressing dehydration system provided by the present invention;

[0029] Figure 6 A top view of the hot press plate in the wet material hot pressing dehydration system provided by the present invention;

[0030] Figure 7 The left view of the hot press plate in the wet material hot pressing dehydration system provided by the present invention;

[0031] Figure 8 This is a top view of the mold frame in the wet material hot pressing dehydration system provided by the present invention;

[0032] Figure 9 A cross-sectional view of the mold frame in the wet material hot pressing dehydration system provided by the present invention;

[0033] Figure 10 This is a left view of the feeding device in the wet material hot pressing dehydration system provided by the present invention;

[0034] Figure 11 This is a top view of the feeding device in the wet material hot pressing dehydration system provided by the present invention.

[0035] Explanation of reference numerals in the attached drawings: 1. Main feeder; 2. Fabric placing machine; 3. Quantitative feeder; 4. Mold transfer device; 41. Vertical support; 42. Lower horizontal support; 43. Upper horizontal support; 44. L-shaped guide plate; 45. First cylinder; 46. First piston rod; 47. Horizontal push rod; 48. Electromagnet; 49. Receiving hopper; 410. Guide plate; 5. Hot pressing dehydration device; 51. Hydraulic station; 52. Oil cylinder; 53. Extrusion piston rod; 54. Base; 55. Movable end plate 56. Third guide post; 57. Hot press plate; 571. Second heat medium inlet pipe; 572. Second heat medium channel; 573. Second connecting pipe; 574. Second heat medium outlet pipe; 575. Drainage chamber; 576. Leakage hole; 577. Horizontal drain pipe; 578. Lower through hole; 579. First mounting hole; 5710. Third mounting hole; 5711. Third threaded hole; 5712. Limiting block; 5713. Second upper through hole; 5714. Second guide hole; 58. Mold Frame; 581, Annular groove; 582, Annular filter cloth pressure strip; 583, First threaded hole; 59, Boss; 510, Hot-pressing top plate; 511, Connecting platform; 512, Support frame; 513, Limiting plate; 514, Guide rod; 515, Spring; 516, Second filter cloth; 517, Connecting screw; 518, Nut; 519, Top plate; 520, First guide post; 6, Drainage branch pipe; 7, Drainage collection pipe; 8, Buffer water tank; 9, Dry material conveying device; 10, Heating supply Device; 11. Pushing device; 111. Air compressor; 112. Main air distribution pipe; 113. Support frame; 114. Pushing cylinder; 115. Horizontal guide rail; 116. Horizontal main rod; 117. Horizontal side rod; 118. Pushing plate; 119. Air inlet pipe; 1110. Jet pipe; 1111. Lower nozzle; 12. Lifting device; 121. Base plate; 122. Second guide column; 123. Second cylinder; 124. Second piston rod; 125. Support plate; 126. Lifting block. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] The purpose of this invention is to provide a hot pressing dehydration system for wet materials and its operation method, which can achieve deep dehydration of non-pumped wet materials, creating conditions for energy saving and cost reduction in subsequent thermal drying dehydration.

[0038] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] like Figures 1-11 As shown, this embodiment provides a wet material hot pressing dehydration system, including a feeding device, a mold conveying device 4, a lifting device 12, a hot pressing dehydration device 5, a drainage device, a heating device 10, a pushing device 11, and a dry material conveying device 9.

[0040] The hot-press dehydration device 5 includes a base 54, a mounting frame, an extrusion drive component, a hot-press top plate 510, multiple hot-press plates 57, multiple connecting mechanisms, multiple mold frames 58, multiple elastic support mechanisms, and multiple first limiting mechanisms. The mounting frame is located on the upper part of the base 54, and the extrusion drive component is located on the top of the mounting frame. The lower end of the extrusion drive component is connected to the hot-press top plate 510. The hot-press top plate 510 and multiple hot-press plates 57 are arranged sequentially from top to bottom. The lowest hot-press plate 57 is fixed to the base 54. The hot-press top plate 510 is connected to the adjacent hot-press plate 57 through a connecting mechanism. Any two adjacent hot-press plates 57 are connected through a connecting mechanism. Vertical relative movement can occur between the connecting mechanism and the connected hot-press top plate 510, and vertical relative movement can occur between the connecting mechanism and the connected hot-press plate 57. Each hot-press plate 57 has a boss 59 on its upper part, and each hot-press plate 57 has a... Each elastic support mechanism is sleeved on the outside of a boss 59. Each elastic support mechanism has a first limiting mechanism on its upper part. Each elastic support mechanism is used to support a mold frame 58. Each first limiting mechanism is used to limit the front and rear sides of a mold frame 58. Each mold frame 58 has a first filter cloth on its upper part. Each boss 59 can extend into a mold frame 58. The lower part of the hot press plate 510 and the other hot press plates 57 except the bottom hot press plate 57 are provided with second filter cloths 516. When each second filter cloth 516 and the first filter cloth on the adjacent mold frame 58 come into contact, they can form a filter cloth cavity. The boss 59 has a drainage cavity 575 inside. The top of the boss 59 has a drain hole 576 communicating with the drainage cavity 575. The hot press plate 57 has a horizontal drain pipe 577 communicating with the drainage cavity 575. The horizontal drain pipe 577 is connected to a drainage device.

[0041] The heating device 10 is used to provide heat to the hot pressing top plate 510 and the hot pressing plate 57; the mold transfer device 4 includes a frame and multiple mold transfer mechanisms arranged sequentially from top to bottom on the frame. The frame is located on one side of the hot pressing dehydration device 5. The mold transfer mechanisms correspond one-to-one with the hot pressing plate 57. The feeding device is used to feed the wet material into the mold frame 58. Each mold transfer mechanism is used to drive a mold frame 58 to move left and right, thereby moving each mold frame 58 to the upper part of an elastic support mechanism. A lifting device 12 is provided on the lower part of the frame away from the hot pressing dehydration device 5. The lifting device 12 is used to push the dry material obtained by hot pressing dehydration in each mold frame 58 upward. The pushing device 11 is used to push the dry material, thereby causing the dry material to fall onto the dry material conveying device 9.

