Wet material hot-pressing dehydration system and operation method thereof

Abstract

The invention discloses a wet material hot-pressing dehydration system and an operation method thereof, and relates to the technical field of wet material dehydration, the wet material hot-pressing dehydration system comprises a feeding device, a mold transmission device, a jacking device, a hot-pressing dehydration device, a drainage device, a heat supply device, a material pushing device and a dry material conveying device, the hot-pressing dehydration device comprises a base, a mounting frame, an extrusion driving part, a hot-pressing top plate, a plurality of hot-pressing plates, a plurality of connecting mechanisms, a plurality of mold frames, a plurality of elastic supporting mechanisms and a plurality of first limiting mechanisms, the feeding device is used for feeding wet materials into the mold frames, and each mold conveying mechanism is used for driving one mold frame to move left and right; a jacking device is arranged on the lower portion of the side, away from the hot-pressing dehydration device, of the rack, and the material pushing device is used for pushing the dry materials, so that the dry materials fall onto the dry material conveying device. According to the wet material hot-pressing dehydration system and the operation method thereof, deep dehydration of non-pumping wet materials can be achieved, and conditions are created for energy conservation and cost reduction of subsequent heat drying dehydration.

Description

Technical Field

[0001] The invention relates to the technical field of wet material dehydration, in particular to a wet material hot-pressing dehydration system and an operating method thereof. Background Art

[0002] After the slurry is dehydrated by a traditional dehydration device, a high-water-content wet material is generally obtained. The high-water-content wet material has a high water content, which brings great trouble to the subsequent thermal drying and dehydration. It also requires crushing and dispersion processing and longer drying time, higher drying energy consumption and larger equipment investment and land occupation. The subsequent thermal drying and dehydration requires that the moisture content of the material is as low as possible, which can save more energy consumption and cost. In addition, the high-water-content wet material cannot be transported by a pump, and there is no device in the prior art for further dehydrating the non-pumped high-water-content wet material. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a wet material hot pressure dehydration system and an operation method thereof, which can achieve deep dehydration of non-pumped wet materials and create conditions for energy saving and cost reduction of subsequent thermal drying and dehydration.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a wet material hot pressing dehydration system, comprising a feeding device, a mold transmission device, a lifting device, a hot pressing dehydration device, a drainage device, a heating device, a pushing device and a dry material conveying device, wherein the hot pressing dehydration device comprises a base, a mounting frame, an extrusion driving component, a hot pressing top plate, a plurality of hot pressing plates, a plurality of connecting mechanisms, a plurality of mold frames, a plurality of elastic supporting mechanisms and a plurality of first limiting mechanisms, wherein the mounting frame is arranged on the upper part of the base, the extrusion driving component is arranged on the top of the mounting frame, the lower end of the extrusion driving component is connected to the hot pressing top plate, the hot pressing top plate and the plurality of hot pressing plates are arranged in sequence from top to bottom, the lowest hot pressing plate is fixed on the base, and the hot pressing top plate is connected to the hot pressing top plate by a The connecting mechanism is connected to the adjacent hot pressing plates, and any two adjacent hot pressing plates are connected by one connecting mechanism. The connecting mechanism and the hot pressing top plate connected thereto can generate vertical relative movement, and the connecting mechanism and the hot pressing plates connected thereto can generate vertical relative movement. A boss is provided on the upper part of each hot pressing plate, and an elastic supporting mechanism is provided on each hot pressing plate. Each elastic supporting mechanism is sleeved on the outside of a boss, and a first limiting mechanism is provided on the upper part of each elastic supporting mechanism. Each elastic supporting mechanism is used to support a mold frame, and each first limiting mechanism is used to The front and rear sides of the frame are limited, the upper part of each mold frame is provided with a first filter cloth, and each of the bosses can extend into one of the mold frames; the lower parts of the hot pressing top plate and the other hot pressing plates except the lowest hot pressing plate are provided with a second filter cloth, and each of the second filter cloths can form a filter cloth cavity when in contact with the first filter cloth on the adjacent mold frame; a drainage cavity is provided inside the boss, a water leakage hole connected to the drainage cavity is provided on the top of the boss, a horizontal drainage pipe connected to the drainage cavity is provided on the hot pressing plate, and the horizontal drainage 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 transmission device includes A frame and a plurality of mold transmission mechanisms arranged on the frame from top to bottom in sequence, the frame is arranged on one side of the hot pressing and dehydration device, the mold transmission mechanism corresponds to the hot pressing plate one by one, the feeding device is used to feed the wet material into the mold frame, each of the mold transmission mechanisms is used to drive a mold frame to move left and right, so that each mold frame moves to the upper part of an elastic support mechanism, the lower part of the frame away from the hot pressing and dehydration device is provided with the lifting device, the lifting device is used to push the dry material obtained by hot pressing and dehydration in each mold frame upward, and the pushing device is used to push the dry material, so that the dry material falls onto the dry material conveying device.

[0006] Preferably, the mold transmission device, the lifting device, the pushing device and the dry material conveying device are each provided with two, the two mold transmission devices are respectively provided on the left and right sides of the hot pressing dehydration device, each pushing device is provided on the front side or the rear side of one of the mold transmission devices, and each dry material conveying device is provided on the side of one of the mold transmission devices away from the pushing device; the feeding device comprises a main feeder, a material distributor and two quantitative feeders, the main feeder is located above the material distributor, and the discharge port of the main feeder is connected to the feed port of the material distributor, the material distributor is located above the two quantitative feeders, and the two discharge ports of the material distributor are respectively connected to the feed ports of the two quantitative feeders, and the discharge ports of each of the quantitative feeders are located above one of the mold transmission devices close to the hot pressing dehydration device.

[0007] Preferably, the elastic support mechanism includes a support frame and a plurality of elastic connection components, a plurality of first mounting holes arranged in sequence from front to back are provided on the left and right sides of the hot pressing plate, the elastic connection component includes a guide rod and a spring sleeved on the guide rod, a plurality of second mounting holes are provided on the support frame, the lower end of each guide rod is fixed in a first mounting hole, the upper end of each guide rod passes through a second mounting hole, and the support frame can be sleeved on the boss; the first limiting mechanism includes two first limiting components, and the two first limiting components are respectively arranged on the support On the front and rear sides of the upper part of the frame, the two first limiting components are used to limit the front and rear sides of the mold frame; the lower parts of the hot pressing top plate and the other hot pressing plates except the lowest hot pressing plate are provided with a second limiting mechanism, and the second limiting mechanism is 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 lowest hot pressing plate are pressed down; the second limiting mechanism includes two second limiting components, and the left and right sides of the lower parts of the hot pressing top plate and the other hot pressing plates except the lowest hot pressing plate are provided with a second limiting component.

