A sludge microwave drying treatment device

Abstract

The present invention relates to the technical field of sludge treatment, and particularly to a sludge microwave drying treatment device, which includes a base with a drying chamber, a microwave generator, a conveying chain, a plurality of trays and an adjustment mechanism, wherein the microwave generator is inserted into the drying chamber and is used to emit microwaves; the conveying chain is arranged on the base, and a closed conveying loop is formed on the base, and the conveying loop passes through the drying chamber; a plurality of trays are arranged on the conveying chain; the trays are deformable and have a first state and a second state, when in the first state, the trays are U-shaped, and the open bottom of the trays is used to hold sludge, and when in the second state, the trays are inverted T-shaped, and the top of the horizontal section of the trays is used to hold sludge; the adjustment mechanism is configured to switch the state of the trays, thereby separating the upper and lower layers of sludge so that water vapor can escape and improve the drying efficiency, and exchanging the positions of the upper and lower layers of sludge to improve the drying uniformity.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, in particular to a sludge microwave drying treatment device. Background Art

[0002] Sludge is a by-product produced during sewage treatment. It is mainly composed of organic debris, bacterial cells, inorganic particles, colloids, etc. It is a heterogeneous body of solid-liquid mixture, usually in the form of colloidal flocs, and has significant dual attributes of "pollution" and "resource".

[0003] In order to reduce transportation costs, reduce environmental pollution risks and achieve resource recycling, sludge needs to be dried; when drying sludge, drying equipment is needed. In related technologies, Chinese patent CN204675978U discloses a sludge dryer, which includes a sludge conveyor belt, a sludge conveying drive mechanism and a microwave action cavity; in the sludge drying process, the sludge is first placed on the sludge conveyor belt, and then, under the drive of the sludge conveying drive mechanism, the sludge carried by the sludge conveyor belt is transported to the inside of the microwave action cavity, and the microwave action cavity emits microwaves, which penetrate the sludge through the microwave energy, so that the water molecules inside the sludge absorb the microwave energy and generate friction heat, thereby achieving the effect of rapid and uniform heating and drying.

[0004] However, there are some problems in the actual use of the above-mentioned sludge dryer: on the one hand, due to the energy attenuation characteristics of microwaves during propagation, the microwave energy near the edge of the cavity in the microwave action cavity is more significantly attenuated than that in the central area. This energy attenuation difference causes the sludge at the edge of the conveyor belt to absorb much less microwave energy than the middle part, resulting in uneven overall drying of the sludge, and the edge part may even be insufficiently dried, affecting the effect and quality of subsequent resource reuse; on the other hand, the sludge has a certain spreading thickness on the conveyor belt. Although microwaves can penetrate the sludge to achieve internal heating, when the upper layer of the sludge is dried first under the action of microwaves to form a relatively dense drying layer, the drying layer will form a physical barrier to the water vapor generated by the evaporation of the lower sludge, which will slow down the escape velocity of water vapor and affect the drying efficiency of the sludge. Summary of the Invention

[0005] Based on this, it is necessary to provide a sludge microwave drying treatment device to address the problems of uneven drying and low drying efficiency in the current sludge drying process.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A sludge microwave drying treatment device, the sludge microwave drying treatment device comprising:

[0008] a base having a drying chamber;

[0009] a microwave generator, inserted into the drying chamber and configured to emit microwaves;

[0010] a conveying chain, disposed on the base, and forming a closed conveying loop on the base, the conveying loop passing through the drying chamber;

[0011] a plurality of trays disposed on the conveyor chain and arranged along the extension direction of the conveyor chain; the trays are deformable and have a first state and a second state; in the first state, the trays are U-shaped, and the open bottom of the trays is configured to hold sludge; in the second state, the trays are in an inverted T-shaped structure, and the top of the horizontal section of the trays is configured to hold the sludge;

[0012] The adjustment mechanism is configured to switch the state of the tray.

[0013] Furthermore, the tray includes a drying film and multiple support frames, and the drying film is fixedly laid on the top of all the support frames; multiple support frames are arranged side by side, and each support frame includes a first support plate, a second support plate, the second support plate, and the first support plate which are hinged in sequence; the first support plates on the same side of different support frames are hinged together on a first hinge shaft; the first support plate and the second support plate are hinged together on a second hinge shaft; a retaining structure is provided on the top of the outermost support frame, and the retaining structure is configured to prevent the sludge from leaving the tray.

[0014] Furthermore, the adjustment mechanism includes a guide belt ring and two guide side plates, the plate surfaces of the two guide side plates are arranged in parallel, the two guide side plates are fixedly arranged inside the base, and are respectively located on both sides of the conveying chain, and a first annular groove is provided on the inner plate surface of each guide side plate; the shape of the guide belt ring is the same as the shape of the conveying chain, the guide belt ring is fixedly inserted inside the base, and is located on the inner side of the conveying chain and arranged parallel to the conveying chain, and two second annular grooves are symmetrically provided on the outer annular surface of the guide belt ring; a first sliding rod is hingedly provided on each first hinge shaft, the first sliding rod is arranged close to the frontmost support frame, and is slidably inserted in the first annular groove; a second sliding rod is hingedly provided on each second hinge shaft, the second sliding rod is arranged close to the frontmost support frame, and is slidably inserted in the second annular groove.

[0015] Furthermore, the tray also has a third state. When in the third state, the tray is a W-shaped structure; the sludge microwave drying treatment device also includes a cutting mechanism, which is configured to cut the sludge placed on the drying film corresponding to the first support plate into two halves when the tray is in the third state, and to guide the cut upper layer of the sludge to the drying film corresponding to the second support plate.

[0016] Furthermore, the cutting mechanism includes at least one pair of cutters, which are inserted into the drying chamber, and the cutting surface of the cutter is parallel to the surface of the first support plate when the tray is in the third state; each of the cutters is provided with a guide portion, which is a curved structure and bends toward the surface of the second support plate when the tray is in the third state.

[0017] Furthermore, a plurality of water-permeable holes are provided on the surface of the drying membrane, and the water-permeable holes are configured to allow water to pass through.

[0018] Furthermore, the drying membrane is made of ceramic fiber material.

[0019] Furthermore, an observation window is provided on the base, and the observation window is configured to be able to view the situation in the drying chamber.