[0042] In this embodiment, the wet material refers to non-pumpable wet material, which means mud or damp powder that cannot be pumped and contains water. Specifically, it includes, but is not limited to, filter cake containing high moisture content and a certain amount of solid particles after processing such as plate and frame filter press dewatering, diaphragm press dewatering, screw press dewatering, and filtration dewatering. It is produced in large quantities in industrial, agricultural, and daily life processes, such as chemical products from various water-based reactions, industrial sludge, desulfurization gypsum, coal washing sludge, tailings sludge, and river silt.

[0043] This embodiment employs a vertical pressing structure, which facilitates simultaneous vertical force and heat-pressing dehydration of multi-stage hot pressing units. This results in a low mechanical failure rate and high production capacity. Simultaneously, it enables high-pressure, high-temperature hot pressing dehydration, reducing the moisture content of the hot-pressed product and achieving deep dehydration of non-pumped wet materials. This creates conditions for energy saving and cost reduction in subsequent thermal drying dehydration. This embodiment effectively solves the common problems of high energy consumption and high cost in subsequent drying dehydration in traditional pressing dehydration processes. It provides a feasible system and method for deep hot pressing dehydration of high-moisture-content wet materials using traditional filter presses, and is easily applicable for industrial-scale promotion.

[0044] In this embodiment, the first filter cloth and the second filter cloth 516 are respectively fixed on the upper end face of the mold frame 58 and the lower surface of the adjacent hot pressing top plate 510 or hot pressing plate 57. After hot pressing, the dry material directly stays in the first filter cloth of the mold frame 58, which is conducive to separate demolding and filter cloth cleaning, and is easy to apply in industrial production.

[0045] Specifically, there are two mold transfer devices 4, two lifting devices 12, two pushing devices 11, and two dry material conveying devices 9. The two mold transfer devices 4 are respectively located on the left and right sides of the hot pressing dehydration device 5. Each pushing device 11 is located on the front or rear side of one mold transfer device 4. Each dry material conveying device 9 is located on the side of one mold transfer device 4 away from the pushing device 11. In this embodiment, the dry material conveying device 9 is a dry material conveyor.

[0046] In this embodiment, a separate operation structure is designed for the hot-press dehydration device 5 and the mold frame 58. At the same time, two mold transfer devices 4, lifting devices 12, and pushing devices 11 are each set up. When the mold frame 58 containing wet material is transported on one mold transfer device 4 and undergoes hot-press dehydration in the hot-press dehydration device 5, the mold frame 58 of the other mold transfer device 4 can perform feeding and demolding. This can realize the synchronous operation of feeding, demolding, and hot-press dehydration. The mold frames 58 containing wet material on the two mold transfer devices 4 circulate into the hot-press dehydration device 5 for hot-press dehydration, which can greatly improve the effective dehydration time of the hot-press dehydration device 5, thereby improving production capacity and helping to meet the needs of large-scale industrial production.

[0047] The feeding device includes a main feeder 1, a spreading feeder 2, and two quantitative feeders 3. The main feeder 1 is located above the spreading feeder 2, and its outlet is connected to the inlet of the spreading feeder 2. The spreading feeder 2 is located above the two quantitative feeders 3, and its two outlets are connected to the inlets of the two quantitative feeders 3 respectively. The outlet of each quantitative feeder 3 is located above a mold conveying device 4 near the hot-press dehydration device 5. Thus, the main feeder 1, the spreading feeder 2, and the two quantitative feeders 3 work together to achieve quantitative feeding of the mold frames 58 on the two mold conveying devices 4. In this embodiment, the spreading feeder 2 is a reciprocating belt conveyor with material discharge at both ends.

[0048] The elastic support mechanism includes a support frame 512 and multiple elastic connecting components. Multiple first mounting holes 579 are arranged sequentially from front to back on both sides of the hot press plate 57. The elastic connecting components include guide rods 514 and springs 515 sleeved on the guide rods 514. Multiple second mounting holes are provided on the support frame 512. The lower end of each guide rod 514 is fixed in a first mounting hole 579, and the upper end of each guide rod 514 passes through a second mounting hole. The support frame 512 can be sleeved on the boss 59.

[0049] In this embodiment, the height of the boss 59 is the same as the height of the mold frame 58. The length and width of the boss 59 are slightly smaller than the length and width of the inner cavity of the mold frame 58, which facilitates the insertion of the boss 59 into the mold frame 58 and allows it to move freely vertically within the mold frame 58. The inner and outer ring structural dimensions of the support frame 512 are the same as those of the inner and outer ring structural dimensions of the mold frame 58, and the inner ring dimension is slightly larger than the outer dimensions of the boss 59, which facilitates the free up and down movement of the mold frame 58 along the boss 59.

[0050] The first limiting mechanism includes two first limiting components, which are respectively disposed on the front and rear sides of the upper part of the support frame 512. The two first limiting components are used to limit the front and rear sides of the mold frame 58. In this embodiment, the first limiting component is a limiting plate 513.

[0051] The lower part of the hot press plate 510 and the other hot press plates 57 (excluding the bottommost hot press plate 57) are all provided with a second limiting mechanism. The second limiting mechanism is used to limit the left and right sides of the mold frame 58 when the hot press plate 510 and the other hot press plates 57 (excluding the bottommost hot press plate 57) are pressed down.

[0052] The second limiting mechanism includes two second limiting components. A second limiting component is provided on the lower left and right sides of the hot press top plate 510 and the other hot press plates 57 except for the lowest hot press plate 57. The second limiting component includes two limiting blocks 5712.

[0053] In this embodiment, the precise positioning of the mold frame is achieved through the cooperation of the first limiting mechanism and the second limiting mechanism.

[0054] The connecting mechanism includes multiple connecting components, each including a connecting screw 517 and two nuts 518, which are respectively installed at both ends of the connecting screw 517. The front and rear sides of the hot press plate 57 are provided with multiple lower through holes 578 arranged sequentially from left to right for the lower end of the connecting screw 517 to pass through. The front and rear sides of the hot press top plate 510 are provided with multiple first upper through holes arranged sequentially from left to right for the upper end of the connecting screw 517 to pass through. Except for the lowermost hot press plate 57, the front and rear sides of the other hot press plates 57 are provided with multiple second upper through holes 5713 arranged sequentially from left to right for the upper end of the connecting screw 517 to pass through. The upper and lower ends of the connecting screw 517 in the connecting mechanism for connecting the hot press top plate 510 and the hot press plate 57 pass through the first upper through holes and lower through holes 578 respectively and are fitted with nuts 518, thereby allowing the hot press top plate 510 and the adjacent hot press plate 57 to slide relative to the connecting screw 517. The upper and lower ends of the connecting screw 517 in the connecting mechanism for connecting two adjacent hot press plates 57 pass through the second upper through hole 5713 and the lower through hole 578 respectively and are fitted with nuts 518, so that the two adjacent hot press plates 57 can slide relative to the connecting screw 517.