[0008] Preferably, the connecting mechanism includes multiple connecting components, the connecting components include a connecting screw and two nuts, the front and rear sides of the hot pressing plate are provided with multiple lower through holes arranged in sequence from left to right for the lower ends of the connecting screws to pass through, the front and rear sides of the hot pressing top plate are provided with multiple first upper through holes arranged in sequence from left to right for the upper ends of the connecting screws to pass through, and the front and rear sides of the other hot pressing plates except the bottom hot pressing plate are provided with multiple second upper through holes arranged in sequence from left to right for the upper ends of the connecting screws to pass through; the upper and lower ends of the connecting screw in the connecting mechanism for connecting the hot pressing top plate and the hot pressing plate respectively pass through the first upper through hole and the lower through hole and are installed with the nuts, and the upper and lower ends of the connecting screw in the connecting mechanism for connecting two adjacent hot pressing plates respectively pass through the second upper through hole and the lower through hole and are installed with the nuts.

[0009] Preferably, a first guide mechanism is provided on the upper part of each of the hot pressing plates, the first guide mechanism includes a plurality of first guide columns, a plurality of first guide columns arranged in sequence from left to right are provided on the front and rear sides of the upper part of the hot pressing plate, a plurality of first guide holes for the first guide columns to pass through are provided on the hot pressing top plate, and a second guide hole for the first guide columns to pass through is provided on the other hot pressing plates except the lowest hot pressing plate.

[0010] Preferably, the mold transmission 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, the L-shaped guide plate includes a transverse plate and a vertical plate arranged on the upper part of the outer side of the transverse plate, the two L-shaped guide plates are used to support and guide the mold frame, the first linear telescopic drive component is arranged on the frame and is located on the side away from the hot pressing and dehydration device, the first linear telescopic drive component is provided with the horizontal push rod on the side close to the hot pressing and dehydration device, the horizontal push rod is provided with the electromagnet on the side close to the hot pressing and dehydration device, and the electromagnet can adsorb the mold frame when energized.

[0011] Preferably, the lifting device includes a base plate, a second linear telescopic drive component, a second guide mechanism and a plurality of lifting mechanisms, the base plate is arranged at the lower part of the frame, the second guide mechanism includes two guide assemblies respectively arranged on the outer sides of the two L-shaped guide plates, the guide assembly includes a plurality of second guide columns arranged in sequence from left to right, and the lower end of each second guide column is slidably mounted on the base plate; each of the lifting mechanisms is located below one of the mold transmission mechanisms, the lifting mechanism includes a support plate and a lifting block arranged in the middle of the support plate, and the support plate is fixedly sleeved on a plurality of the second guide columns; the second linear telescopic drive component is vertically arranged on the upper part of the base plate, and the second linear telescopic drive component is connected to the lowest support plate.

[0012] Preferably, the pushing device includes a support frame, an air supply mechanism and a plurality of pushing and blowing mechanisms arranged on the support frame from top to bottom, the 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 an air jet pipe, the pushing drive component is arranged on the support frame, the horizontal guide support assembly is arranged on one side of the support frame, the pushing frame is slidably installed on the upper part of the horizontal guide support assembly, one end of the pushing frame is connected with the pushing drive component, the other end of the pushing frame is provided with the pushing plate, the air jet pipe is fixed on the pushing frame, the length direction of the air jet pipe is perpendicular to the moving direction of the pushing frame, the lower part of the air jet pipe is sequentially provided with a plurality of lower nozzles along its own length direction, the air jet pipe is connected with the air supply mechanism through the air inlet pipe, and one pushing frame can be extended above each of the mold transmission mechanisms.

[0013] Preferably, the hot pressing top plate is provided with a plurality of first heat medium channels arranged in sequence, and the outlet of the first heat medium channel of any two adjacent first heat medium channels is connected to the inlet of the second heat medium channel of the latter through a first connecting pipe to form a first reciprocating circuitous channel, the inlet of the first reciprocating circuitous channel is connected to the first heat medium inlet pipe, and the outlet of the first reciprocating circuitous channel is connected to the first heat medium outlet pipe; the hot pressing plate is provided with a plurality of second heat medium channels arranged in sequence, and the outlet of the first second heat medium channel of any two adjacent second heat medium channels is connected to the inlet of the second heat medium channel of the latter through a second connecting pipe The first heat medium inlet pipe and the second heat medium inlet pipe are connected to form a second reciprocating circuitous channel, the inlet of the second reciprocating circuitous channel is connected to the second heat medium inlet pipe, and the outlet of the second reciprocating circuitous channel is connected to the 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 electric control cabinet and a plurality of electric heating rods connected to the electric control cabinet, and one of the first heat medium inlet pipe and the second heat medium inlet pipe is inserted into each of the electric heating rods; the first heat medium inlet pipe and the second heat medium inlet pipe are both connected to the heat medium output port of the heat medium heating device, and the first heat medium outlet pipe and the second heat medium outlet pipe are both connected to the reflux port of the heat medium heating device.

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

[0015] Step 1, placing a mold frame on each of the mold transmission mechanisms, transmitting the mold frame to a side close to the hot pressing dehydration device through the mold transmission mechanism, feeding wet materials into each of the mold frames through the feeding device, and completing the feeding work; opening each of the mold transmission mechanisms, transmitting each of the mold frames containing wet materials to the top of one of the elastic supporting mechanisms, and each of the first limiting mechanisms limits the front and rear sides of one of the mold frames, and completing the mold entry action; starting the extrusion driving component to drive the hot pressing top plate to move downward, and as the hot pressing top plate and the other hot pressing plates except the lowest hot pressing plate move downward, the second filter cloth under the hot pressing top plate and the first filter cloth on the adjacent mold frame are in contact and pressed to form the filter cloth cavity, and the second filter cloth under the hot pressing plate and the first filter cloth on the adjacent mold frame are in contact and pressed to form the filter cloth cavity, and the mold closing work is completed;

[0016] Step 2, hot pressing dehydration is performed, the heat supply device provides heat to the hot pressing top plate and the hot pressing plate, and increases the downward pressure applied by the extrusion driving component, the lower surfaces of the hot pressing top plate and the hot pressing plate squeeze the mold frame adjacent thereto, and the mold frame squeezes the elastic supporting mechanism thereunder, so that the mold frame and the boss thereunder move relative to each other, exerting an extrusion effect on the wet material, and after the wet material is compressed, moisture escapes from the wet material, passes through the first filter cloth in the mold frame and the water leakage hole on the boss into the drainage cavity, and then enters the drainage device through the horizontal drainage pipe;

[0017] Step 3: Open the mold, the extrusion driving component drives the hot pressing top plate to move up, so that the hot pressing top plate and the other hot pressing plates except the bottom hot pressing plate all move up, and after the pressure on the mold frame is released, the pressure on the elastic support mechanism is also released, and the elastic support mechanism automatically moves up to push the mold frame out to the upper part of the boss;

[0018] Step 4: After the mold opening is completed, each mold transmission mechanism is opened to horizontally move each mold frame that has completed hot pressing and dehydration from the hot pressing and dehydration device to above the lifting device;

[0019] Step 5, the lifting device extends upward to push out the dry materials obtained by hot pressing and dehydration in each mold frame, and the pushing device pushes the dry materials, thereby causing the dry materials to fall onto the dry material conveying device;

[0020] Step 6: The lifting device is retracted downward so as not to hinder the horizontal movement of the mold frame, and each mold transmission mechanism is opened to push each mold frame after demoulding to a side close to the hot pressing dehydration device, and then the feeding work in step 1 is performed, and this cycle is repeated.

