Sludge microwave drying treatment device

Abstract

The invention relates to the technical field of sludge treatment, in particular to a sludge microwave drying treatment device which comprises a base with a drying cavity, a microwave generator, a conveying chain, a plurality of trays and an adjusting mechanism, and the microwave generator is inserted into the drying cavity and used for emitting microwaves; the conveying chain is arranged on the base, a closed conveying loop is formed on the base, and the conveying loop penetrates through the drying chamber; the plurality of trays are arranged on the conveying chain; the tray can deform and has a first state and a second state, in the first state, the tray is of a U-shaped structure, the bottom of an opening of the tray is used for containing sludge, in the second state, the tray is of an inverted-T-shaped structure, and the top of a horizontal section of the tray is used for containing sludge; the adjusting mechanism is configured to be capable of switching the state of the tray, so that the upper and lower layers of sludge can be separated, water vapor can escape, the drying efficiency is improved, the positions of the upper and lower layers of sludge can be exchanged, and the drying uniformity is improved.

Description

Technical Field

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

[0002] Sludge is a by-product generated in the sewage treatment process, mainly composed of organic fragments, bacterial cells, inorganic particles, colloids, etc. It is a heterogeneous solid-liquid mixture, usually in the form of a colloidal floc, with significant dual attributes of "pollution" and "resource".

[0003] To reduce transportation costs, reduce environmental pollution risks and achieve resource reuse, it is necessary to dry the sludge; when drying the sludge, drying equipment is required. In related technologies, for example, Chinese Patent CN204675978U discloses a sludge dryer, which includes a sludge conveyor belt, a sludge conveying drive mechanism and a microwave action cavity; during the sludge drying process, first place the sludge on the sludge conveyor belt, and then under the drive of the sludge conveying drive mechanism, transport the sludge carried by the sludge conveyor belt into the microwave action cavity. The microwave action cavity emits microwaves, and the microwave energy penetrates the sludge, causing the water molecules inside the sludge to absorb the microwave energy and generate frictional heat, thereby achieving the effect of rapid and uniform heating and drying.

[0004] However, the above-mentioned sludge dryer also has some problems in actual use: on the one hand, due to the energy attenuation characteristics of microwaves during propagation, in the microwave action cavity, the microwave energy in the area near the cavity edge decays more significantly than that in the central area. This energy attenuation difference causes the sludge located 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 even insufficient drying may occur in the edge part, affecting the effect and quality of subsequent resource reuse; on the other hand, there is a certain paving thickness of the sludge on the conveyor belt. Although microwaves can penetrate the sludge to achieve internal heating, when the upper layer of the sludge is first dried to form a relatively dense drying layer under the action of microwaves, this drying layer will form a physical barrier to the water vapor evaporated from the lower layer of the sludge, resulting in a slowdown in the escape speed of the water vapor and affecting 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 existing in the current sludge drying process.

[0006] The above object is achieved by the following technical solutions: A sludge microwave drying treatment device, the sludge microwave drying treatment device includes: A base having a drying chamber; A microwave generator, which is inserted into the drying chamber and configured to emit microwaves; A conveying chain, which is arranged on the base and forms a closed conveying loop on the base, and the conveying loop passes through the drying chamber; A plurality of trays, which are arranged on the conveying chain and arranged along the extending direction of the conveying chain; the trays can be deformed and have a first state and a second state. When in the first state, the tray is in a U-shaped structure, and the open bottom of the tray is configured to hold sludge. When in the second state, the tray is in an inverted T-shaped structure, and the top of the horizontal section of the tray is configured to hold the sludge; An adjusting mechanism, which is configured to switch the state of the tray.

[0007] Further, the tray includes a drying film and a plurality of support skeletons, and the drying film is fixedly laid on the tops of all the support skeletons; the plurality of support skeletons are arranged side by side, and each support skeleton includes a first support plate, a second support plate, the second support plate, and the first support plate that are sequentially hinged; the first support plates on the same side of different support skeletons are jointly hinged on a first hinge shaft; the first support plate and the second support plate are jointly hinged on a second hinge shaft; a retaining structure is arranged on the top of the outermost support skeleton, and the retaining structure is configured to prevent the sludge from detaching from the tray.