[0055] Each hot press plate 57 has a first guide mechanism on its upper part. The first guide mechanism includes multiple first guide posts 520. Multiple first guide posts 520 are arranged sequentially from left to right on both the front and rear sides of the upper part of the hot press plate 57. Specifically, multiple third mounting holes 5710 are arranged sequentially from left to right on both the front and rear sides of the upper part of the hot press plate 57. The lower end of each first guide post 520 is fixed in a third mounting hole 5710. The hot press top plate 510 has multiple first guide holes for the first guide posts 520 to pass through. All hot press plates 57 except the bottommost hot press plate 57 have multiple second guide holes 5714 for the first guide posts 520 to pass through. The first guide mechanism guides the hot press top plate 510 and all other hot press plates 57 except the bottommost hot press plate 57.

[0056] The mold transfer mechanism includes a first linear telescopic drive component, a horizontal push rod 47, an electromagnet 48, and two L-shaped guide plates 44. The two L-shaped guide plates 44 are symmetrically arranged on the front and rear sides of the frame. Each L-shaped guide plate 44 includes a horizontal plate and a vertical plate located on the upper part of the outer side of the horizontal plate. The two L-shaped guide plates 44 are used to support and guide the mold frame 58, which is placed on the two horizontal plates. The two vertical plates are used to guide the front and rear sides of the mold frame 58. The first linear telescopic drive component is mounted on the frame and located on the side away from the hot-press dehydration device 5. A horizontal push rod 47 is provided on the side of the first linear telescopic drive component closest to the hot-press dehydration device 5. The length direction of the horizontal push rod 47 is perpendicular to the length direction of the first linear telescopic drive component. An electromagnet 48 is provided on the side of the horizontal push rod 47 closest to the hot-press dehydration device 5. When the electromagnet 48 is energized, it can attract the mold frame 58.

[0057] When it is necessary to move the mold frame 58, the electromagnet 48 is energized, causing the electromagnet 48 to attract the mold frame 58; when it is necessary to put the mold frame 58 in a free state, the electromagnet 48 is de-energized.

[0058] When the mold frame 58 is placed on the two L-shaped guide plates 44, the height of the lower surface of the mold frame 58 is equal to the height of the upper surface of the support frame 512 of each layer in the corresponding hot press dewatering device 5. This allows the first linear telescopic drive component to push the mold frame 58 smoothly into the upper part of the support frame 512. This facilitates the first linear telescopic drive component to push the mold frame 58 to perform horizontal reciprocating motion on the same horizontal plane corresponding to the hot press dewatering device 5 and the mold transmission mechanism, thus completing the entire process of feeding wet materials, hot press dewatering, demolding dry materials, and cleaning the first filter cloth in the mold frame 58.

[0059] In this specific embodiment, the first linear telescopic drive component is a first cylinder 45, and the first piston rod 46 of the first cylinder 45 is connected to the middle part of the horizontal push rod 47.

[0060] The mold transfer device 4 also includes a receiving hopper 49 located on the top of the frame. The receiving hopper 49 is located above the uppermost mold transfer mechanism and on the side close to the hot pressing dewatering device 5. The receiving hoppers 49 on the two mold transfer devices 4 are respectively located below the discharge ports of the two quantitative feeders 3.

[0061] The length between the two L-shaped guide plates 44 of each mold transfer mechanism along the left and right direction can accommodate two mold frames 58, that is, two mold positions are formed between the two L-shaped guide plates 44 of each transfer mechanism. The mold position closer to the hot pressing dehydration device 5 is the feeding position, and the mold position above the lifting device 12 is the lifting position.

[0062] The mold transfer device 4 also includes multiple guide plates 410. The multiple guide plates 410 are arranged sequentially from top to bottom on the side of the frame away from the pusher device 11. Each guide plate 410 corresponds to a mold transfer mechanism. Each guide plate 410 is used to guide the dry material that is pushed out in a mold frame 58, so that it falls smoothly into the dry material conveying device 9.

[0063] The lifting device 12 includes a base plate 121, a second linear telescopic drive component, a second guide mechanism, and multiple lifting mechanisms. The base plate 121 is located at the lower part of the frame. The second guide mechanism includes two guide components respectively located on the outer sides of two L-shaped guide plates 44. The guide components include multiple second guide posts 122 arranged sequentially from left to right. The lower ends of each second guide post 122 are slidably mounted on the base plate 121. Each lifting mechanism is located below a mold transfer mechanism. The lifting mechanism includes a support plate 125 and a lifting block 126 located in the middle of the support plate 125. The support plate 125 is fixedly sleeved on the multiple second guide posts 122. The second linear telescopic drive component is vertically arranged on the upper part of the base plate 121 and is connected to the lowermost support plate 125.

[0064] When the second linear telescopic drive component extends, it can lift the first filter cloth and dry material in each layer of mold frame 58, facilitating the demolding of the dry material. When it retracts, it creates space for the horizontal movement of the mold transmission mechanism, avoiding obstruction of the horizontal movement of the mold frame 58. Specifically, when the second linear telescopic drive component moves the lowest support plate 125 and its upper lifting block 126 upward, it can simultaneously move other support plates 125 and their upper lifting blocks 126 upward together, thereby simultaneously lifting the dry material in multiple mold frames 58 arranged sequentially from top to bottom. When the second linear telescopic drive component moves the lowest support plate 125 and its upper lifting block 126 downward, it can simultaneously move other support plates 125 and their upper lifting blocks 126 downward together, ensuring that the upper surface of all lifting blocks 126 is flush with the upper surface of the corresponding horizontal plate in the same layer, without obstructing the horizontal movement of the mold frame 58.