[0021] Compared with the prior art, the present invention has achieved the following technical effects:

[0022] The wet material hot pressing dehydration system of the present invention includes a feeding device, a mold transmission device, a lifting device, a hot pressing dehydration device, a drainage device, a heating device, a pushing device and a dry material conveying device. It adopts a vertical pressing structure, which is conducive to realizing vertical synchronous force and heat pressing dehydration of multi-stage hot pressing units. The mechanical failure rate is low and the production capacity is large. At the same time, hot pressing dehydration under high pressure and high temperature can be realized synchronously, which is conducive to reducing the moisture content of the hot pressed product and realizing deep dehydration of non-pumped wet materials, creating conditions for energy saving and cost reduction of subsequent thermal drying dehydration. The present invention effectively solves the common problems of high energy consumption and high cost of subsequent drying and dehydration in the traditional pressing dehydration process, and provides a feasible system and method for deep hot pressing dehydration of high-water-content wet materials in traditional filter presses, which is easy to realize industrial promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 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 a hot-pressing dehydration device, a mold transmission device and a material pushing device in the hot-pressing dehydration system for wet materials provided by the present invention;

[0026] Figure 3 A rear view of a hot-pressing dehydration device, a mold transmission device and a material pushing device in the hot-pressing dehydration system for wet materials provided by the present invention;

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

[0028] Figure 5 A left view of a hot-pressing dehydration device, a mold transmission device and a material pushing device in the hot-pressing dehydration system for wet materials provided by the present invention;

[0029] Figure 6 A top view of a hot pressing plate in the hot pressing and dehydration system for wet materials provided by the present invention;

[0030] Figure 7 A left view of a hot pressing plate in the hot pressing and dehydration system for wet materials provided by the present invention;

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

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

[0033] Fig.10 It is a left view of the pushing device in the wet material hot pressing dehydration system provided by the present invention;

[0034] Fig.11 A top view of a material pushing device in the wet material hot-pressing dehydration system provided by the present invention.

[0035] Explanation of reference numerals: 1. main feeder; 2. material distributor; 3. quantitative feeder; 4. mold transmission device; 41. vertical bracket; 42. lower horizontal bracket; 43. upper horizontal bracket; 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 column; 57, hot pressing plate; 571, second heat medium inlet pipe; 572, second heat medium channel; 573, second connecting pipe; 574, second heat medium outlet pipe; 575, drainage cavity; 576, water leakage hole; 577, horizontal drainage pipe; 578, lower through hole; 579, first mounting hole; 5710, third mounting hole; 5711, third threaded hole; 5712, stop block; 5713, second upper through hole; 5714, second guide hole; 58, mold Frame; 581, annular groove; 582, annular filter cloth strip; 583, first threaded hole; 59, boss; 510, hot pressing top plate; 511, connecting platform; 512, support frame; 513, limit plate; 514, guide rod; 515, spring; 516, second filter cloth; 517, connecting screw; 518, nut; 519, upper plate; 520, first guide column; 6, drainage branch pipe; 7, drainage collection pipe; 8, buffer pool; 9, dry material conveying device; 10, heating Device; 11. Pushing device; 111. Air compressor; 112. General distribution air pipe; 113. Support frame; 114. Pushing cylinder; 115. Horizontal guide rail; 116. Horizontal main rod; 117. Horizontal side rod; 118. Pushing plate; 119. Inlet pipe; 1110. Jet pipe; 1111. Lower nozzle; 12. Lifting device; 121. Bottom plate; 122. Second guide column; 123. Second cylinder; 124. Second piston rod; 125. Support plate; 126. Lifting block. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The purpose of the present invention is to provide a wet material hot pressure dehydration system and an operation method thereof, which can achieve deep dehydration of non-pumped wet materials and create conditions for subsequent thermal drying and dehydration energy saving and cost reduction.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] like Figure 1-Figure 11 As shown, this embodiment provides a wet material hot pressing dehydration system, including a feeding device, a mold transmission 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 pressing dehydration device 5 includes a base 54, a mounting frame, an extrusion driving component, a hot pressing top plate 510, a plurality of hot pressing plates 57, a plurality of connecting mechanisms, a plurality of mold frames 58, a plurality of elastic supporting mechanisms and a plurality of first limiting mechanisms. The mounting frame is arranged on the upper part of the base 54, the extrusion driving component is arranged on the top of the mounting frame, the lower end of the extrusion driving component is connected to the hot pressing top plate 510, the hot pressing top plate 510 and the plurality of hot pressing plates 57 are arranged in sequence from top to bottom, the lowest hot pressing plate 57 is fixed on the base 54, the hot pressing top plate 510 is connected to the adjacent hot pressing plates 57 through a connecting mechanism, any two adjacent hot pressing plates 57 are connected through a connecting mechanism, the connecting mechanism and the hot pressing top plate 510 connected thereto can generate vertical relative movement, the connecting mechanism and the hot pressing plates 57 connected thereto can generate vertical relative movement, a boss 59 is arranged on the top of each hot pressing plate 57, and a An elastic support mechanism is provided, each elastic support mechanism is sleeved on the outside of a boss 59, a first limiting mechanism is provided on the upper part of each elastic support mechanism, 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, a first filter cloth is provided on the upper part of each mold frame 58, and each boss 59 can extend into a mold frame 58; a second filter cloth 516 is provided on the lower part of the hot pressing top plate 510 and other hot pressing plates 57 except the lowest hot pressing plate 57, and each second filter cloth 516 can form a filter cloth cavity when it contacts the first filter cloth on the mold frame 58 adjacent to it; a drainage cavity 575 is provided inside the boss 59, a leaking hole 576 connected to the drainage cavity 575 is provided on the top of the boss 59, and a horizontal drainage pipe 577 connected to the drainage cavity 575 is provided on the hot pressing plate 57, and the horizontal drainage pipe 577 is connected to the 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 transmission device 4 includes a frame and a plurality of mold transmission mechanisms arranged on the frame from top to bottom, the frame is arranged on one side of the hot pressing dehydration device 5, the mold transmission mechanism corresponds to the hot pressing plate 57 one by one, the feeding device is used to feed the wet material into the mold frame 58, and each mold transmission mechanism is used to drive a mold frame 58 to move left and right, so that each mold frame 58 moves to the upper part of an elastic support mechanism, and a lifting device 12 is provided at the lower part of the side of the frame away from the hot pressing dehydration device 5, and the lifting device 12 is used to push the dry material obtained by hot pressing and dehydration in each mold frame 58 upward, and the pushing device 11 is used to push the dry material, so that the dry material falls onto the dry material conveying device 9.

[0042] The wet material in this embodiment is a non-pumpable wet material, which refers to mud or wet powder that cannot be pumped and contains water. Specifically, it includes but is not limited to filter cakes containing high moisture and certain solid particles after plate and frame filter pressing dehydration, diaphragm pressing dehydration, screw press dehydration, and filtration dehydration, which are produced in large quantities in industrial and agricultural production and life processes, such as chemical products of various water medium reactions, industrial sludge, desulfurized gypsum, coal washing mud, tailings mud, river sludge, etc.