[0020] Furthermore, the sludge microwave drying treatment device also includes a dehumidification system, which is configured to discharge water in the drying chamber.

[0021] Furthermore, the dehumidification system includes a dehumidification fan, the air intake of the dehumidification fan is connected to the drying chamber, and the air outlet of the dehumidification fan is connected to the external environment.

[0022] The beneficial effects of the present invention are:

[0023] The sludge microwave drying treatment device provided by the present invention is used as follows: first, the sludge is placed on the top of the tray, and then the tray is driven to move by the conveyor chain, and the microwave generator is started at the same time; when the tray enters the drying chamber, the microwaves emitted by the microwave generator pass through the sludge, causing the water molecules inside the sludge to absorb the microwave energy and generate friction heat, thereby turning into water vapor and separating from the sludge; as the tray moves, when the tray reaches a preset position, under the action of the adjustment mechanism, the tray changes from a U-shape to an inverted T-shape, and under the action of gravity and its own flow, the upper layer of sludge moves downward and outward along the surface of the tray, thereby separating the upper and lower layers of sludge, shortening the escape path of water vapor in the lower layer of sludge, which is beneficial to improving the drying efficiency, and exchanging the inner and outer positions of the upper and lower layers of sludge, so that the upper and lower layers of sludge reach a similar drying degree, thereby improving the drying uniformity.

[0024] Furthermore, by setting up a cutting mechanism, when the tray is in the third state, it is a W-shaped structure. At this time, under the action of the cutting mechanism, the sludge placed on the drying membrane corresponding to the first support plate can be cut into two halves, and the cut upper sludge can be guided to the drying membrane corresponding to the second support plate, so that the outer side of the lower sludge and the inner side of the upper sludge can be exposed, which is beneficial to improving the overall drying effect of the sludge.

[0025] Furthermore, by providing a plurality of water-permeable holes on the surface of the drying membrane, during the drying process, when water vapor appears in the lower layer of sludge, the water vapor can either pass upward through the upper layer of sludge to be detached, or pass downward through the water-permeable holes to be detached from the lower layer of sludge, thereby improving the escape efficiency of water vapor and improving the drying effect of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a sludge microwave drying treatment device provided in an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of a sludge microwave drying treatment device without the base provided in an embodiment of the present invention;

[0028] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0029] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure at point B in the middle;

[0030] Figure 5 A schematic diagram of the three-dimensional structure of a sludge microwave drying treatment device without the tray provided in an embodiment of the present invention;

[0031] Figure 6 for Figure 5 A schematic diagram of the partially enlarged structure at point C in the middle;

[0032] Figure 7 A schematic diagram of the three-dimensional structure of the guide belt ring and two guide side plates of the sludge microwave drying treatment device provided by an embodiment of the present invention when assembled;

[0033] Figure 8 A schematic diagram of the three-dimensional structure of a tray of a sludge microwave drying treatment device provided by an embodiment of the present invention when the tray is in a first state;

[0034] Figure 9 A schematic diagram of the three-dimensional structure of the tray of the sludge microwave drying treatment device provided by an embodiment of the present invention when it is in the second state;

[0035] Figure 10A schematic diagram of the three-dimensional structure of the tray of the sludge microwave drying treatment device provided by an embodiment of the present invention when it is in the third state;

[0036] Figure 11 A schematic diagram of the three-dimensional structure of a support frame of a tray of a sludge microwave drying treatment device provided by an embodiment of the present invention.

[0037] in:

[0038] 1. base; 101. drying chamber;

[0039] 2. Conveyor chain; 201. Mounting bar;

[0040] 3. Tray; 301. Drying film; 302. Support frame; 3021. First support plate; 3022. Second support plate; 303. Enclosure structure; 3031. First baffle; 3032. Second baffle; 3033. Third baffle; 3034. Fourth baffle;

[0041] 401, guide side plate; 4011, first annular groove; 40111, first base groove; 40112, first skewed groove; 40113, first straight groove; 40114, third skewed groove; 40115, third straight groove; 40116, fourth skewed groove; 40117, second straight groove; 402, guide belt ring; 4021, second annular groove; 40211, second base groove; 40212, fifth skewed groove; 40213, fourth straight groove; 40214, seventh skewed groove; 40215, sixth straight groove; 40216, eighth skewed groove; 40217, fifth straight groove; 403, first sliding rod; 404, second sliding rod;

[0042] 5. Cutting mechanism; 501. Cutter; 502. Guide; 503. Mounting seat. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0045] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0046] like Figures 1 to 11 As shown, a sludge microwave drying treatment device provided by an embodiment of the present invention is used for drying sludge, and is configured to include a base 1 having a drying chamber 101, a microwave generator, a conveying chain 2, a plurality of trays 3 and an adjustment mechanism, wherein the microwave generator is inserted into the drying chamber 101 and is configured to emit microwaves; the conveying chain 2 is arranged on the base 1, and a closed conveying loop is formed on the base 1, and the conveying loop passes through the drying chamber 101; a plurality of trays 3 are arranged on the conveying chain 2 and arranged along the extension direction of the conveying chain 2; the tray 3 is deformable and has a first state and a second state. When in the first state, the tray 3 is a U-shaped structure, and the open bottom of the tray 3 is configured to hold sludge. When in the second state, the tray 3 is an inverted T-shaped structure, and the top of the horizontal section of the tray 3 is configured to hold sludge; the adjustment mechanism is configured to switch the state of the tray 3.

[0047] Specifically in this embodiment, the microwave generator is installed at the top of the drying chamber 101 and is capable of emitting microwaves from top to bottom, ensuring that the microwaves are absorbed by the sludge as much as possible, thereby improving the sludge drying efficiency. Optionally, the microwave generator can be configured to emit high-frequency microwaves at a frequency of 2450 MHz. The conveyor chain 2 is a rounded rectangular shape, extending horizontally in the front-to-back direction and divided into two layers in the vertical direction, ensuring a closed conveying loop.

[0048] Furthermore, in order to facilitate the unified collection of the dried sludge, the sludge microwave drying treatment device is configured to further include a collecting bucket, which is located at the front end of the upper conveying chain 2.

[0049] Initially, the tray 3 is U-shaped.