[0065] In this specific embodiment, the second linear telescopic drive component is a second cylinder 123, and the second piston rod 124 of the second cylinder 123 is connected to the lowest support plate 125.

[0066] Specifically, the frame includes a vertical support 41, a lower horizontal support 42, and multiple upper horizontal supports 43. The lower horizontal support 42 and the multiple upper horizontal supports 43 are arranged sequentially from bottom to top on the vertical support 41, and the base plate 121 is arranged on the lower horizontal support 42. Each mold transfer mechanism is arranged on one of the upper horizontal supports 43. Specifically, two L-shaped guide plates 44 are symmetrically arranged on the front and rear sides of the upper horizontal support, and the first linear telescopic drive component is arranged at the end of the upper horizontal support 43 away from the hot-press dehydration device 5.

[0067] In this specific embodiment, the vertical support 41 includes four columns arranged in a rectangular shape. The lower horizontal support 42 is fixed to the inner side of the four columns, and the upper horizontal support 43 is fixed to the inner side of the four columns. The lower horizontal support 42 includes four lower crossbeams connected end to end, and the upper horizontal support 43 includes four upper crossbeams connected end to end.

[0068] like Figure 10 and Figure 11 As shown, the pusher device 11 includes a support frame 113, an air supply mechanism, and multiple pusher blowing mechanisms arranged sequentially from top to bottom on the support frame 113. Each pusher blowing mechanism includes a pusher driving component, a horizontal guide support assembly, a pusher frame, a pusher plate 118, an air inlet pipe 119, and a jet pipe 1110. The pusher driving component is located on the support frame 113, the horizontal guide support assembly is located on one side of the support frame 113, the pusher frame is slidably mounted on the upper part of the horizontal guide support assembly, one end of the pusher frame is connected to the pusher driving component, and the other end of the pusher frame is provided with a pusher plate 118. The jet pipe 1110 is fixed on the pusher frame, and the length direction of the jet pipe 1110 is perpendicular to the moving direction of the pusher frame. Multiple lower nozzles 1111 are arranged sequentially along the length direction of the lower part of the jet pipe 1110. The jet pipe 1110 is connected to the air supply mechanism through the air inlet pipe 119. Each mold transfer mechanism can extend into the upper part of a pusher frame.

[0069] The pusher frame in this embodiment includes a horizontal main rod 116 and two horizontal side rods 117 respectively disposed on both sides of the horizontal main rod 116. The horizontal side rods 117 are perpendicular to the horizontal main rod 116, and both horizontal side rods 117 are slidably mounted on a horizontal guide support assembly. A pusher plate 118 is connected to the end of the two horizontal side rods 117 away from the horizontal main rod 116, and the length direction of the pusher plate 118 is consistent with the length direction of the horizontal main rod 116. A pusher drive component is connected to the side of the horizontal main rod 116 away from the pusher plate 118. One end of the air inlet pipe 119 is closed and connected to the horizontal main rod 116, and the other end of the air inlet pipe 119 is connected to the jet pipe 1110. Both ends of the jet pipe 1110 are closed and connected to the two horizontal side rods 117 respectively.

[0070] Specifically, the horizontal guide support assembly includes two parallel horizontal guide rails 115, and each horizontal side rod 117 is slidably mounted on one of the horizontal guide rails 115.

[0071] In this embodiment, the pushing drive component is a pushing cylinder 114, and the air supply mechanism includes an air compressor 111 and a main air distribution pipe 112. The main air distribution pipe 112 is connected to the air compressor 111 through a pipe, and the main air distribution pipe 112 is connected to each air inlet pipe 119 and each pushing cylinder 114 through a pipe.

[0072] like Figure 8 and Figure 9 As shown, the upper part of the mold frame 58 is provided with an annular groove 581, and multiple first threaded holes 583 are provided in the annular groove 581. An annular filter cloth pressing strip 582 is provided on the upper part of the annular groove 581. The first threaded holes 583 are used to install first bolts, which are used to fix the annular filter cloth pressing strip 582 and the first filter cloth to the mold frame 58. The upper surface of the annular filter cloth pressing strip 582 is not higher than the upper surface of the mold frame 58 to prevent slurry leakage.

[0073] The lower periphery of the hot-pressing top plate 510 is provided with multiple second threaded holes for installing second bolts, which are used to fix the second filter cloth 516 to the lower part of the hot-pressing top plate 510. The lower periphery of the other hot-pressing plates 57 (excluding the lowest hot-pressing plate 57) is provided with multiple third threaded holes 5711 for installing third bolts, which are used to fix the second filter cloth 516 to the lower part of the hot-pressing plate 57.

[0074] The hot-pressing top plate 510 is provided with a plurality of first heat medium channels arranged sequentially. In any two adjacent first heat medium channels, the outlet of the first heat medium channel and the inlet of the second heat medium channel are connected by a first connecting pipe to form a first reciprocating meandering channel. The inlet of the first reciprocating meandering channel is connected to a first heat medium inlet pipe, and the outlet of the first reciprocating meandering channel is connected to a first heat medium outlet pipe. In this embodiment, the first heat medium inlet pipe and the first heat medium outlet pipe are respectively arranged on the front and rear sides of the hot-pressing top plate 510. Each first heat medium channel extends along the left and right direction of the hot-pressing top plate 510, and the plurality of first heat medium channels are arranged sequentially from front to back in the hot-pressing top plate 510.

[0075] The hot press plate 57 is provided with a plurality of second heat medium channels 572 arranged sequentially. The outlet of the first second heat medium channel 572 and the inlet of the second second heat medium channel 572 in any two adjacent second heat medium channels 572 are connected by a second connecting pipe 573 to form a second reciprocating meandering channel. The inlet of the second reciprocating meandering channel is connected to a second heat medium inlet pipe 571, and the outlet of the second reciprocating meandering channel is connected to a second heat medium outlet pipe 574. In this embodiment, the second heat medium inlet pipe 571 and the second heat medium outlet pipe 574 are respectively arranged on the front and rear sides of the hot press plate 57. Each second heat medium channel 572 extends along the left and right direction of the hot press plate 57, and the plurality of second heat medium channels 572 are arranged sequentially from front to back in the hot press plate 57.