[0043] The vertical pressing structure adopted in this embodiment is conducive to realizing the vertical synchronous force and heat pressing dehydration of multi-stage hot pressing units, with low mechanical failure rate and large production capacity. At the same time, hot pressing dehydration under high pressure and high temperature can be realized synchronously, which is conducive to reducing the moisture content of hot pressing products and realizing deep dehydration of non-pumping wet materials, creating conditions for energy saving and cost reduction of subsequent thermal drying dehydration. This embodiment effectively solves the common problems of high energy consumption and high cost of subsequent drying dehydration in the traditional pressing dehydration process, and provides a feasible system and method for deep hot pressing dehydration of high-water-content wet materials in traditional filter presses, which is easy to realize industrial promotion and application.

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

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

[0046] In this embodiment, a hot pressing and dehydrating device 5 and a mold frame 58 are separated for operation. Meanwhile, two mold transmission devices 4, lifting devices 12 and pushing devices 11 are provided. When a mold frame 58 loaded with wet materials transmitted by one mold transmission device 4 is undergoing hot pressing and dehydrating operation in the hot pressing and dehydrating device 5, a mold frame 58 of another mold transmission device 4 can perform feeding and demolding operations, thereby achieving synchronous operation of feeding, demolding and hot pressing and dehydrating. The mold frames 58 loaded with wet materials on the two mold transmission devices 4 are circulated into the hot pressing and dehydrating device 5 for hot pressing and dehydrating operation, thereby greatly improving the effective dehydration time of the hot pressing and dehydrating device 5, thereby improving the production capacity, and being conducive to meeting the needs of large-scale industrial production.

[0047] The feeding device includes a main feeder 1, a material distributor 2 and two quantitative feeders 3. The main feeder 1 is located above the material distributor 2, and the discharge port of the main feeder 1 is docked with the feed port of the material distributor 2. The material distributor 2 is located above the two quantitative feeders 3, and the two discharge ports of the material distributor 2 are respectively docked with the feed ports of the two quantitative feeders 3. The discharge ports of each quantitative feeder 3 are located above a mold transmission device 4 close to the hot pressing dehydration device 5, and then the main feeder 1, the material distributor 2 and the two quantitative feeders 3 cooperate to realize the quantitative feeding of the mold frames 58 on the two mold transmission devices 4. In this embodiment, the material distributor 2 adopts a reciprocating belt conveyor with two ends for discharging.

[0048] The elastic support mechanism includes a support frame 512 and a plurality of elastic connection components. A plurality of first mounting holes 579 arranged from front to back are provided on the left and right sides of the hot pressing plate 57. The elastic connection components include a guide rod 514 and a spring 515 sleeved on the guide rod 514. A plurality of 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 that of the mold frame 58, and 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, so that the boss 59 can be inserted into the mold frame 58 and can move vertically freely in the mold frame 58. The inner and outer ring structural dimensions of the support frame 512 are the same as those of the mold frame 58, and the inner ring dimension is slightly larger than the outer dimension of the boss 59, so that the mold frame 58 can move freely up and down along the boss 59.

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

[0051] A second limiting mechanism is provided at the lower part of the hot pressing top plate 510 and other hot pressing plates 57 except the lowest hot pressing plate 57, and the second limiting mechanism is used to limit the left and right sides of the mold frame 58 when the hot pressing top plate 510 and other hot pressing plates 57 except the lowest hot pressing plate 57 are pressed down.

[0052] The second limiting mechanism includes two second limiting components, and a second limiting component is disposed on both sides of the lower part of the hot pressing top plate 510 and the other hot pressing plates 57 except the lowest hot pressing plate 57. The second limiting component includes two limiting blocks 5712.

[0053] In this embodiment, the first limiting mechanism and the second limiting mechanism cooperate to achieve precise positioning of the mold frame.

[0054] The connection mechanism includes a plurality of connection components, and the connection components include a connection screw 517 and two nuts 518, and the two nuts 518 are respectively used to be installed at the two ends of the connection screw 517. The front and rear sides of the hot pressing plate 57 are provided with a plurality of lower through holes 578 arranged sequentially from left to right for the lower end of the connection screw 517 to pass through, and the front and rear sides of the hot pressing top plate 510 are provided with a plurality of first upper through holes arranged sequentially from left to right for the upper end of the connection screw 517 to pass through, and the front and rear sides of the other hot pressing plates 57 except the bottom hot pressing plate 57 are provided with a plurality of second upper through holes 5713 arranged sequentially from left to right for the upper end of the connection screw 517 to pass through. The upper and lower ends of the connection screw 517 in the connection mechanism for connecting the hot pressing top plate 510 and the hot pressing plate 57 pass through the first upper through hole and the lower through hole 578 respectively and are installed with nuts 518, so that the hot pressing top plate 510 and the hot pressing plate 57 adjacent thereto can slide relative to the connection screw 517. The upper and lower ends of the connecting screw 517 in the connecting mechanism for connecting two adjacent hot pressing plates 57 respectively pass through the second upper through hole 5713 and the lower through hole 578 and are installed with nuts 518, so that the two adjacent hot pressing plates 57 can slide relative to the connecting screw 517.

[0055] A first guide mechanism is provided on the upper part of each hot pressing plate 57, and the first guide mechanism includes a plurality of first guide columns 520. A plurality of first guide columns 520 arranged sequentially from left to right are provided on both the front and rear sides of the upper part of the hot pressing plate 57. Specifically, a plurality of third mounting holes 5710 arranged sequentially from left to right are provided on both the front and rear sides of the upper part of the hot pressing plate 57, and the lower end of each first guide column 520 is fixed in a third mounting hole 5710. A plurality of first guide holes for the first guide columns 520 to pass through are provided on the hot pressing top plate 510, and a plurality of second guide holes 5714 for the first guide columns 520 to pass through are provided on the other hot pressing plates 57 except the bottom hot pressing plate 57. By providing the first guide mechanism, the hot pressing top plate 510 and the other hot pressing plates 57 except the bottom hot pressing plate 57 are guided.

[0056] The mold transmission mechanism includes a first linear telescopic driving 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. The L-shaped guide plates 44 include a horizontal plate and a vertical plate arranged 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. The mold frame 58 is used to be placed on the two horizontal plates, and the two vertical plates are used to guide the front and rear sides of the mold frame 58. The first linear telescopic driving component is arranged on the frame and is located on the side away from the hot pressing and dehydrating device 5. The side of the first linear telescopic driving component close to the hot pressing and dehydrating device 5 is provided with a horizontal push rod 47. The length direction of the horizontal push rod 47 is perpendicular to the length direction of the first linear telescopic driving component. The side of the horizontal push rod 47 close to the hot pressing and dehydrating device 5 is provided with an electromagnet 48. When the electromagnet 48 is energized, it can adsorb the mold frame 58.

[0057] When the mold frame 58 needs to be moved, the electromagnet 48 is energized so that the electromagnet 48 absorbs the mold frame 58; when the mold frame 58 needs to be in a free state, the electromagnet 48 is deenergized.