[0050] During use, the sludge is first placed at the open bottom of the tray 3, and then the tray 3 is moved by the conveyor chain 2, and the microwave generator is started at the same time; when the tray 3 enters the drying chamber 101 along the conveyor chain 2, the microwaves emitted by the microwave generator penetrate the sludge from top to bottom, causing the water molecules in the sludge to vibrate violently and generate heat through friction under the action of the high-frequency electromagnetic field, and then quickly vaporize into water vapor and separate from the sludge, thereby achieving drying.

[0051] When the tray 3 moves to the first preset position, the adjustment mechanism gradually changes the shape of the tray 3 from a U-shape to an inverted T-shape. At this point, the sludge originally accumulated at the bottom of the opening of the tray 3 is first separated into two halves by gravity and its own viscous flow during the shape transformation process of the tray 3. The upper layer of sludge in each half then moves downward and outward along the surface of the tray 3, and then moves to the edge of the drying chamber 101. At this time, the lower layer of sludge is exposed and located in the middle of the drying chamber 101. This not only shortens the escape path of water vapor in the lower layer of sludge, thereby improving drying efficiency, but also allows the lower layer of sludge to directly receive stronger microwave energy, so that the upper and lower layers of sludge can reach a similar degree of drying, thereby improving drying uniformity.

[0052] As the tray 3 continues to move, when the tray 3 reaches the second preset position, the adjustment mechanism comes into play again, and the tray 3 gradually returns to a U shape from an inverted T shape; at this time, under the action of gravity and its own flow, the original upper layer of sludge moves inward and re-covers the original lower layer of sludge, and then gathers into one piece.

[0053] After the tray 3 leaves the drying chamber 101 , the dried sludge is collected uniformly by a collecting bucket.

[0054] In a further embodiment, the tray 3 is configured to include a drying film 301 and multiple support frames 302, and the drying film 301 is fixedly laid on the top of all the support frames 302; multiple support frames 302 are arranged side by side, and each support frame 302 includes a first support plate 3021, a second support plate 3022, a second support plate 3022, and a first support plate 3021 that are hinged in sequence; the first support plates 3021 of different support frames 302 on the same side are hinged together on the first hinge axis; the first support plate 3021 and the second support plate 3022 are hinged together on the second hinge axis; a retaining structure 303 is provided on the top of the outermost support frame 302, and the retaining structure 303 is configured to prevent sludge from leaving the tray 3.

[0055] Specifically, in this embodiment, both the first support plate 3021 and the second support plate 3022 are strip-shaped. The two second support plates 3022 of the same support frame 302 are connected by hinges during installation, ensuring an articulated fit. When the tray 3 is in the first position, the support frame 302 is U-shaped, ensuring it can support the drying film 301 in a U-shape. When the tray 3 is in the second position, the support frame 302 is in an inverted T-shape, ensuring it can support the drying film 301 in an inverted T-shape.

[0056] The enclosure structure 303 is configured to include a first baffle 3031, a second baffle 3032, a third baffle 3033 and a fourth baffle 3034, wherein the first baffle 3031 is a strip structure and is provided in two numbers. When installed, the first baffle 3031 is vertically and fixedly arranged on the end of the first support plate 3021 located on the same side of different support frames 302 away from the second support plate 3022; the second baffle 3032 is a strip structure and is provided in four numbers. When installed, the second baffle 3032 is parallel and fixedly arranged on the first support plate 3021 located on the outermost support frame 302; the third baffle 3033 is a strip structure and is provided in two numbers. The third baffle 3034 is parallel and fixedly arranged on the first support plate 3021 located on the outermost support frame 302; 033 is installed in parallel and fixedly on one of the second support plates 3022 of the outermost support frame 302; the fourth baffle 3034 is a strip structure, and there are two of them. The fourth baffle 3034 is installed in parallel and fixedly on the other second support plate 3022 of the outermost support frame 302; to avoid interference, the ends of the third baffle 3033 and the fourth baffle 3034 close to the first support plate 3021 are both step-shaped structures to ensure that during the switching of the tray 3, the second baffle 3032 is always located on the inner side of the third baffle 3033 or the fourth baffle 3034, ensuring that the enclosure structure 303 can always be enclosed into a closed structure.

[0057] In a further embodiment, the adjustment mechanism is configured to include a guide belt ring 402 and two guide side plates 401, the plate surfaces of the two guide side plates 401 are arranged in parallel, the two guide side plates 401 are fixedly arranged inside the base 1, and are respectively located on both sides of the conveyor chain 2, and a first annular groove 4011 is provided on the inner plate surface of each guide side plate 401; the shape of the guide belt ring 402 is the same as that of the conveyor chain 2, the guide belt ring 402 is fixedly inserted inside the base 1, and is located on the inner side of the conveyor chain 2 , and is arranged parallel to the conveyor chain 2, two second annular grooves 4021 are symmetrically arranged on the outer annular surface of the guide belt ring 402; a first sliding rod 403 is hingedly arranged on each first hinge shaft, and the first sliding rod 403 is arranged close to the frontmost support frame 302, and is slidably inserted in the first annular groove 4011; a second sliding rod 404 is hingedly arranged on each second hinge shaft, and the second sliding rod 404 is arranged close to the frontmost support frame 302, and is slidably inserted in the second annular groove 4021.

[0058] Specifically in this embodiment, the guide side plate 401 is in the shape of a rounded rectangle and a strip-shaped structure, and extends horizontally in the front-to-back direction. The plate surface of the guide side plate 401 is arranged in the up-down direction, and the outer edge of the guide side plate 401 is parallel to the conveyor chain 2; the two guide side plates 401 are arranged at intervals in the left-right direction. The first annular groove 4011 is configured to have a first base groove 40111, an equal number of and at least one first inclined groove 40112, a first straight groove 40113, a second inclined groove, and a second straight groove 40117, wherein the first base groove 40111 is a C-shaped structure and is part of the rounded rectangle. When opened, the first base groove 40111 opens upward and is parallel to the conveyor chain 2; the first inclined groove 40112 is located at the rear end of the first base groove 40111 and is connected to the first base groove 40111. The first inclined groove 40112 is tilted and extends in the front-down direction. ; The first straight groove 40113 is located at the front end of the first oblique groove 40112, and is connected to the first oblique groove 40112, and extends horizontally in the front-to-back direction. The first straight groove 40113 is arranged more inward than the rear end of the first base groove 40111; the second oblique groove is located at the front end of the first straight groove 40113, and is connected to the first straight groove 40113. The second oblique groove is inclined and extends in the front-up direction; the second straight groove 40117 is located at the front end of the second oblique groove, and is connected to the front ends of the second oblique groove and the first base groove 40111 at the same time, and extends horizontally in the front-to-back direction.