[0008] Further, the adjusting mechanism includes a guiding belt loop and two guiding side plates. The plate surfaces of the two guiding side plates are arranged in parallel. The two guiding side plates are fixedly arranged inside the base and are respectively located on both sides of the conveying chain. A first ring groove is arranged on the inner plate surface of each guiding side plate; the shape of the guiding belt loop is the same as that of the conveying chain. The guiding belt loop is fixedly inserted into the base and is located inside the conveying chain and arranged parallel to the conveying chain. Two second ring grooves are symmetrically arranged on the outer ring surface of the guiding belt loop; a first sliding rod is hinged on each first hinge shaft. The first sliding rod is arranged close to the frontmost support skeleton and is slidably inserted into the first ring groove; a second sliding rod is hinged on each second hinge shaft. The second sliding rod is arranged close to the frontmost support skeleton and is slidably inserted into the second ring groove.

[0009] Further, the tray further has a third state. When in the third state, the tray is in a W-shaped structure. The sludge microwave drying device further includes a cutting mechanism 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 upper layer of the cut sludge onto the drying film corresponding to the second support plate.

[0010] Further, the cutting mechanism includes at least a pair of cutting knives inserted into the drying chamber, and the cutting surface of the cutting knife is parallel to the plate surface of the first support plate when the tray is in the third state. Each cutting knife is provided with a guiding portion, and the guiding portion is a curved surface structure and bends towards the plate surface of the second support plate when the tray is in the third state.

[0011] Further, a plurality of water permeable holes are provided on the surface of the drying film, and the water permeable holes are configured to allow water to pass through.

[0012] Further, the drying film is made of ceramic fiber material.

[0013] Further, an observation window is provided on the base, and the observation window is configured to be able to view the situation inside the drying chamber.

[0014] Further, the sludge microwave drying device further includes a moisture exhaust system configured to exhaust the water inside the drying chamber.

[0015] Further, the moisture exhaust system includes a moisture exhaust fan. The suction port of the moisture exhaust fan is communicated with the drying chamber, and the exhaust port of the moisture exhaust fan is communicated with the external environment.

[0016] The beneficial effects of the present invention are as follows: During the use of the sludge microwave drying device provided by the present invention, first, the sludge is placed on the top of the tray, and then the tray is driven to move by the conveying chain while the microwave generator is started. When the tray enters the drying chamber, the microwave emitted by the microwave generator passes through the sludge, causing the water molecules inside the sludge to absorb the microwave energy and generate frictional heat, thereby turning into water vapor and separating from the sludge. As the tray moves, when the tray reaches the preset position, under the action of the adjusting mechanism, the tray changes from a U-shaped to an inverted T-shaped. Under the action of gravity and its own flow, the upper layer of the sludge moves downward and outward along the surface of the tray, so that the upper and lower layers of the sludge can be separated, which can shorten the escape path of the water vapor in the lower layer of the sludge, is conducive to improving the drying efficiency, and can also swap the internal and external positions of the upper and lower layers of the sludge, so that the upper and lower layers of the sludge reach an approximate drying degree and improve the drying uniformity.

[0017] Further, by providing a cutting mechanism, when the tray is in the third state and has a W-shaped structure, the sludge contained on the drying film corresponding to the first support plate can be cut in half under the action of the cutting mechanism, and the upper-layer sludge after cutting can be guided to the drying film corresponding to the second support plate, so that the outer side of the lower-layer sludge and the inner side of the upper-layer sludge are both exposed, which is conducive to improving the overall drying effect of the sludge.

[0018] Further, by providing a plurality of water-permeable holes on the surface of the drying film, during the drying process, when water vapor appears in the lower-layer sludge, the water vapor can either pass upward through the upper-layer sludge to escape or pass downward through the water-permeable holes to escape from the lower-layer sludge, which is conducive to improving the escape efficiency of the water vapor and the drying effect of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic perspective view of the sludge microwave drying treatment device provided by an embodiment of the present invention; Figure 2 Schematic perspective view of the sludge microwave drying treatment device without the base provided by an embodiment of the present invention; Figure 3 is Figure 2 Partial enlarged structural view at A in Figure 4 is Figure 3 Partial enlarged structural view at B in Figure 5 Schematic perspective view of the sludge microwave drying treatment device without the tray provided by an embodiment of the present invention; Figure 6 is Figure 5 Partial enlarged structural view at C in Figure 7 Schematic perspective view of the guiding belt loop and two guiding side plates of the sludge microwave drying treatment device provided by an embodiment of the present invention during assembly; Figure 8 Schematic perspective view of the tray of the sludge microwave drying treatment device provided by an embodiment of the present invention in the first state; Figure 9 Schematic perspective view of the tray of the sludge microwave drying treatment device provided by an embodiment of the present invention in the second state; Figure 10 Schematic perspective view of the tray of the sludge microwave drying treatment device provided by an embodiment of the present invention in the third state; Figure 11 Schematic perspective view of the support skeleton of the tray of the sludge microwave drying treatment device provided by an embodiment of the present invention.