[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 pressing and dehydration device 5, so that the first linear telescopic driving component can push the mold frame 58 to smoothly enter the top of the support frame 512, so that the first linear telescopic driving component can push the mold frame 58 to perform horizontal reciprocating motion on the same horizontal plane corresponding to the hot pressing and dehydration device 5 and the mold transmission mechanism, completing the entire process of feeding the wet material in the mold frame 58, hot pressing and dehydration, demolding the dry material and cleaning the first filter cloth.

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

[0060] The mold transmission device 4 further includes a receiving hopper 49 disposed on the top of the frame, the receiving hopper 49 is located above the uppermost mold transmission mechanism and is located on a side close to the hot pressing dehydration device 5. The receiving hoppers 49 on the two mold transmission 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 transmission mechanism along the left-right direction can accommodate two mold frames 58, that is, two mold berths are formed between the two L-shaped guide plates 44 of each transmission mechanism, and the mold berth close to the hot pressing dehydration device 5 on the side of the two mold berths is the feeding berth, and the mold berth located above the lifting device 12 is the lifting berth.

[0062] The mold transmission device 4 also includes a plurality of guide plates 410, which are arranged in sequence from top to bottom on a side of the frame away from the pushing device 11, and the guide plates 410 correspond one to one with the mold transmission mechanism. Each guide plate 410 is used to guide the dry material that is pushed out of a mold frame 58 so that it falls smoothly onto the dry material conveying device 9.

[0063] The lifting device 12 includes a base plate 121, a second linear telescopic driving component, a second guide mechanism and a plurality of lifting mechanisms. The base plate 121 is arranged at the lower part of the frame. The second guide mechanism includes two guide assemblies respectively arranged on the outer sides of the two L-shaped guide plates 44. The guide assembly includes a plurality of second guide columns 122 arranged in sequence from left to right. The lower end of each second guide column 122 is slidably mounted on the base plate 121. Each lifting mechanism is located below a mold transmission mechanism. The lifting mechanism includes a support plate 125 and a lifting block 126 arranged in the middle of the support plate 125. The support plate 125 is fixedly mounted on the plurality of second guide columns 122. The second linear telescopic driving component is vertically arranged on the upper part of the base plate 121, and the second linear telescopic driving component is connected to the lowest support plate 125.

[0064] When the second linear telescopic driving component is extended, it can lift up the first filter cloth and dry material of each layer of the mold frame 58, which is convenient for demolding the dry material. When it shrinks, it creates space for the mold transmission mechanism to move horizontally, avoiding obstructing the horizontal movement of the mold frame 58. Specifically, when the second linear telescopic driving component drives the lowest support plate 125 and the lifting block 126 on it to move upward, it can simultaneously drive other support plates 125 and the lifting blocks 126 on them to move upward together, and then can simultaneously lift up the dry materials in multiple mold frames 58 arranged in sequence from top to bottom. When the second linear telescopic driving component drives the lowest support plate 125 and the lifting block 126 on it to move downward, it can simultaneously drive other support plates 125 and the lifting blocks 126 on them to move downward together, and ensure that the upper surfaces of all the lifting blocks 126 are flush with the upper surfaces of the corresponding horizontal plates on the same layer, and do not hinder the horizontal movement of the mold frame 58.

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

[0066] Specifically, the frame includes a vertical support 41, a lower horizontal support 42 and a plurality of upper horizontal supports 43, the lower horizontal support 42 and the plurality of upper horizontal supports 43 are sequentially arranged on the vertical support 41 from bottom to top, and the bottom plate 121 is arranged on the lower horizontal support 42. Each mold transmission 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 driving component is arranged at one end of the upper horizontal support 43 away from the hot pressing 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 beams connected end to end, and the upper horizontal support 43 includes four upper beams connected end to end.

[0068] like Fig.10 and Fig.11 As shown, the pushing device 11 includes a support frame 113, an air supply mechanism and a plurality of pushing and blowing mechanisms arranged on the support frame 113 from top to bottom, the pushing and blowing mechanism includes a pushing driving component, a horizontal guide support assembly, a pushing frame, a pushing plate 118, an air inlet pipe 119 and an air jet pipe 1110, the pushing driving component is arranged on the support frame 113, the horizontal guide support assembly is arranged on one side of the support frame 113, the pushing frame is slidably installed on the upper part of the horizontal guide support assembly, one end of the pushing frame is connected to the pushing driving component, the other end of the pushing frame is provided with a pushing plate 118, the air jet pipe 1110 is fixed on the pushing frame, the length direction of the air jet pipe 1110 is perpendicular to the moving direction of the pushing frame, the lower part of the air jet pipe 1110 is sequentially provided with a plurality of lower nozzles 1111 along its own length direction, the air jet pipe 1110 is connected to the air supply mechanism through the air inlet pipe 119, and a pushing frame can be extended above each mold transmission mechanism.

[0069] The pusher frame in this embodiment includes a horizontal main rod 116 and two horizontal side rods 117 respectively arranged on both sides of the horizontal main rod 116, the horizontal side rods 117 are perpendicular to the horizontal main rod 116, and the two horizontal side rods 117 are slidably mounted on the horizontal guide support assembly. The pusher plate 118 is connected to one 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. The 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 air jet pipe 1110, and the two ends of the air jet pipe 1110 are closed and respectively connected to the two horizontal side rods 117.

[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 horizontal guide rail 115 .

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

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

[0073] A plurality of second threaded holes are provided around the lower portion of the hot pressing top plate 510, and the second threaded holes are used to install second bolts, and the second bolts are used to fix the second filter cloth 516 to the lower portion of the hot pressing top plate 510. A plurality of third threaded holes 5711 are provided around the lower portion of the other hot pressing plates 57 except the lowest hot pressing plate 57, and the third threaded holes 5711 are used to install third bolts, and the third bolts are used to fix the second filter cloth 516 to the lower portion of the hot pressing plate 57.

[0074] A plurality of first heat medium channels arranged in sequence are provided on the hot pressing top plate 510, and the outlet of the previous first heat medium channel and the inlet of the next first heat medium channel of any two adjacent first heat medium channels are connected through a first connecting pipe to form a first reciprocating detour channel, and the inlet of the first reciprocating detour channel is connected with the first heat medium inlet pipe, and the outlet of the first reciprocating detour channel is connected with the 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, and each first heat medium channel is extended along the left and right direction of the hot pressing top plate 510, and the plurality of first heat medium channels are arranged in sequence in the hot pressing top plate 510 from front to back.

[0075] A plurality of second heat medium channels 572 are arranged in sequence on the hot press plate 57. The outlet of the previous second heat medium channel 572 of any two adjacent second heat medium channels 572 is connected to the inlet of the subsequent second heat medium channel 572 through a second connecting pipe 573 to form a second reciprocating circuitous channel. The inlet of the second reciprocating circuitous channel is connected to a second heat medium inlet pipe 571, and the outlet of the second reciprocating circuitous 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, and each second heat medium channel 572 is extended along the left and right direction of the hot press plate 57. The plurality of second heat medium channels 572 are arranged in sequence in the hot press plate 57 from front to back.

[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 electric control cabinet and a plurality of electric heating rods connected to the electric 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 electric control cabinet is connected to a power supply, and the electric control cabinet is connected to the electric heating rods through cables, and the plurality of electric heating rods heat the hot pressing top plate 510 and the hot pressing plate 57 respectively.