[0076] The heating device 10 is an electric heating device or a heat medium heating device. When an electric heating device is used, the electric heating device includes an electrical control cabinet and multiple electric heating rods connected to the electrical control cabinet. An electric heating rod is inserted into each of the first heat medium inlet pipe and the second heat medium inlet pipe 571. The electrical control cabinet is connected to a power source and is connected to the electric heating rods through cables. The multiple electric heating rods heat the hot press plate 510 and the hot press plate 57 respectively.

[0077] When a heat medium heating device is used, both the first heat medium inlet pipe and the second heat medium inlet pipe 571 are connected to the heat medium outlet port of the heat medium heating device, and both the first heat medium outlet pipe and the second heat medium outlet pipe 574 are connected to the return port of the heat medium heating device. In this embodiment, the heat medium heating device is a steam heating device or a thermal oil heating device.

[0078] The hot steam heating device includes a steam generator, a regulating valve, a steam inlet connection pipe, a steam outlet connection pipe, and a steam trap. The connection method is as follows: the steam outlet of the steam generator is fixedly connected to the steam inlet of the regulating valve; the steam outlet of the regulating valve is fixedly connected to the first hot medium inlet pipe and the second hot medium inlet pipe 571 respectively through the steam inlet connection pipe; the first hot medium outlet pipe and the second hot medium outlet pipe 574 are fixedly connected to the steam inlet of the steam trap through the steam outlet connection pipe; and the water outlet of the steam trap is fixedly connected to the water inlet of the steam generator through a pipe, thereby realizing energy saving and water resource recycling.

[0079] The heat transfer oil heating device includes an electric heater, an oil outlet valve, an oil inlet connection pipe, an oil outlet connection pipe, and a return oil valve. The connection method is as follows: the oil outlet of the electric heater is fixedly connected to the oil inlet of the oil outlet valve. The oil outlet of the oil outlet valve is fixedly connected to the first heat medium inlet pipe and the second heat medium inlet pipe 571 respectively through the oil inlet connection pipe. The first heat medium inlet pipe and the second heat medium inlet pipe 571 are fixedly connected to the oil inlet of the return oil valve through the oil outlet connection pipe. The oil outlet of the return oil valve is fixedly connected to the oil inlet of the electric heater through a pipe.

[0080] This embodiment also includes a buffer pool 8, and the end of the drainage device away from the horizontal drain pipe 577 is connected to the buffer pool 8. The drainage device includes a drainage manifold 7 and multiple drainage branch pipes 6. Each horizontal drain pipe 577 is connected to the drainage manifold 7 through a drainage branch pipe 6. The other end of the drainage manifold 7 extends into the buffer pool 8.

[0081] In this embodiment, the hot press plate 57 is provided with a drainage channel for connecting the drainage chamber 575 and the horizontal drainage pipe 577. Specifically, there are two horizontal drainage pipes 577, which are respectively located on the front and rear sides of the hot press plate 57, and both horizontal drainage pipes 577 are connected to the drainage channel.

[0082] In this embodiment, the boss 59 is provided with four non-communicating drainage chambers 575, which means that a cross-shaped support structure is left in the middle of the boss 59, thereby enabling the boss 59 to drain water while maintaining the stability of the support. Each drainage chamber 575 is provided with multiple water leakage holes 576 on its upper part, and each drainage chamber 575 is connected to the horizontal drainage pipe 577 through a drainage pipe.

[0083] In this specific embodiment, the hot press top plate 510 and the hot press plate 57 are both metal plates, the mold frame 58 is a U-shaped metal frame, and the first hot medium inlet pipe, the second hot medium inlet pipe 571, the first hot medium outlet pipe and the second hot medium outlet pipe 574 are all metal pipes.

[0084] Specifically, the support frame 113 includes an upper plate 519 and a third guide mechanism. The third guide mechanism includes multiple third guide posts 56, with the upper and lower ends of each third guide post 56 connected to the upper plate 519 and the base 54, respectively. The extrusion drive component is mounted on the upper plate 519. Movable end plates 55 are mounted on the multiple third guide posts 56. The lower end of the extrusion drive component is connected to the upper part of the movable end plate 55, and the lower part of the movable end plate 55 is connected to the hot press top plate 510 via a connecting platform 511.

[0085] In this specific embodiment, four third guide posts 56 are provided, and the four third guide posts 56 are respectively provided on the four corners of the base 54.

[0086] In this specific embodiment, the extrusion drive component is a hydraulic cylinder 52, and the hot press dehydration device 5 also includes a hydraulic station 51. The hydraulic station 51 is connected to the hydraulic cylinder 52 through an oil pipe. The hydraulic cylinder 52 is vertically fixed at the center position of the upper plate 519, and the lower end of the extrusion piston rod 53 of the hydraulic cylinder 52 is fixedly connected to the upper part of the movable end plate 55.

[0087] This embodiment also provides an operation method for a hot pressing dehydration system for wet materials, including the following steps:

[0088] Step 1: Place a mold frame 58 on each mold transfer mechanism. Transfer the mold frame 58 to the side near the hot press dehydration device 5 through the mold transfer mechanism. Feed wet material into each mold frame 58 through the feeding device to complete the feeding operation. Turn on each mold transfer mechanism to transfer each mold frame 58 containing wet material to the top of an elastic support mechanism. Each first limiting mechanism limits the front and rear sides of a mold frame 58 to complete the mold entry action. Start the extrusion drive component to drive the hot press top plate 510 to move downward. As the hot press top plate 510 and other hot press plates 57 except the bottom hot press plate 57 move downward, the second filter cloth 516 under the hot press top plate 510 and the first filter cloth on the adjacent mold frame 58 come into contact and press together to form a filter cloth cavity. The second filter cloth 516 under the hot press plate 57 and the first filter cloth on the adjacent mold frame 58 come into contact and press together to form a filter cloth cavity, completing the mold closing operation. During this process, the second limiting mechanism limits the left and right sides of the mold frame when the hot pressing top plate and other hot pressing plates (except for the bottom hot pressing plate) are pressed down, thereby achieving precise positioning of the mold frame.