[0059] When the number of the first oblique groove 40112, the first straight groove 40113, the second oblique groove and the second straight groove 40117 is two or more, taking the example of the number of the first oblique groove 40112, the first straight groove 40113, the second oblique groove and the second straight groove 40117 being two, one of the first oblique groove 40112, the first straight groove 40113, the second oblique groove and the second straight groove 40117 is a first group, and the other first oblique groove 40112, the first straight groove 40113, the second oblique groove and the second straight groove 40117 is a second group, then the first oblique groove 40112 of the first group is located at the rear end of the first base groove 40111 and is connected to the first base groove 40111, the first oblique groove 40112 of the second group is located at the front end of the second straight groove 40117 of the first group and is connected to the second straight groove 40117 of the first group, and the second straight groove 40117 of the second group is connected to the front end of the first base groove 40111, to ensure that a complete guide loop is formed.

[0060] The guide belt ring 402 is in the shape of a rounded rectangle and a strip structure, extending horizontally in the front-to-back direction. The guide belt ring 402 is located between the two guide side plates 401. The second annular groove 4021 is configured to have a second base groove 40211, an equal number of at least one fifth inclined groove 40212, a fourth straight groove 40213, a sixth inclined groove, and a fifth straight groove 40217. Taking the second annular groove 4021 on the left side as an example, the second base groove 40211 is a C-shaped structure and is part of the rounded rectangle. When the second base groove 40211 is opened, the opening faces upward and is parallel to the conveyor chain 2; the fifth inclined groove 40212 is located at the rear end of the second base groove 40211 and is connected to the second base groove 40211. The fifth inclined groove 40212 is inclined The fourth straight groove 40213 is located at the front end of the fifth oblique groove 40212, and is connected to the fifth oblique groove 40212, and extends horizontally along the front-to-back direction. The fourth straight groove 40213 is arranged more inwardly than the rear end of the second base groove 40211; the sixth oblique groove is located at the front end of the fourth straight groove 40213, and is connected to the fourth straight groove 40213, and extends obliquely along the front-to-left direction; the fifth straight groove 40217 is located at the front end of the sixth oblique groove, and is connected to the front ends of the sixth oblique groove and the second base groove 40211 at the same time, and extends horizontally along the front-to-back direction.

[0061] When the number of the fifth oblique groove 40212, the fourth straight groove 40213, the sixth oblique groove and the fifth straight groove 40217 is set to two or more, taking the number of the fifth oblique groove 40212, the fourth straight groove 40213, the sixth oblique groove and the fifth straight groove 40217 as two as an example, one of the fifth oblique groove 40212, the fourth straight groove 40213, the sixth oblique groove and the fifth straight groove 40217 is a first group, and the other fifth oblique groove 40212, the fourth straight groove 40213, the sixth oblique groove and the fifth straight groove 40217 is a second group, then the fifth oblique groove 40212 of the first group is located at the rear end of the second base groove 40211 and is connected to the second base groove 40211, the fifth oblique groove 40212 of the second group is located at the front end of the fifth straight groove 40217 of the first group and is connected to the fifth straight groove 40217 of the first group, and the fifth straight groove 40217 of the second group is connected to the front end of the second base groove 40211, to ensure that a complete guide loop is formed.

[0062] In order to facilitate the connection between the conveyor chain 2 and the pallet 3, a plurality of mounting bars 201 are fixedly arranged on the conveyor chain 2. The mounting bars 201 extend horizontally in the left and right directions, and the plurality of mounting bars 201 are arranged at equal intervals along the extension direction of the conveyor chain 2; the mounting bar 201 is a U-shaped structure, and the opening is set outward, and the second sliding rod 404 is slidably inserted into the mounting bar 201 during installation.

[0063] In order to avoid a dead point, it is configured that when the tray 3 is in the first state, the two second support plates 3022 of the same support frame 302 form an inverted V-shaped structure.

[0064] During the movement of the conveyor chain 2, taking the example of a first skewed slot 40112, a first straight slot 40113, a second skewed slot, and a second straight slot 40117, and a fifth skewed slot 40212, a fourth straight slot 40213, a sixth skewed slot, and a fifth straight slot 40217 all being provided at one, the conveyor chain 2 synchronously drives the tray 3 via the mounting bar 201. After the tray 3 enters the drying chamber 101, the first sliding rod 403 first moves on the upper rear end of the first base groove 40111, and the second sliding rod 404 first moves on the upper rear end of the second base groove 40211, so that the tray 3 maintains a U-shaped shape and moves along with the conveyor chain 2.

[0065] When the first sliding rod 403 moves to the intersection of the first base groove 40111 and the first inclined groove 40112, the second sliding rod 404 moves to the intersection of the second base groove 40211 and the fifth inclined groove 40212; as the conveying chain 2 continues to move, the first sliding rod 403 moves from the first base groove 40111 to the first inclined groove 40112 and moves along the first inclined groove 40112, and the second sliding rod 404 moves from the second base groove 40211 to the fifth inclined groove 40212 and moves along the fifth inclined groove 40212. At this time, the first sliding rod 403 drives all the first support plates 3021 on the same side of the different support frames 302 to move downward through the first hinge axis, and the second sliding rod 404 moves inward along the mounting bar 201, so that the first support plate 3021 gradually switches from a vertical state to a horizontal state, and the second support plate 3022 gradually switches from a horizontal state to a vertical state, so that the tray 3 gradually changes from a U-shape to an inverted T-shape.

[0066] When the first sliding rod 403 moves to the intersection of the first inclined groove 40112 and the first straight groove 40113, the second sliding rod 404 moves to the intersection of the fifth inclined groove 40212 and the fourth straight groove 40213; as the conveyor chain 2 continues to move, the first sliding rod 403 moves from the first inclined groove 40112 to the first straight groove 40113 and moves along the first straight groove 40113, and the second sliding rod 404 moves from the fifth inclined groove 40212 to the fourth straight groove 40213 and moves along the fourth straight groove 40213, so that the pallet 3 maintains an inverted T shape and moves with the conveyor chain 2.