[0077] When a heat medium heating device is used, the first heat medium inlet pipe and the second heat medium inlet pipe 571 are both connected to the heat medium outlet of the heat medium heating device, and the first heat medium outlet pipe and the second heat medium outlet pipe 574 are both connected to the return port of the heat medium heating device. The heat medium heating device in this embodiment 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 connecting pipe, a steam outlet connecting pipe and a steam trap, and the connection method is as follows: the steam outlet of the steam generator is fixedly connected with the steam inlet of the regulating valve, the steam outlet of the regulating valve is fixedly connected with the first heat medium inlet pipe and the second heat medium inlet pipe 571 respectively through the steam inlet connecting pipe, the first heat medium outlet pipe and the second heat medium outlet pipe 574 are fixedly connected with the steam inlet of the steam trap through the steam outlet connecting pipe, and the water outlet of the steam trap is fixedly connected with the water inlet of the steam generator through a pipe, so as to achieve energy saving and recycling of water resources.

[0079] The thermal oil heating device includes an electric heater, an oil outlet valve, an oil inlet connecting pipe, an oil outlet connecting pipe and an oil return valve, and its connection method is: the oil outlet of the electric heater is fixedly connected with the oil inlet of the oil outlet valve, the oil outlet of the oil outlet valve is fixedly connected with the first heat medium inlet pipe and the second heat medium inlet pipe 571 respectively through the oil inlet connecting pipe, the first heat medium inlet pipe and the second heat medium inlet pipe 571 are fixedly connected with the oil inlet of the oil return valve through the oil outlet connecting pipe, and the oil outlet of the oil return valve is fixedly connected with the oil inlet of the electric heater through the pipe.

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

[0081] In this embodiment, the hot pressing plate 57 is provided with a drainage channel for connecting the drainage cavity 575 and the horizontal drainage pipe 577. Specifically, two horizontal drainage pipes 577 are provided, and the two horizontal drainage pipes 577 are respectively arranged at the front and rear sides of the hot pressing plate 57, and the two horizontal drainage pipes 577 are connected to the drainage channel.

[0082] In this embodiment, four mutually unconnected drainage cavities 575 are provided in the boss 59, that is, a cross-shaped support structure is left in the middle of the boss 59, so that the boss 59 can achieve drainage while maintaining support stability. A plurality of water leakage holes 576 are correspondingly provided on the upper part of each drainage cavity 575, and each drainage cavity 575 is connected to a horizontal drainage pipe 577 through a drainage pipe.

[0083] In this specific embodiment, the hot pressing top plate 510 and the hot pressing plate 57 are both metal plates, the mold frame 58 is a U-shaped metal frame, and the first heat medium inlet pipe, the second heat medium inlet pipe 571, the first heat medium outlet pipe and the second heat 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 a plurality of third guide posts 56, the upper and lower ends of each of the third guide posts 56 are respectively connected to the upper plate 519 and the base 54, and the extrusion drive component is disposed on the upper plate 519. A movable end plate 55 is disposed on the plurality of third guide posts 56, the lower end of the extrusion drive component is connected to the upper portion of the movable end plate 55, and the lower portion of the movable end plate 55 is connected to the hot pressing top plate 510 through the connecting platform 511.

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

[0086] In this specific embodiment, the extrusion driving component is a cylinder 52, and the hot pressing dehydration device 5 also includes a hydraulic station 51, which is connected to the cylinder 52 through an oil pipe. The 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 cylinder 52 is fixedly connected to the upper part of the movable end plate 55.

[0087] This embodiment also provides an operating method of a wet material hot-pressing dehydration system, comprising the following steps:

[0088] Step 1, placing a mold frame 58 on each mold transmission mechanism, transmitting the mold frame 58 to a side close to the hot pressing dehydration device 5 through the mold transmission mechanism, feeding wet materials into each mold frame 58 through the feeding device, and completing the feeding work; opening each mold transmission mechanism, transmitting each mold frame 58 containing wet materials to the top of an elastic support mechanism, and each first limiting mechanism limits the front and rear sides of a mold frame 58, and completing the mold entry action; starting the extrusion driving component to drive the hot pressing top plate 510 to move downward, with the downward movement of the hot pressing top plate 510 and other hot pressing plates 57 except the lowest hot pressing plate 57, the second filter cloth 516 under the hot pressing top plate 510 and the first filter cloth on the adjacent mold frame 58 are in contact and pressed to form a filter cloth cavity, so that the second filter cloth 516 under the hot pressing plate 57 and the first filter cloth on the adjacent mold frame 58 are in contact and pressed to form a filter cloth cavity, and the mold closing work is completed. In 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 the lowest hot pressing plate are pressed down, thereby achieving precise positioning of the mold frame.

[0089] Specifically, first, start the first linear telescopic drive component of the bottom layer to transfer the bottom mold frame 58 from the lifting berth far away from the hot pressing dehydration device 5 to the feeding berth adjacent to the hot pressing dehydration device 5, and then start the main feeder 1, the material distribution machine 2 and the quantitative feeder 3 above respectively, and feed the wet material quantitatively into the bottom mold frame 58, and then transfer the mold frame 58 to the feeding berth from bottom to top in turn, and complete the quantitative feeding of each layer of the mold frame 58 in turn, and finally complete 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 pressing and dehydrating device 5 by the first linear telescopic driving component to complete the mold entry action.

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

[0092] Step 2: hot pressing dehydration. The heating device 10 provides heat to the hot pressing top plate 510 and the hot pressing plate 57 to increase the downward pressure applied by the extrusion drive component. Specifically, the pressure of the hydraulic station 51 continues to increase, and the 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 squeeze the mold frame 58 adjacent to them, and the mold frame 58 squeezes the elastic supporting mechanism below it, so that the mold frame 58 and the boss 59 below it move relative to each other, exerting an extrusion effect on the wet material. After the wet material is compressed, moisture escapes from the wet material, passes through the first filter cloth in the mold frame 58 and the leakage hole 576 on the boss 59 into the drainage cavity 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, the 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, the heat is transferred from the upper surface of the boss 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 is heated by the vaporization of the hot water and expands in volume, generating internal pressure, accelerating the extrusion of the water in the material, and completing the hot pressing dehydration process after a period of time.

[0094] Step three, open the mold, the extrusion drive component drives the hot pressing top plate 510 to move upward, so that the hot pressing top plate 510 and other hot pressing plates 57 except the lowest hot pressing plate 57 all move upward, and after the pressure on the mold frame 58 is released, the pressure on the elastic support mechanism is also released, and the elastic support mechanism automatically moves upward to push the mold frame 58 out to the upper part of the boss 59.

[0095] Specifically, the extrusion piston rod 53 of the oil cylinder 52 is recovered to drive the movable end plate 55, and the movable end plate 55 drives the hot pressing top plate 510 to move up along the first guide column 520 to separate from the adjacent mold frame 58. After the pressure on the mold frame 58 is released, the pressure on the support frame 512 is also released. Under the action of the spring 515, the support frame 512 automatically moves up to push the mold frame 58 out to the upper part of the boss 59; the extrusion piston rod 53 of the oil cylinder 52 continues to move up, and the connecting screw 517 on the hot pressing top plate 510 is pulled up vertically, and the connecting screw 517 drives the next layer of hot pressing plate 57 connected thereto to move up, and so on, 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, each mold transmission mechanism is opened to horizontally move each mold frame 58 that has completed hot pressing and dehydration from the hot pressing and dehydration device 5 to the top of the lifting device 12.