[0089] Specifically, firstly, the bottommost linear telescopic drive component is activated to transfer the bottommost mold frame 58 from the lifting position away from the hot-press dewatering device 5 to the feeding position adjacent to the hot-press dewatering device 5. Then, the upper main feeder 1, the material distributor 2, and the quantitative feeder 3 are activated respectively to feed the wet material quantitatively into the bottommost mold frame 58. The mold frames 58 are then transferred from bottom to top to the feeding positions in sequence, and the quantitative feeding of each layer of mold frames 58 is completed in sequence, finally completing the feeding action.

[0090] Then, the mold frame 58 after receiving the material is horizontally transferred to the corresponding support frame 512 in the hot press dehydration device 5 by the first linear telescopic drive component, thus completing the mold insertion action.

[0091] Start the hydraulic station 51, the oil cylinder 52 pushes the extrusion piston rod 53 downward, the extrusion piston rod 53 drives the movable end plate 55 downward, the movable end plate 55 drives the hot pressing top plate 510 downward along the first guide column 520, the hot pressing top plate 510 drives the elastic support mechanism downward, the elastic support mechanism drives the next hot pressing plate 57 downward, until the second filter cloth 516 of the hot pressing plate 57 contacts the second filter cloth 516 on the upper surface of the bottom mold frame 58, forming a closed filter cloth cavity; as the extrusion piston rod 53 continues to move downward, from bottom to top, the second filter cloth 516 on the lower surface of the hot pressing top plate 510 and the hot pressing plate 57 contact the first filter cloth on the upper surface of the mold frame 58 in sequence, forming a filter cloth cavity, and completing the mold closing action.

[0092] Step 2: Hot pressing dehydration is performed. The heating device 10 provides heat to the hot pressing top plate 510 and the hot pressing plate 57, increasing the downward pressure applied by the extrusion drive component. Specifically, the pressure of the hydraulic station 51 continues to increase, and the oil cylinder 52 continues to push the extrusion piston rod 53 downward. The lower surfaces of the hot pressing top plate 510 and the hot pressing plate 57 both press against the adjacent mold frame 58. The mold frame 58 presses against the elastic support mechanism below it, causing the mold frame 58 and the boss 59 below it to move relative to each other, generating a squeezing effect on the wet material. After the wet material is compressed, the water escapes from the wet material, passes through the first filter cloth in the mold frame 58 and the water leakage hole 576 on the boss 59 and enters the drainage chamber 575, and then enters the drainage device through the horizontal drainage pipe 577.

[0093] Specifically, after the heating device 10 is turned on, the heat medium enters the hot-pressing top plate 510 and the hot-pressing plate 57 from the first heat medium inlet pipe and the second heat medium inlet pipe 571, respectively. On the one hand, heat is transferred from the lower surface of the hot-pressing top plate 510 or the hot-pressing plate 57 above the filter cloth cavity to the second filter cloth 516, and the second filter cloth 516 transfers the heat from top to bottom to the wet material. On the other hand, heat is transferred from the upper surface of the protrusion 59 below the filter cloth cavity to the first filter cloth, and the first filter cloth transfers the heat from bottom to top to the wet material. The wet material expands in volume due to the vaporization of the hot water, generating internal pressure, which accelerates the squeezing out of the water in the material. After a period of time, the hot-pressing dehydration process is completed.

[0094] Step 3: Open the mold. The extrusion drive component moves the hot press plate 510 upward, so that the hot press plate 510 and all the hot press plates 57 except the bottom hot press plate 57 move upward. After the mold frame 58 is released from pressure, the elastic support mechanism is also released from pressure. The elastic support mechanism automatically moves upward and pushes the mold frame 58 to the top of the boss 59.

[0095] Specifically, the extrusion piston rod 53 of the hydraulic cylinder 52 retracts and drives the movable end plate 55. The movable end plate 55 drives the hot pressing top plate 510 to move upward along the first guide post 520 and disengage from the adjacent mold frame 58. After the mold frame 58 is released from pressure, the support frame 512 is also released from pressure. Under the action of the spring 515, the support frame 512 automatically moves upward and pushes the mold frame 58 to the upper part of the boss 59. The extrusion piston rod 53 of the hydraulic cylinder 52 continues to move upward, and the connecting screw 517 on the hot pressing top plate 510 is pulled up vertically. The connecting screw 517 drives the next layer of hot pressing plate 57 connected to it to move upward. In this way, the mold opening action is completed layer by layer from top to bottom, and finally the mold opening of all dry materials is realized.

[0096] Step 4: After the mold opening is completed, activate the mold transfer mechanism to move each mold frame 58, which has completed hot pressing and dehydration, horizontally out of the hot pressing and dehydration device 5 and above the lifting device 12.

[0097] At the same time, the mold transfer mechanisms on the mold transfer device 4 on the other side are activated, and the mold frame 58, which has been loaded with wet material, is pushed horizontally into the hot press dewatering device 5 from the other side, thus starting the second round of dewatering operation of the hot press dewatering device 5.

[0098] Step 5: The lifting device 12 extends upward to push the dry material obtained by hot pressing and dehydration in each mold frame 58 upward. The pushing device 11 pushes the dry material, so that the dry material falls onto the dry material conveying device 9.

[0099] During the process of pushing dry material by the pushing device 11, the pushing piston rod of the pushing cylinder 114 drives the pushing frame and its fixed pushing plate 118, air inlet pipe 119, air jet pipe 1110 and lower nozzle 1111 to move horizontally forward on the horizontal guide rail 115. When the pushing plate 118 passes horizontally over the dry material on the upper surface of the mold frame 58, it pushes the dry material to peel it off from the first filter cloth. At the same time, the lower nozzle 1111, which follows the pushing plate 118, sprays compressed air to sweep away the dry material remaining on the surface of the first filter cloth, realizing the automatic cleaning of the residual material on the surface of the first filter cloth. The peeled dry material falls onto the dry material conveyor and is promptly transported away, completing the pushing and filter cloth cleaning process. Subsequently, the pushing frame on the pushing device 11 retracts horizontally and leaves the mold frame 58 to wait for the next action.

[0100] Step 6: The lifting device 12 retracts downward so as not to obstruct the horizontal movement of the mold frame 58. The mold transfer mechanism is activated to push the mold frames 58 after demolding to the side close to the hot press dehydration device 5. This pushes the mold frames 58 after demolding to the feeding station. Then the feeding work in step 1 is carried out. This cycle is repeated to achieve continuous production.