[0020] Wherein: 1. Base; 101. Drying chamber; 2. Conveyor chain; 201. Mounting strip; 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; 401. Guide side plate; 4011. First annular groove; 40111. First base groove; 40112. First inclined groove; 40113. First straight groove; 40114. Third inclined groove; 40115. Third straight groove; 40116. Fourth inclined groove; 40117. Second straight groove; 402. Guide belt ring; 4021. Second annular groove; 40211. Second base groove; 40212. Fifth inclined groove; 40213. Fourth straight groove; 40214. Seventh inclined groove; 40215. Sixth straight groove; 40216. Eighth inclined groove; 40217. Fifth straight groove; 403. First sliding rod; 404. Second sliding rod; 5. Cutting mechanism; 501. Cutter; 502. Guide part; 503. Mounting seat. Detailed implementation manners

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, 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 used to limit the present invention.

[0022] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And the so-called "connection" and "coupling" herein, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0023] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0024] As Figures 1 to 11 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 adjusting mechanism. The microwave generator is inserted into the drying chamber 101 and is configured to be able to emit microwaves. The conveying chain 2 is arranged on the base 1 and forms a closed conveying loop on the base 1, and the conveying loop passes through the drying chamber 101. The plurality of trays 3 are arranged on the conveying chain 2 and are arranged along the extending direction of the conveying chain 2. The tray 3 can be deformed and has a first state and a second state. When in the first state, the tray 3 is in a U-shaped structure, and the open bottom of the tray 3 is configured to be able to hold sludge. When in the second state, the tray 3 is in an inverted T-shaped structure, and the top of the horizontal section of the tray 3 is configured to be able to hold sludge. The adjusting mechanism is configured to be able to switch the state of the tray 3.

[0025] Specifically in this embodiment, the microwave generator is located at the top of the drying chamber 101 during installation and is configured to emit microwaves from top to bottom, ensuring that the microwaves can be absorbed by the sludge as much as possible, which is convenient for improving the drying efficiency of the sludge. Optionally, the microwave generator can be configured to be able to emit high-frequency microwaves with a frequency of 2450 MHZ. The conveying chain 2 is in a rounded rectangular shape and horizontally extends in the front-rear direction and is divided into two layers in the up-down direction, ensuring that a closed conveying loop can be formed.

[0026] Furthermore, to facilitate the unified collection of the dried sludge, the sludge microwave drying treatment device is configured to further include a collection hopper, and the collection hopper is located at the front end of the upper conveying chain 2.

[0027] Initially, the tray 3 is in a U-shaped structure.

[0028] During use, first place the sludge at the open bottom of the tray 3, then drive the tray 3 to move through the conveying chain 2, and at the same time start the microwave generator; when the tray 3 enters the drying chamber 101 with the conveying chain 2, the microwave emitted by the microwave generator penetrates the sludge from top to bottom, causing the water molecules in the sludge to vibrate violently and generate heat by friction under the action of the high-frequency electromagnetic field, and then quickly vaporize into water vapor and separate from the sludge to achieve drying.

[0029] When the tray 3 moves to the first preset position, under the action of the adjusting mechanism, the tray 3 gradually changes from a U shape to an inverted T shape. At this time, the sludge originally piled at the open bottom of the tray 3, during the shape transformation of the tray 3, with the help of gravity and its own viscous flow, is first divided into two halves, and then the upper-layer sludge of each half moves downward and outward along the surface of the tray 3, and then moves to the edge position of the drying chamber 101. At this time, the lower-layer sludge is exposed and located in the middle position of the drying chamber 101, which can not only shorten the escape path of the water vapor in the lower-layer sludge and is conducive to improving the drying efficiency, but also enable the lower-layer sludge to directly receive stronger microwave energy, so that the upper and lower layers of sludge can reach an approximate drying degree and is conducive to improving the drying uniformity.