[0097] At the same time, the mold transfer mechanisms on the mold transfer device 4 on the other side are opened, and the mold frame 58 that has completed the wet material loading is pushed horizontally into the hot pressing dehydration device 5 from the other side of the hot pressing dehydration device 5 to start the second round of dehydration operation of the hot pressing dehydration device 5.

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

[0099] In the process of pushing the dry material by the pushing device 11, the pushing piston push rod of the pushing cylinder 114 drives the pushing frame and its pushing plate 118, air inlet pipe 119, air jet pipe 1110 and lower nozzle 1111 fixed on the pushing frame to move horizontally on the horizontal guide rail 115. When the pushing plate 118 passes horizontally through the dry material on the upper surface of the mold frame 58, it pushes the dry material to be separated from the first filter cloth; at the same time, the lower nozzle 1111, which moves forward closely behind the pushing plate 118, sprays compressed air to purge the dry material remaining on the surface of the first filter cloth, thereby automatically cleaning the residual material on the surface of the first filter cloth. The peeled dry material falls onto the dry material conveyor, and the dry material is transported away in time, completing the pushing and filter cloth cleaning process. Subsequently, the pushing frame on the pushing device 11 retreats horizontally, evacuates the mold frame 58 and waits for the next action.

[0100] Step six, the lifting device 12 is retracted downward so as not to hinder the horizontal movement of the mold frame 58, and each mold transmission mechanism is opened to push each mold frame 58 after demolding to the side close to the hot pressing dehydration device 5, that is, the mold frame 58 after demolding is pushed to the feeding berth, and then the feeding work in step one is carried out, and this cycle is repeated to achieve continuous production.

[0101] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A wet material hot pressing dehydration system, characterized in that: The invention comprises a feeding device, a mold transmission device, a lifting device, a hot pressing dehydration device, a drainage device, a heating device, a pushing device and a dry material conveying device, wherein the hot pressing dehydration device comprises a base, a mounting frame, an extrusion driving component, a hot pressing top plate, a plurality of hot pressing plates, a plurality of connecting mechanisms, a plurality of mold frames, a plurality of elastic supporting mechanisms and a plurality of first limiting mechanisms, wherein the mounting frame is arranged on the upper part of the base, the extrusion driving component is arranged on the top of the mounting frame, the lower end of the extrusion driving component is connected to the hot pressing top plate, the hot pressing top plate and the plurality of hot pressing plates are arranged in sequence from top to bottom, the lowest hot pressing plate is fixed on the base, the hot pressing top plate is connected to the adjacent hot pressing plates through one of the connecting mechanisms, and the hot pressing top plate is connected to the adjacent hot pressing plates through one of the connecting mechanisms. The hot pressing plates are connected, any two adjacent hot pressing plates are connected by a connecting mechanism, the connecting mechanism and the hot pressing top plate connected thereto can generate vertical relative movement, the connecting mechanism and the hot pressing plates connected thereto can generate vertical relative movement, each of the hot pressing plates is provided with a boss on the upper part, each of the hot pressing plates is provided with an elastic supporting mechanism, each of the elastic supporting mechanisms is sleeved on the outside of a boss, each of the elastic supporting mechanisms is provided with a first limiting mechanism on the upper part, each of the elastic supporting mechanisms is used to support a mold frame, and each of the first limiting mechanisms is used to limit the front and rear sides of a mold frame The filter cloth is provided on the upper part of each mold frame, and each boss can extend into one mold frame; the lower part of the hot pressing top plate and the other hot pressing plates except the lowest hot pressing plate are provided with a second filter cloth, and each second filter cloth can form a filter cloth cavity when in contact with the first filter cloth on the adjacent mold frame; a drainage cavity is provided inside the boss, a water leakage hole connected to the drainage cavity is provided on the top of the boss, a horizontal drainage pipe connected to the drainage cavity is provided on the hot pressing plate, and the horizontal drainage 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 transmission device includes a frame and multiple The frame is provided with a mold transmission mechanism arranged on the frame from top to bottom, the frame is arranged on one side of the hot pressing and dehydrating device, the mold transmission mechanism corresponds to the hot pressing plate one by one, the feeding device is used to feed the wet material into the mold frame, each of the mold transmission mechanisms is used to drive a mold frame to move left and right, so that each mold frame moves to the upper part of an elastic support mechanism, and the lower part of the frame away from the hot pressing and dehydrating device is provided with the lifting device, the lifting device is used to push the dry material obtained by hot pressing and dehydration in each mold frame upward, and the pushing device is used to push the dry material, so that the dry material falls onto the dry material conveying device.

2. The wet material hot-pressing dehydration system according to claim 1 is characterized in that: The mold transmission device, the lifting device, the pushing device and the dry material conveying device are each provided with two, the two mold transmission devices are respectively provided on the left and right sides of the hot pressing dehydration device, each pushing device is provided on the front side or the rear side of one mold transmission device, and each dry material conveying device is provided on the side of one mold transmission device away from the pushing device; the feeding device comprises a main feeder, a material distributor and two quantitative feeders, the main feeder is located above the material distributor, and the material outlet of the main feeder is connected with the material inlet of the material distributor, the material distributor is located above the two quantitative feeders, and the two material outlets of the material distributor are respectively connected with the material inlets of the two quantitative feeders, and the material outlets of each quantitative feeder are located above one side of the mold transmission device close to the hot pressing 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 a plurality of elastic connection components, a plurality of first mounting holes arranged in sequence from front to back are provided on the left and right sides of the hot pressing plate, the elastic connection component includes a guide rod and a spring sleeved on the guide rod, a plurality of second mounting holes are provided on the support frame, the lower end of each guide rod is fixed in a first mounting hole, the upper end of each guide rod passes through a second mounting hole, and the support frame can be sleeved on the boss; the first limiting mechanism includes two first limiting components, and the two first limiting components are respectively arranged on the support frame The front and rear sides of the part, the two first limiting components are used to limit the front and rear sides of the mold frame; the hot pressing top plate and the lower parts of the other hot pressing plates except the lowest hot pressing plate are provided with a second limiting mechanism, the second limiting mechanism is 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 lowest hot pressing plate are pressed down; the second limiting mechanism includes two second limiting components, and the hot pressing top plate and the lower left and right sides of the other hot pressing plates except the lowest hot pressing plate are provided with a second limiting component.