[0101] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A hot pressing dehydration system for wet materials, characterized in that, The device includes a feeding device, a mold transfer device, a lifting device, a hot-press dehydration device, a drainage device, a heating device, a pushing device, and a dry material conveying device. The hot-press dehydration device includes a base, a mounting frame, an extrusion drive component, a hot-press top plate, multiple hot-press plates, multiple connecting mechanisms, multiple mold frames, multiple elastic support mechanisms, and multiple first limiting mechanisms. The mounting frame is located on the upper part of the base, and the extrusion drive component is located on the top of the mounting frame. The lower end of the extrusion drive component is connected to the hot-press top plate. The hot-press top plate and multiple hot-press plates are arranged sequentially from top to bottom, with the lowest hot-press plate fixed to the base. The hot-press top plate is connected to the adjacent hot-press plate via one of the connecting mechanisms. The hot press plates are connected, with any two adjacent hot press plates connected by a connecting mechanism. The connecting mechanism and the connected hot press plate can move vertically relative to each other. Each hot press plate has a boss at its upper part and an elastic support mechanism on its upper part. Each elastic support mechanism is sleeved on the outside of a boss, and each elastic support mechanism has a first limiting mechanism at its upper part. Each elastic support mechanism supports a mold frame, and each first limiting mechanism limits the front and rear sides of the mold frame. The mold frames are limited in size, with a first filter cloth provided on the upper part of each mold frame, and each boss extending into one of the mold frames; the hot pressing top plate and the other hot pressing plates (except the lowest one) are each provided with a second filter cloth on the lower part, and each second filter cloth and the first filter cloth on the adjacent mold frame can form a filter cloth cavity when in contact; a drainage cavity is provided inside the boss, and a drain hole communicating with the drainage cavity is provided on the top of the boss; a horizontal drain pipe communicating with the drainage cavity is provided on the hot pressing plate, and the horizontal drain pipe is connected to the drainage device; the heating device is used to provide heat to the hot pressing top plate and the hot pressing plate; the mold transfer device includes a frame and multiple... A mold transfer mechanism is arranged sequentially from top to bottom on the frame, which is located on one side of the hot press dehydration device. Each mold transfer mechanism corresponds to a hot press plate. The feeding device is used to feed wet material into the mold frame. Each mold transfer mechanism is used to drive one of the mold frames to move left and right, thereby moving each mold frame to the upper part of an elastic support mechanism. A lifting device is provided on the lower part of the side of the frame away from the hot press dehydration device. The lifting device is used to push the dry material obtained by hot press dehydration in each mold frame upward. The pushing device is used to push the dry material, thereby causing the dry material to fall onto the dry material conveying device.

2. The wet material hot pressing dehydration system according to claim 1, characterized in that, The mold conveying device, the lifting device, the pushing device, and the dry material conveying device are all configured in pairs. The two mold conveying devices are respectively located on the left and right sides of the hot-press dehydration device. Each pushing device is located in front of or behind one of the mold conveying devices. Each dry material conveying device is located on the side of one of the mold conveying devices away from the pushing device. The feeding device includes a main feeder, a spreading machine, and two quantitative feeders. The main feeder is located above the spreading machine, and the outlet of the main feeder is connected to the inlet of the spreading machine. The spreading machine is located above the two quantitative feeders, and the two outlets of the spreading machine are respectively connected to the inlets of the two quantitative feeders. The outlet of each quantitative feeder is located above the side of one of the mold conveying devices that is closer to the hot-press dehydration device.

3. The wet material hot pressing dehydration system according to claim 1, characterized in that, The elastic support mechanism includes a support frame and multiple elastic connecting components. Multiple first mounting holes are arranged sequentially from front to back on both sides of the hot press plate. Each elastic connecting component includes a guide rod and a spring sleeved on the guide rod. Multiple second mounting holes are provided on the support frame. The lower end of each guide rod is fixed in one of the first mounting holes, and the upper end of each guide rod passes through one of the second mounting holes. The support frame can be sleeved on the boss. The first limiting mechanism includes two first limiting components, each of which is respectively disposed on the support frame. On the front and rear sides of the part, two first limiting components are used to limit the front and rear sides of the mold frame; the lower part of the hot pressing top plate and the other hot pressing plates except the bottommost hot pressing plate are all provided with second limiting mechanisms, which are used to limit the left and right sides of the mold frame when the hot pressing top plate and the other hot pressing plates except the bottommost hot pressing plate are pressed down; the second limiting mechanism includes two second limiting components, and one second limiting component is provided on the lower left and right sides of the hot pressing top plate and the other hot pressing plates except the bottommost hot pressing plate.

4. The wet material hot pressing dehydration system according to claim 1, characterized in that, The connecting mechanism includes multiple connecting components, each including a connecting screw and two nuts. The front and rear sides of the hot press plate are provided with multiple lower through holes arranged from left to right for the lower end of the connecting screw to pass through. The front and rear sides of the hot press top plate are provided with multiple first upper through holes arranged from left to right for the upper end of the connecting screw to pass through. Except for the lowest hot press plate, the front and rear sides of the other hot press plates are provided with multiple second upper through holes arranged from left to right for the upper end of the connecting screw to pass through. In the connecting mechanism connecting the hot press top plate and the hot press plate, the upper and lower ends of the connecting screw pass through the first upper through hole and the lower through hole respectively and are fitted with the nuts. In the connecting mechanism connecting two adjacent hot press plates, the upper and lower ends of the connecting screw pass through the second upper through hole and the lower through hole respectively and are fitted with the nuts.

5. The wet material hot pressing dehydration system according to claim 1, characterized in that, Each of the hot press plates is provided with a first guide mechanism on its upper part. The first guide mechanism includes multiple first guide posts. Multiple first guide posts are provided on the front and rear sides of the upper part of the hot press plate, arranged sequentially from left to right. Multiple first guide holes are provided on the hot press plate for the first guide posts to pass through. Except for the lowermost hot press plate, each of the other hot press plates is provided with a second guide hole for the first guide posts to pass through.