[0067] When the first sliding rod 403 moves to the intersection of the first straight groove 40113 and the second oblique groove, the second sliding rod 404 moves to the intersection of the fourth straight groove 40213 and the sixth oblique groove; as the conveying chain 2 continues to move, the first sliding rod 403 moves from the first straight groove 40113 to the second oblique groove and moves along the second oblique groove, and the second sliding rod 404 moves from the fourth straight groove 40213 to the sixth oblique groove and moves along the sixth oblique groove. At this time, the first sliding rod 403 drives all the first support plates 3021 located on the same side of the different support frames 302 to move upward through the first hinge axis, and the second sliding rod 404 moves outward along the mounting bar 201, so that the first support plate 3021 gradually switches from a horizontal state to a vertical state, and the second support plate 3022 gradually switches from a vertical state to a horizontal state, so that the tray 3 gradually changes from an inverted T shape to a U shape.

[0068] When the first sliding rod 403 moves to the intersection of the second inclined groove and the second straight groove 40117, the second sliding rod 404 moves to the intersection of the sixth inclined groove and the fifth straight groove 40217; as the conveyor chain 2 continues to move, the first sliding rod 403 moves from the second inclined groove to the second straight groove 40117 and moves along the second straight groove 40117, and the second sliding rod 404 moves from the sixth inclined groove to the fifth straight groove 40217 and moves along the fifth straight groove 40217, so that the pallet 3 maintains a U-shape and moves with the conveyor chain 2.

[0069] When the first sliding rod 403 moves to the junction of the second straight groove 40117 and the first base groove 40111, the second sliding rod 404 moves to the junction of the fifth straight groove 40217 and the second base groove 40211; as the conveyor chain 2 continues to move, the first sliding rod 403 moves from the second straight groove 40117 to the first base groove 40111 and moves along the first base groove 40111, and the second sliding rod 404 moves from the fifth straight groove 40217 to the second base groove 40211 and moves along the second base groove 40211, so that the pallet 3 maintains a U-shape and moves with the conveyor chain 2.

[0070] In other embodiments, the tray 3 is configured to have a third state. When in the third state, the tray 3 is a W-shaped structure. The sludge microwave drying treatment device also includes a cutting mechanism 5. The cutting mechanism 5 is configured to cut the sludge placed on the drying film 301 corresponding to the first support plate 3021 into two halves when the tray 3 is in the third state, and to guide the cut upper sludge to the drying film 301 corresponding to the second support plate 3022.

[0071] Specifically in this embodiment, the first annular groove 4011 is configured to include a first base groove 40111, an equal number of and at least one first oblique groove 40112, a first straight groove 40113, a third oblique groove 40114, a third straight groove 40115, a fourth oblique groove 40116, and a second straight groove 40117, wherein the third oblique groove 40114 is located at the front end of the first straight groove 40113 and is connected to the first straight groove 40113. The third oblique groove 40114 is inclined and extends in the front-up direction; The third straight groove 40115 is located at the front end of the third oblique groove 40114, is connected to the third oblique groove 40114, and extends horizontally in the front-to-back direction. The third straight groove 40115 is arranged more inward than the rear end of the first base groove 40111 and more outward than the first straight groove 40113; the fourth oblique groove 40116 is located at the front end of the third straight groove 40115, and is connected to the third straight groove 40115 and the second straight groove 40117 at the same time. The third oblique groove 40114 is inclined and extends in the front-up direction.

[0072] When the number of the first oblique slot 40112, the first straight slot 40113, the third oblique slot 40114, the third straight slot 40115, the fourth oblique slot 40116 and the second straight slot 40117 is set to two or more, taking the number of the first oblique slot 40112, the first straight slot 40113, the third oblique slot 40114, the third straight slot 40115, the fourth oblique slot 40116 and the second straight slot 40117 as an example, one of the first oblique slot 40112, the first straight slot 40113, the third oblique slot 40114, the third straight slot 40115, the fourth oblique slot 40116 and the second straight slot 40117 is set to two or more, The first group includes another first inclined groove 40112, a first straight groove 40113, a third inclined groove 40114, a third straight groove 40115, a fourth inclined groove 40116 and a second straight groove 40117. The first inclined groove 40112 of the first group is located at the rear end of the first base groove 40111 and is connected to the first base groove 40111. The first inclined groove 40112 of the second group is located at the front end of the second straight groove 40117 of the first group and is connected to the second straight groove 40117 of the first group. The second straight groove 40117 of the second group is connected to the front end of the first base groove 40111 to ensure that a complete guide loop is formed.

[0073] The second annular groove 4021 is configured to include a second base groove 40211, an equal number of and at least one fifth oblique groove 40212, a fourth straight groove 40213, a seventh oblique groove 40214, a sixth straight groove 40215, an eighth oblique groove 40216, and a fifth straight groove 40217, wherein the seventh oblique groove 40214 is located at the front end of the fourth straight groove 40213, is connected to the fourth straight groove 40213, and extends in the front-left direction; the sixth straight groove 40215 is located at the front end of the seventh oblique groove 40214, is connected to the seventh oblique groove 40214, and extends horizontally in the front-to-back direction, the sixth straight groove 40215 is arranged more inward than the rear end of the second base groove 40211, and more outward than the fourth straight groove 40213; the eighth oblique groove 40216 is located at the front end of the sixth straight groove 40215, is connected to the sixth straight groove 40215 and the fifth straight groove 40217, and extends in the front-left direction.