4. The wet material hot-pressing dehydration system according to claim 1, characterized in that: The connecting mechanism includes multiple connecting components, and the connecting components include connecting screws and two nuts, and the front and rear sides of the hot pressing plate are provided with multiple lower through holes arranged in sequence from left to right for the lower ends of the connecting screws to pass through, and the front and rear sides of the hot pressing top plate are provided with multiple first upper through holes arranged in sequence from left to right for the upper ends of the connecting screws to pass through, and the front and rear sides of the other hot pressing plates except the bottom hot pressing plate are provided with multiple second upper through holes arranged in sequence from left to right for the upper ends of the connecting screws to pass through; the upper and lower ends of the connecting screw in the connecting mechanism for connecting the hot pressing top plate and the hot pressing plate respectively pass through the first upper through hole and the lower through hole and are installed with the nuts, and the upper and lower ends of the connecting screw in the connecting mechanism for connecting two adjacent hot pressing plates respectively pass through the second upper through hole and the lower through hole and are installed with the nuts.

5. The wet material hot-pressing dehydration system according to claim 1, characterized in that: A first guide mechanism is provided on the upper part of each of the hot pressing plates, and the first guide mechanism includes a plurality of first guide columns, and a plurality of first guide columns are provided on the front and rear sides of the upper part of the hot pressing plate in sequence from left to right, and a plurality of first guide holes for the first guide columns to pass through are provided on the hot pressing top plate, and a second guide hole for the first guide columns to pass through is provided on the other hot pressing plates except the lowest hot pressing plate.

6. The wet material hot-pressing dehydration system according to claim 1, characterized in that: The mold transmission 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, the L-shaped guide plate includes a horizontal plate and a vertical plate arranged 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 arranged on the frame and is located on the side away from the hot pressing and dehydration device, the first linear telescopic drive component is provided with the horizontal push rod on the side close to the hot pressing and dehydration device, the horizontal push rod is provided with the electromagnet on the side close to the hot pressing and dehydration device, and the electromagnet can adsorb the mold frame when energized.

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 driving component, a second guide mechanism and a plurality of lifting mechanisms, the base plate is arranged at the lower part of the frame, the second guide mechanism includes two guide assemblies respectively arranged at the outer sides of the two L-shaped guide plates, the guide assembly includes a plurality of second guide columns arranged in sequence from left to right, and the lower end of each second guide column is slidably mounted on the base plate; each of the lifting mechanisms is located below one of the mold transmission mechanisms, the lifting mechanism includes a support plate and a lifting block arranged in the middle of the support plate, and the support plate is fixedly sleeved on the plurality of second guide columns; the second linear telescopic driving component is vertically arranged at the upper part of the base plate, and the second linear telescopic driving component is connected to the lowest support plate.

8. The wet material hot-pressing dehydration system according to claim 1, characterized in that: The pushing device comprises a support frame, an air supply mechanism and a plurality of pushing and blowing mechanisms arranged on the support frame from top to bottom in sequence. The pushing and blowing mechanism comprises a pushing driving component, a horizontal guiding support assembly, a pushing frame, a pushing plate, an air inlet pipe and an air jet pipe. The pushing driving component is arranged on the support frame, the horizontal guiding support assembly is arranged on one side of the support frame, the pushing frame is slidably installed on the upper part of the horizontal guiding support assembly, one end of the pushing frame is connected with the pushing driving component, the other end of the pushing frame is provided with the pushing plate, the air jet pipe is fixed on the pushing frame, the length direction of the air jet pipe is perpendicular to the moving direction of the pushing frame, the lower part of the air jet pipe is sequentially provided with a plurality of lower nozzles along its own length direction, the air jet pipe is connected with the air supply mechanism through the air inlet pipe, and one pushing frame can be extended into the top of each of the mold transmission mechanisms.

9. The wet material hot-pressing dehydration system according to claim 1, characterized in that: The hot pressing top plate is provided with a plurality of first heat medium channels arranged in sequence, and the outlet of the first heat medium channel in front of any two adjacent first heat medium channels is connected to the inlet of the second heat medium channel in the rear through a first connecting pipe to form a first reciprocating circuitous channel, the inlet of the first reciprocating circuitous channel is connected to the first heat medium inlet pipe, and the outlet of the first reciprocating circuitous channel is connected to the first heat medium outlet pipe; the hot pressing plate is provided with a plurality of second heat medium channels arranged in sequence, and the outlet of the first second heat medium channel in front of any two adjacent second heat medium channels is connected to the inlet of the second heat medium channel in the rear through a second connecting pipe The heat supply device is an electric heating device or a heat medium heating device, and the electric heating device includes an electric control cabinet and a plurality of electric heating rods connected to the electric control cabinet, and one of the first heat medium inlet pipe and the second heat medium inlet pipe is inserted into each of the first heat medium inlet pipe and the second heat medium inlet pipe; the first heat medium inlet pipe and the second heat medium inlet pipe are both connected to the heat medium output port of the heat medium heating device, and the first heat medium outlet pipe and the second heat medium outlet pipe are both connected to the reflux port of the heat medium heating device.

10. An operating method of a wet material hot-pressing dehydration system as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Place a mold frame on each mold transmission mechanism, transmit the mold frame to the side close to the hot pressing dehydration device through the mold transmission mechanism, feed wet materials into each mold frame through the feeding device to complete the feeding work; open each mold transmission mechanism, transmit each mold frame containing wet materials to the top of one of the elastic support mechanisms, and each of the first limiting mechanisms limits the front and rear sides of one of the mold frames to complete the mold feeding action; The extrusion driving component is started to drive the hot pressing top plate to move downward, and as the hot pressing top plate and the other hot pressing plates except the lowest hot pressing plate move downward, the second filter cloth below the hot pressing top plate and the first filter cloth on the adjacent mold frame are pressed and contacted to form the filter cloth cavity, and the second filter cloth below the hot pressing plate and the first filter cloth on the adjacent mold frame are pressed and contacted to form the filter cloth cavity, thereby completing the mold closing work; Step 2, hot pressing dehydration is performed, the heat supply device provides heat to the hot pressing top plate and the hot pressing plate, and increases the downward pressure applied by the extrusion driving component, the lower surfaces of the hot pressing top plate and the hot pressing plate squeeze the mold frame adjacent thereto, and the mold frame squeezes the elastic supporting mechanism thereunder, so that the mold frame and the boss thereunder move relative to each other, exerting an extrusion effect on the wet material, and after the wet material is compressed, moisture escapes from the wet material, passes through the first filter cloth in the mold frame and the water leakage hole on the boss into the drainage cavity, and then enters the drainage device through the horizontal drainage pipe; Step 3: Open the mold, the extrusion driving component drives the hot pressing top plate to move up, so that the hot pressing top plate and the other hot pressing plates except the bottom hot pressing plate all move up, and after the pressure on the mold frame is released, the pressure on the elastic support mechanism is also released, and the elastic support mechanism automatically moves up to push the mold frame out to the upper part of the boss; Step 4: After the mold opening is completed, each mold transmission mechanism is opened to horizontally move each mold frame that has completed hot pressing and dehydration from the hot pressing and dehydration device to above the lifting device; Step 5, the lifting device extends upward to push out the dry materials obtained by hot pressing and dehydration in each mold frame, and the pushing device pushes the dry materials, thereby causing the dry materials to fall onto the dry material conveying device; Step 6: The lifting device is retracted downward so as not to hinder the horizontal movement of the mold frame, and each mold transmission mechanism is opened to push each mold frame after demoulding to a side close to the hot pressing dehydration device, and then the feeding work in step 1 is performed, and this cycle is repeated.

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