6. The wet material hot pressing dehydration system according to claim 1, characterized in that, The mold transfer mechanism includes a first linear telescopic drive component, a horizontal push rod, an electromagnet, and two L-shaped guide plates. The two L-shaped guide plates are symmetrically arranged on the front and rear sides of the frame. Each L-shaped guide plate includes a horizontal plate and a vertical plate located on the upper part of the outer side of the horizontal plate. The two L-shaped guide plates are used to support and guide the mold frame. The first linear telescopic drive component is mounted on the frame and located on the side away from the hot-press dehydration device. The horizontal push rod is located on the side of the first linear telescopic drive component closer to the hot-press dehydration device. The electromagnet is located on the side of the horizontal push rod closer to the hot-press dehydration device. When the electromagnet is energized, it can attract the mold frame.

7. The wet material hot pressing dehydration system according to claim 6, characterized in that, The lifting device includes a base plate, a second linear telescopic drive component, a second guide mechanism, and multiple lifting mechanisms. The base plate is disposed at the lower part of the frame. The second guide mechanism includes two guide components respectively disposed on the outer sides of two L-shaped guide plates. Each guide component includes multiple second guide posts arranged sequentially from left to right, and the lower end of each second guide post is slidably mounted on the base plate. Each lifting mechanism is located below one of the mold transfer mechanisms. Each lifting mechanism includes a support plate and a lifting block disposed in the middle of the support plate. The support plate is fixedly sleeved on the multiple second guide posts. The second linear telescopic drive component is vertically disposed on the upper part of the base plate and is connected to the lowermost support plate.

8. The wet material hot pressing dehydration system according to claim 1, characterized in that, The material pushing device includes a support frame, an air supply mechanism, and multiple material pushing and blowing mechanisms arranged sequentially from top to bottom on the support frame. Each material pushing and blowing mechanism includes a material pushing drive component, a horizontal guide support assembly, a material pushing frame, a material pushing plate, an air inlet pipe, and an air jet pipe. The material pushing drive component is disposed on the support frame, the horizontal guide support assembly is disposed on one side of the support frame, the material pushing frame is slidably mounted on the upper part of the horizontal guide support assembly, one end of the material pushing frame is connected to the material pushing drive component, the other end of the material pushing frame is provided with the material pushing plate, the air jet pipe is fixed on the material pushing frame, the length direction of the air jet pipe is perpendicular to the moving direction of the material pushing frame, multiple lower nozzles are arranged sequentially along the length direction of the lower part of the air jet pipe, the air jet pipe is connected to the air supply mechanism through the air inlet pipe, and one material pushing frame can be extended into the upper part of each mold transfer mechanism.

9. The wet material hot pressing dehydration system according to claim 1, characterized in that, The hot-pressing top plate is provided with multiple sequentially arranged first heat medium channels. The outlet of one first heat medium channel and the inlet of the next first heat medium channel in any two adjacent channels are connected by a first connecting pipe to form a first reciprocating meandering channel. The inlet of the first reciprocating meandering channel is connected to a first heat medium inlet pipe, and the outlet of the first reciprocating meandering channel is connected to a first heat medium outlet pipe. The hot-pressing plate is also provided with multiple sequentially arranged second heat medium channels. The outlet of one second heat medium channel and the inlet of the next second heat medium channel in any two adjacent channels are connected by a second connecting pipe. The system is configured to form a second reciprocating circuit, the inlet of which is connected to a second heat medium inlet pipe, and the outlet of which is connected to a second heat medium outlet pipe. The heating device is an electric heating device or a heat medium heating device. The electric heating device includes an electrical control cabinet and multiple electric heating rods connected to the electrical control cabinet. One of the electric heating rods is inserted into both the first heat medium inlet pipe and the second heat medium inlet pipe. Both the first heat medium inlet pipe and the second heat medium inlet pipe are connected to the heat medium outlet of the heat medium heating device, and both the first heat medium outlet pipe and the second heat medium outlet pipe are connected to the return port of the heat medium heating device.

10. A method of operating a wet material hot pressing dewatering system as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Place a mold frame on each of the mold transfer mechanisms, and transfer the mold frame to the side near the hot press dehydration device through the mold transfer mechanism. Feed wet material into each of the mold frames through the feeding device to complete the feeding operation. Activate each of the mold transfer mechanisms to transfer each mold frame containing wet material to the top of one of the elastic support mechanisms. Each of the first limiting mechanisms limits the front and rear sides of one of the mold frames to complete the mold insertion operation. The extrusion drive component is activated to move the hot press plate downwards. As the hot press plate and the other hot press plates except the bottommost hot press plate move downwards, the second filter cloth below the hot press plate and the first filter cloth on the adjacent mold frame come into contact and press together to form the filter cloth cavity, thus completing the mold closing operation. Step 2: Hot pressing dehydration is performed. The heating device provides heat to the hot pressing top plate and the hot pressing plate, increasing the downward pressure applied by the extrusion drive component. The lower surfaces of the hot pressing top plate and the hot pressing plate both press against the adjacent mold frame. The mold frame presses against the elastic support mechanism below it, causing relative movement between the mold frame and the boss below it, which compresses the wet material. After being compressed, the water escapes from the wet material, passes through the first filter cloth in the mold frame and the water leakage hole on the boss, enters the drainage chamber, and then enters the drainage device through the horizontal drainage pipe. Step 3: Open the mold. The extrusion drive component drives the hot press top plate to move upward, so that the hot press top plate and all the hot press plates except the bottom hot press plate move upward. After the mold frame is released from pressure, the elastic support mechanism is also released from pressure. The elastic support mechanism automatically moves upward to push the mold frame out to the top of the boss. Step 4: After the mold opening is completed, activate each mold transfer mechanism to move each mold frame that has completed hot pressing and dehydration horizontally out of the hot pressing and dehydration device and above the lifting device. Step 5: The lifting device extends upward to push the dry material obtained by hot pressing and dehydration in each of the mold frames upward, and the pushing device pushes the dry material so that the dry material falls onto the dry material conveying device. Step 6: The lifting device retracts downwards so as not to obstruct the horizontal movement of the mold frame. The mold transfer mechanism is activated to push the demolded mold frames to the side close to the hot press dehydration device. Then the feeding operation in Step 1 is performed, and so on.

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