[0030] As the tray 3 continues to move, when the tray 3 reaches the second preset position, the adjusting mechanism comes into play again, and the tray 3 gradually returns from the inverted T shape to the U shape; at this time, under the action of gravity and its own flow, the original upper-layer sludge all moves inward and re-covers the original lower-layer sludge, and then gathers into one piece.

[0031] After the tray 3 leaves the drying chamber 101, the dried sludge is uniformly collected through the collecting hopper.

[0032] In a further embodiment, the tray 3 is provided to include a drying film 301 and a plurality of support skeletons 302, and the drying film 301 is fixedly laid on the top of all the support skeletons 302; the plurality of support skeletons 302 are arranged side by side, and each support skeleton 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 sequentially hinged; the first support plates 3021 on the same side of different support skeletons 302 are jointly hinged on the first hinge shaft; the first support plate 3021 and the second support plate 3022 are jointly hinged on the second hinge shaft; a retaining structure 303 is provided at the top of the outermost support skeleton 302, and the retaining structure 303 is configured to be able to prevent the sludge from separating from the tray 3.

[0033] Specifically in this embodiment, both the first support plate 3021 and the second support plate 3022 are strip-shaped structures. The two second support plates 3022 of the same support frame 302 are connected by hinges during installation to ensure that a hinge fit can be formed. The support frame 302 is U-shaped when the tray 3 is in the first state, ensuring that the drying film 301 can be supported in a U shape. The support frame 302 is inverted T-shaped when the tray 3 is in the second state, ensuring that the drying film 301 can be supported in an inverted T shape.

[0034] The enclosure structure 303 is provided to include a first baffle 3031, a second baffle 3032, a third baffle 3033, and a fourth baffle 3034. The first baffle 3031 is a strip-shaped structure and two in number. The first baffle 3031 is vertically and fixedly arranged at the end of the first support plate 3021 of different support frames 302 on the same side away from the second support plate 3022 during installation; the second baffle 3032 is a strip-shaped structure and four in number. The second baffle 3032 is parallelly and fixedly arranged on the first support plate 3021 of the outermost support frame 302 during installation; the third baffle 3033 is a strip-shaped structure and two in number. The third baffle 3033 is parallelly and fixedly arranged on one of the second support plates 3022 of the outermost support frame 302 during installation; the fourth baffle 3034 is a strip-shaped structure and two in number. The fourth baffle 3034 is parallelly and fixedly arranged on the other second support plate 3022 of the outermost support frame 302 during installation; to avoid interference, the ends of the third baffle 3033 and the fourth baffle 3034 close to the first support plate 3021 are both stepped structures, ensuring that during the process of the tray 3 switching forms, the second baffle 3032 is always located inside the third baffle 3033 or the fourth baffle 3034, ensuring that the enclosure structure 303 can always enclose into a closed structure.

[0035] In a further embodiment, the adjusting mechanism is provided to include a guiding belt loop 402 and two guiding side plates 401. The plate surfaces of the two guiding side plates 401 are arranged in parallel. The two guiding side plates 401 are fixedly arranged inside the base 1 and are respectively located on both sides of the conveying chain 2. A first annular groove 4011 is arranged on the inner plate surface of each guiding side plate 401; the shape of the guiding belt loop 402 is the same as that of the conveying chain 2. The guiding belt loop 402 is fixedly inserted inside the base 1 and is located inside the conveying chain 2 and is arranged in parallel with the conveying chain 2. Two second annular grooves 4021 are symmetrically arranged on the outer annular surface of the guiding belt loop 402; a first sliding rod 403 is hingedly arranged on each first hinge shaft. The first sliding rod 403 is arranged close to the foremost support frame 302 and is slidably inserted into the first annular groove 4011; a second sliding rod 404 is hingedly arranged on each second hinge shaft. The second sliding rod 404 is arranged close to the foremost support frame 302 and is slidably inserted into the second annular groove 4021.