[0074] When the number of the fifth chute 40212, the fourth straight chute 40213, the seventh chute 40214, the sixth straight chute 40215, the eighth chute 40216 and the fifth straight chute 40217 is set to two or more, taking the number of the fifth chute 40212, the fourth straight chute 40213, the seventh chute 40214, the sixth straight chute 40215, the eighth chute 40216 and the fifth straight chute 40217 as an example, one of the fifth chute 40212, the fourth straight chute 40213, the seventh chute 40214, the sixth straight chute 40215, the eighth chute 40216 and the fifth straight chute 40217 is The first group, another fifth inclined groove 40212, the fourth straight groove 40213, the seventh inclined groove 40214, the sixth straight groove 40215, the eighth inclined groove 40216 and the fifth straight groove 40217 are the second group, then the fifth inclined groove 40212 of the first group is located at the rear end of the second base groove 40211 and is connected to the second base groove 40211, the fifth inclined groove 40212 of the second group is located at the front end of the fifth straight groove 40217 of the first group and is connected to the fifth straight groove 40217 of the first group, and the fifth straight groove 40217 of the second group is connected to the front end of the second base groove 40211, ensuring that a complete guide loop is formed.

[0075] During the movement of the conveyor chain 2, taking the number of the first inclined groove 40112, the first straight groove 40113, the third inclined groove 40114, the third straight groove 40115, the fourth inclined groove 40116 and the second straight groove 40117, and the number of the fifth inclined groove 40212, the fourth straight groove 40213, the seventh inclined groove 40214, the sixth straight groove 40215, the eighth inclined groove 40216 and the fifth straight groove 40217 as an example, the conveyor chain 2 synchronously drives the pallet 3 to move through the mounting bar 201.

[0076] When the first sliding rod 403 moves to the intersection of the first straight groove 40113 and the third oblique groove 40114, the second sliding rod 404 moves synchronously to the intersection of the fourth straight groove 40213 and the seventh oblique groove 40214; as the conveying chain 2 continues to move, the first sliding rod 403 moves from the first straight groove 40113 to the third oblique groove 40114 and moves along the third oblique groove 40114, and the second sliding rod 404 moves from the fourth straight groove 40213 to the seventh oblique groove 40214 and moves along the seventh oblique groove 40214. At this time, the first sliding rod 403 drives all the first support plates 3021 on the same side of the different support frames 302 to move upward through the first hinge axis, and the second sliding rod 404 moves outward along the mounting bar 201, so that the first support plate 3021 gradually switches from a horizontal state to an inclined state, and the second support plate 3022 gradually switches from a vertical state to an inclined state, so that the tray 3 gradually changes from an inverted T shape to a W shape.

[0077] When the first sliding rod 403 moves to the junction of the third inclined groove 40114 and the third straight groove 40115, the second sliding rod 404 moves synchronously to the junction of the seventh inclined groove 40214 and the sixth straight groove 40215; as the conveyor chain 2 continues to move, the first sliding rod 403 moves from the third inclined groove 40114 to the third straight groove 40115 and moves along the third straight groove 40115, and the second sliding rod 404 moves from the seventh inclined groove 40214 to the sixth straight groove 40215 and moves along the sixth straight groove 40215, so that the pallet 3 maintains a W-shape and moves with the conveyor chain 2. At this time, under the action of the cutting mechanism 5, the sludge placed on the drying film 301 corresponding to the first support plate 3021 can be cut into two halves, and the cut upper sludge can be guided to the drying film 301 corresponding to the second support plate 3022, so that the outer side of the lower sludge and the inner side of the upper sludge can be exposed, which is beneficial to improving the overall drying effect of the sludge.

[0078] When the first sliding rod 403 moves to the intersection of the third straight groove 40115 and the fourth inclined groove 40116, the second sliding rod 404 moves to the intersection of the sixth straight groove 40215 and the eighth inclined groove 40216; as the conveying chain 2 continues to move, the first sliding rod 403 moves from the third straight groove 40115 to the fourth inclined groove 40116 and moves along the fourth inclined groove 40116, and the second sliding rod 404 moves from the sixth straight groove 40215 to the eighth inclined groove 40216 and moves along the eighth inclined groove 40216, so that the first support plate 3021 gradually switches from an inclined state to a vertical state, and the second support plate 3022 gradually switches from an inclined state to a horizontal state, so that the tray 3 gradually changes from a W shape to a U shape.

[0079] When the first sliding rod 403 moves to the junction of the fourth inclined groove 40116 and the second straight groove 40117, the second sliding rod 404 moves to the junction of the eighth inclined groove 40216 and the fifth straight groove 40217; as the conveying chain 2 continues to move, the first sliding rod 403 moves from the fourth inclined groove 40116 to the second straight groove 40117 and moves along the second straight groove 40117, and the second sliding rod 404 moves from the eighth inclined groove 40216 to the fifth straight groove 40217 and moves along the fifth straight groove 40217, so that the pallet 3 maintains a U-shape and moves with the conveying chain 2.

[0080] When the first sliding rod 403 moves to the junction of the second straight groove 40117 and the first base groove 40111, the second sliding rod 404 moves to the junction of the fifth straight groove 40217 and the second base groove 40211; as the conveyor chain 2 continues to move, the first sliding rod 403 moves from the second straight groove 40117 to the first base groove 40111 and moves along the first base groove 40111, and the second sliding rod 404 moves from the fifth straight groove 40217 to the second base groove 40211 and moves along the second base groove 40211, so that the pallet 3 maintains a U-shape and moves with the conveyor chain 2.

[0081] In a further embodiment, the cutting mechanism 5 is configured to include at least one pair of cutters 501, the cutters 501 are inserted into the drying chamber 101, and the cutting surface of the cutters 501 is parallel to the plate surface of the first support plate 3021 when the tray 3 is in the third state; each cutter 501 is provided with a guide portion 502, the guide portion 502 is a curved structure, and is bent toward the plate surface of the second support plate 3022 when the tray 3 is in the third state.

[0082] Specifically in this embodiment, to facilitate the installation of the cutter 501, the cutting mechanism 5 is configured to further include a mounting seat 503. The mounting seat 503 is a cross-shaped structure and has a first part and a second part of unequal lengths, wherein the first part is longer and extends obliquely along the front right direction, and the second part is shorter and extends obliquely along the front left direction. The cutter 501 is arranged at the bottom of the first part when installed and is arranged parallel to the second part; the guide portion 502 is a sheet-like structure, and when installed, the top end coincides with the first part and the rear end coincides with the cutter 501, ensuring that a curved surface structure can be formed, which is convenient for guiding the cut upper layer of sludge to the drying film 301 corresponding to the second support plate 3022; the position of the mounting seat 503 corresponds to the position of the third straight groove 40115, so that the position of the cutter 501 corresponds to the position of the third straight groove 40115, ensuring that when the tray 3 is in the third state, the sludge contained on the drying film 301 corresponding to the first support plate 3021 can be cut.