[0036] Specifically in this embodiment, the guiding side plate 401 is in the shape of a rounded rectangle, and is in a strip structure, and horizontally extends in the front-rear direction. The plate surface of the guiding side plate 401 is arranged in the up-down direction, and the outer edge of the guiding side plate 401 is parallel to the conveying chain 2; the two guiding side plates 401 are arranged at intervals in the left-right direction. The first annular groove 4011 is provided with a first base groove 40111, first inclined grooves 40112 with equal numbers and at least one, a first straight groove 40113, second inclined grooves, and a second straight groove 40117. Among them, the first base groove 40111 is in a C-shaped structure and is a part of the shape of a rounded rectangle. When the first base groove 40111 is opened, its opening faces upward and is parallel to the conveying chain 2; the first inclined groove 40112 is located at the rear end of the first base groove 40111 and communicates with the first base groove 40111. The first inclined groove 40112 is inclined and extends in the front-lower direction; the first straight groove 40113 is located at the front end of the first inclined groove 40112 and communicates with the first inclined groove 40112, and horizontally extends in the front-rear direction. The first straight groove 40113 is arranged more inward than the rear end of the first base groove 40111; the second inclined groove is located at the front end of the first straight groove 40113 and communicates with the first straight groove 40113. The second inclined groove is inclined and extends in the front-upper direction; the second straight groove 40117 is located at the front end of the second inclined groove and communicates with both the second inclined groove and the front end of the first base groove 40111, and horizontally extends in the front-rear direction.

[0037] When the number of the first inclined grooves 40112, the first straight grooves 40113, the second inclined grooves, and the second straight grooves 40117 is set to two or more, taking the case where the number of the first inclined grooves 40112, the first straight grooves 40113, the second inclined grooves, and the second straight grooves 40117 is set to two as an example, one of the first inclined grooves 40112, the first straight grooves 40113, the second inclined grooves, and the second straight grooves 40117 is the first group, and the other of the first inclined grooves 40112, the first straight grooves 40113, the second inclined grooves, and the second straight grooves 40117 is the second group. Then, the first inclined groove 40112 of the first group is located at the rear end of the first base groove 40111 and communicates with 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 communicates with the second straight groove 40117 of the first group. The second straight groove 40117 of the second group communicates with the front end of the first base groove 40111 to ensure the formation of a complete guiding loop.

[0038] The guiding belt loop 402 is in the shape of a rounded rectangle, and is a strip structure, horizontally extending in the front-back direction. The guiding belt loop 402 is located between two guiding side plates 401. The second annular groove 4021 is provided with a second base groove 40211, fifth inclined grooves 40212 with equal quantity and at least one, fourth straight grooves 40213, sixth inclined grooves, and fifth straight grooves 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 shape of a rounded rectangle. When the second base groove 40211 is opened, its opening faces upward and is parallel to the conveying chain 2; the fifth inclined groove 40212 is located at the rear end of the second base groove 40211 and communicates with the second base groove 40211. The fifth inclined groove 40212 is inclined and extends in the front-right direction; the fourth straight groove 40213 is located at the front end of the fifth inclined groove 40212 and communicates with the fifth inclined groove 40212, and horizontally extends in the front-back direction. The fourth straight groove 40213 is arranged more inward than the rear end of the second base groove 40211; the sixth inclined groove is located at the front end of the fourth straight groove 40213 and communicates with the fourth straight groove 40213, and extends obliquely in the front-left direction; the fifth straight groove 40217 is located at the front end of the sixth inclined groove and communicates with both the sixth inclined groove and the front end of the second base groove 40211, and horizontally extends in the front-back direction.

[0039] When the quantity of the fifth inclined grooves 40212, fourth straight grooves 40213, sixth inclined grooves, and fifth straight grooves 40217 is set to two or more, taking the case where the quantity of the fifth inclined grooves 40212, fourth straight grooves 40213, sixth inclined grooves, and fifth straight grooves 40217 is set to two as an example, one of the fifth inclined grooves 40212, fourth straight grooves 40213, sixth inclined grooves, and fifth straight grooves 40217 is the first group, and the other fifth inclined grooves 40212, fourth straight grooves 40213, sixth inclined grooves, and fifth straight grooves 40217 is 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 communicates with 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 communicates with the fifth straight groove 40217 of the first group. The fifth straight groove 40217 of the second group communicates with the front end of the second base groove 40211 to ensure the formation of a complete guiding loop.