[0083] In other embodiments, in conventional drying methods, water vapor generated by the lower sludge layer can only escape upward through the pores of the upper sludge layer. Due to factors such as the sludge porosity and bulk density, this escape resistance is relatively high. To improve this situation, a plurality of water-permeable holes are provided on the surface of the drying membrane 301, and the water-permeable holes are configured to allow water to pass through. Thus, when water vapor is generated by the lower sludge layer, some of the water vapor can escape from the sludge through the water-permeable holes due to the pressure differential. The low-resistance channels formed by the water-permeable holes significantly reduce the energy loss of water vapor escape. According to the principles of fluid mechanics, this effectively reduces the longitudinal and local resistance of water vapor during migration. Furthermore, the presence of the water-permeable holes also eliminates the high humidity environment formed by water accumulation at the bottom of the sludge during conventional drying processes. In actual operation, some water vapor cools during its downward migration and recondenses into liquid water. The water-permeable holes can promptly discharge this liquid water, preventing it from forming a water layer on the surface of the drying membrane 301, thereby improving the sludge drying effect.

[0084] In a further embodiment, when the tray 3 has a first state, a second state and a third state, in the process of switching the tray 3 from the second state to the third state, that is, when the tray 3 switches from an inverted T shape to a W shape, since the interval between the two second support plates 3022 of the tray 3 increases from small to large, the space between the two second support plates 3022 will increase and the pressure will decrease, thereby forming a pressure difference on both sides of the second support plates 3022. Under the action of the pressure difference, the water in the sludge can more easily pass through the water permeable holes, thereby achieving auxiliary drainage, which is beneficial to improving the sludge drying effect.

[0085] In other embodiments, the drying film 301 is made of ceramic fiber material.

[0086] Specifically in this embodiment, ceramic fiber is an inorganic fiber material with aluminum oxide, silicon oxide, etc. as the main components. Its unique microstructure and physical and chemical properties give it significant advantages in sludge drying scenarios.

[0087] From a thermal performance perspective, ceramic fiber has an extremely low thermal conductivity (approximately 0.03 to 0.04 W / (m·K) at room temperature), effectively reducing heat loss during the drying process compared to traditional metal or polymer drying membranes 301. During microwave drying, heat is primarily generated by water molecules within the sludge absorbing microwave energy. Ceramic fiber drying membranes 301 prevent excessive heat transfer to the external environment, concentrating microwave energy on the sludge and improving energy efficiency. Furthermore, ceramic fiber exhibits excellent high-temperature resistance and can operate stably and long-term in environments exceeding 1000°C. This allows it to withstand the localized high temperatures that may occur during microwave drying, ensuring the structural integrity and service life of the drying membrane 301 in complex thermal environments.

[0088] In terms of chemical stability, ceramic fibers offer excellent corrosion resistance, resisting erosion by acidic and alkaline substances and microbial metabolites that may be present in sludge. Sludge is complex and contains a variety of chemical substances. Ordinary materials such as the Drying Membrane 301 are susceptible to corrosion and aging during long-term contact, impacting the normal operation of the equipment. However, the ceramic fiber Drying Membrane 301, with its stable chemical properties, effectively reduces maintenance frequency and replacement costs, improving equipment reliability.

[0089] Furthermore, ceramic fiber is lightweight and flexible, with a density only 1 / 5 to 1 / 10 that of traditional metal drying membranes 301. This significantly reduces the load on the conveyor chain 2 and reduces drive energy consumption. Furthermore, this excellent flexibility allows the drying membrane 301 to adapt to the complex motion of the conveyor chain 2, making it less susceptible to deformation and breakage during bends and turns. This ensures smooth sludge transport across the drying membrane 301, providing a strong foundation for efficient and continuous sludge drying.

[0090] In other embodiments, an observation window is provided on the base 1 , and the observation window is configured to be able to view the situation inside the drying chamber 101 .

[0091] Specifically, in this embodiment, during the sludge drying process, operators need to monitor the drying status, material distribution, and equipment operation status of the sludge within the chamber in real time. The observation window, by creating a transparent visual channel, allows operators to directly observe changes in the morphology of the sludge, the effects of the microwaves, and any abnormalities such as material accumulation and equipment failures, without having to open the drying chamber 101. This effectively avoids the risk of heat loss and microwave leakage caused by frequent opening of the drying chamber 101, reduces operational errors caused by information loss, and significantly improves the safety and reliability of equipment operation.

[0092] In other embodiments, in order to facilitate timely discharge of water vapor in the drying chamber 101 , the sludge microwave drying treatment device further includes a dehumidification system, and the dehumidification system is configured to discharge water vapor in the drying chamber 101 .

[0093] Specifically in this embodiment, the setting of the dehumidification system can not only effectively avoid problems such as enhanced microwave reflection and condensation corrosion on the equipment surface caused by the accumulation of water vapor in the drying chamber 101, but also reduce the relative humidity in the drying chamber 101, accelerate the evaporation of water on the sludge surface, and synergistically improve the sludge drying efficiency and equipment operating life, providing reliable technical guarantees for the resource utilization of sludge.

[0094] In a further embodiment, the dehumidification system is configured to include a dehumidification fan, the exhaust port of the dehumidification fan is connected to the drying chamber 101, and the exhaust port of the dehumidification fan is connected to the external environment.

[0095] Specifically in this embodiment, the dehumidification fan serves as the power source, and its exhaust port is connected to the high-humidity area at the top or side of the drying chamber 101 via a duct, ensuring that water vapor with higher temperatures and saturated humidity is preferentially extracted. The exhaust port extends to the outdoor environment through a dedicated duct, forming a complete dehumidification path. According to fluid dynamics theory, the dehumidification fan generates negative pressure through the rotation of the impeller, forming an air pressure difference between the drying chamber 101 and the outside world. This forces the water vapor in the drying chamber 101 to be rapidly discharged along the path from the exhaust port to the dehumidification fan to the exhaust port, driven by the pressure gradient.

[0096] In other embodiments, in order to improve the drying quality of the sludge, a plurality of microwave generators may be provided, and the plurality of microwave generators may be arranged at intervals along the front-to-back direction.

[0097] For example, the number of microwave generators may be five, and the five microwave generators are arranged at equal intervals along the front-to-back direction.

[0098] In other embodiments, in order to facilitate the provision of driving force for the movement of the conveyor chain 2, the sludge microwave drying treatment device is configured to also include a first driving mechanism, and the first driving mechanism is configured to include a first driving motor and two first rotating shafts. The two first rotating shafts are spaced apart and arranged side by side in the front-to-back direction. The axis of the first rotating shaft extends horizontally in the left-right direction, and is inserted on the base 1 and can rotate around its own axis. A first sprocket is fixedly mounted on each first rotating shaft, and the first sprocket and the conveyor chain 2 form a transmission fit; the first driving motor is arranged on the base 1, and is coaxially and fixedly connected to one of the first rotating shafts through a coupling to ensure that it can drive the conveyor chain 2 to move.

[0099] In other embodiments, in order to improve the stability of the movement of the tray 3, a plurality of conveyor chains 2 can be provided, and the plurality of conveyor chains 2 are arranged at intervals along the left-right direction.

[0100] Exemplarily, there may be two conveyor chains 2 , which are spaced apart in the left-right direction.

[0101] In a further embodiment, in order to facilitate the provision of driving force for the movement of the conveyor chain 2, the sludge microwave drying treatment device is configured to also include a second driving mechanism, and the second driving mechanism is configured to include a second driving motor and two second rotating shafts. The two second rotating shafts are spaced apart and arranged side by side in the front-to-back direction. The axis of the second rotating shaft extends horizontally in the left-right direction, and is inserted on the base 1 and can rotate around its own axis. A second sprocket is fixedly connected at both ends of each second rotating shaft, and the two second sprockets on the same second rotating shaft form a transmission fit with the two conveyor chains 2 respectively; the second driving motor is arranged on the base 1, and is coaxially and fixedly connected to one of the second rotating shafts through a coupling to ensure that it can drive the conveyor chain 2 to move.

[0102] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0103] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and modifications are possible without departing from the scope of the present invention, and such variations and modifications are fully within the scope of protection of the present invention.

Claims

1. A sludge microwave drying treatment device, characterized in that: include: a base having a drying chamber; A microwave generator is inserted into the drying chamber and configured to emit microwaves; A conveying chain is arranged on a base, and a closed conveying loop is formed on the base, and the conveying loop passes through the drying chamber; Multiple trays are arranged on the conveyor chain and arranged along the extension direction of the conveyor chain; the trays can be deformed and have a first state and a second state. When in the first state, the tray is a U-shaped structure, and the open bottom of the tray is configured to hold sludge. When in the second state, the tray is an inverted T-shaped structure, and the top of the horizontal section of the tray is configured to hold sludge; the tray includes a drying film and multiple support frames, and the drying film is fixedly laid on the top of all the support frames; multiple support frames are arranged side by side, and each support frame includes a first support plate, a second support plate, a second support plate, and a first support plate that are hinged in sequence; the first support plates of different support frames on the same side are jointly hinged on the first hinge shaft; the first support plate and the second support plate are jointly hinged on the second hinge shaft; the top of the outermost support frame is provided with a barrier structure that can prevent sludge from escaping from the tray; The adjusting mechanism is configured to be able to switch the state of the pallet; the adjusting mechanism includes a guide belt ring and two guide side plates, the plate surfaces of the two guide side plates are arranged in parallel, the two guide side plates are fixedly arranged inside the base, and are respectively located on both sides of the conveyor chain, and a first ring groove is provided on the inner plate surface of each guide side plate; the shape of the guide belt ring is the same as that of the conveyor chain, the guide belt ring is fixedly inserted inside the base, and is located on the inner side of the conveyor chain and is arranged parallel to the conveyor chain, and two second ring grooves are symmetrically provided on the outer ring surface of the guide belt ring; a first sliding rod is hingedly provided on each first hinge shaft, and the first sliding rod is close to the front side A supporting frame is provided and is slidably inserted in the first annular groove; a second sliding rod is hingedly provided on each second hinge shaft, the second sliding rod is provided close to the frontmost supporting frame, and is slidably inserted in the second annular groove; when the tray moves to the first preset position, the tray gradually changes from a U-shape to an inverted T-shape, so that the upper layer of sludge originally accumulated at the bottom of the tray opening moves downward and outward along the surface of the tray, and then moves to the edge position of the drying chamber. When the tray reaches the second preset position, the tray gradually returns from an inverted T-shape to a U-shape, and the original upper layer of sludge moves inward and re-covers the original lower layer of sludge, and then gathers into one piece.

2. The sludge microwave drying treatment device according to claim 1, characterized in that: The tray also has a third state. When in the third state, the tray is a W-shaped structure; the sludge microwave drying treatment device also includes a cutting mechanism, which is configured to cut the sludge placed on the drying membrane corresponding to the first support plate into two halves when the tray is in the third state, and to guide the cut upper sludge to the drying membrane corresponding to the second support plate.

3. The sludge microwave drying treatment device according to claim 2, characterized in that: The cutting mechanism includes at least one pair of cutters, which are inserted into the drying chamber, and the cutting surface of the cutter is parallel to the surface of the first support plate when the tray is in the third state; each cutter is provided with a guide portion, which is a curved structure and bends toward the surface of the second support plate when the tray is in the third state.

4. The sludge microwave drying treatment device according to claim 1, characterized in that: The surface of the drying film is provided with a plurality of water-permeable holes, and the water-permeable holes are configured to be able to pass water.

5. The sludge microwave drying treatment device according to claim 1, characterized in that: The drying membrane is made of ceramic fiber.

6. The sludge microwave drying treatment device according to claim 1, characterized in that: An observation window is provided on the base, and the observation window is configured to be able to view the situation in the drying chamber.

7. The sludge microwave drying treatment device according to claim 1, characterized in that: The sludge microwave drying treatment device further includes a dehumidification system configured to discharge water in the drying chamber.

8. The sludge microwave drying treatment device according to claim 7, characterized in that: The dehumidification system includes a dehumidification fan, an air intake of the dehumidification fan is connected to the drying chamber, and an air outlet of the dehumidification fan is connected to the external environment.

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