[0040] To facilitate the connection between the conveying chain 2 and the tray 3, a plurality of mounting strips 201 are fixedly provided on the conveying chain 2. The mounting strips 201 horizontally extend in the left-right direction, and the plurality of mounting strips 201 are arranged at equal intervals along the extending direction of the conveying chain 2; the mounting strip 201 is a U-shaped structure and is arranged with its opening facing outward. The second sliding rod 404 is slidably inserted into the mounting strip 201 during installation.

[0041] To avoid dead points, it is set that when the tray 3 is in the first state, two second support plates 3022 of the same support frame 302 form an inverted V-shaped structure.

[0042] During the movement of the conveying chain 2, taking the number of the first inclined groove 40112, the first straight groove 40113, the second inclined groove and the second straight groove 40117, and the number of the fifth inclined groove 40212, the fourth straight groove 40213, the sixth inclined groove and the fifth straight groove 40217 as one each for example, the conveying chain 2 drives the tray 3 to move synchronously through the mounting strip 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 conveying chain 2.

[0043] When the first sliding rod 403 moves to the junction of the first base groove 40111 and the first inclined groove 40112, the second sliding rod 404 moves to the junction 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 different support frames 302 to move downward through the first hinge shaft, and the second sliding rod 404 moves inward along the mounting strip 201, so that the first support plates 3021 gradually switch from the vertical state to the horizontal state, and the second support plates 3022 gradually switch from the horizontal state to the vertical state, so that the tray 3 gradually changes from a U-shape to an inverted T-shape.

[0044] When the first sliding rod 403 moves to the junction of the first inclined groove 40112 and the first straight groove 40113, the second sliding rod 404 moves to the junction of the fifth inclined groove 40212 and the fourth straight groove 40213; as the conveying 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 tray 3 maintains an inverted T-shaped shape and moves along with the conveying chain 2.

[0045] When the first sliding rod 403 moves to the junction of the first straight groove 40113 and the second inclined groove, the second sliding rod 404 moves to the junction of the fourth straight groove 40213 and the sixth inclined groove; as the conveying chain 2 continues to move, the first sliding rod 403 moves from the first straight groove 40113 to the second inclined groove and moves along the second inclined groove, and the second sliding rod 404 moves from the fourth straight groove 40213 to the sixth inclined groove and moves along the sixth inclined groove. At this time, the first sliding rod 403 drives all the first support plates 3021 on the same side of different support skeletons 302 to move upward through the first hinge shaft, and the second sliding rod 404 moves outward along the mounting strip 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.

[0046] When the first sliding rod 403 moves to the junction of the second inclined groove and the second straight groove 40117, the second sliding rod 404 moves to the junction of the sixth inclined groove and the fifth straight groove 40217; as the conveying 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 tray 3 maintains a U-shaped shape and moves with the conveying chain 2.

[0047] 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 conveying 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 tray 3 maintains a U-shaped shape and moves with the conveying chain 2.

[0048] In other embodiments, it is set that the tray 3 further has a third state. When in the third state, the tray 3 is a W-shaped structure; the sludge microwave drying treatment device further includes a cutting mechanism 5. The cutting mechanism 5 is configured to be able 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 be able to guide the upper layer of the cut sludge to the drying film 301 corresponding to the second support plate 3022.

[0049] Specifically in this embodiment, the first annular groove 4011 is provided with a first base groove 40111, first inclined grooves 40112 with equal quantity and at least one, 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 third inclined groove 40114 is located at the front end of the first straight groove 40113 and communicates with the first straight groove 40113. The third inclined groove 40114 is inclined and extends in the front upper direction. The third straight groove 40115 is located at the front end of the third inclined groove 40114 and communicates with the third inclined groove 40114, and extends horizontally in the front-rear 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 inclined groove 40116 is located at the front end of the third straight groove 40115 and communicates with both the third straight groove 40115 and the second straight groove 40117. The third inclined groove 40114 is inclined and extends in the front upper direction.

[0050] When the quantity of the first inclined grooves 40112, the first straight groove 40113, the third inclined grooves 40114, the third straight grooves 40115, the fourth inclined grooves 40116, and the second straight grooves 40117 is set to be two or more, taking the case where the quantity of each of the first inclined grooves 40112, the first straight groove 40113, the third inclined grooves 40114, the third straight grooves 40115, the fourth inclined grooves 40116, and the second straight grooves 40117 is set to be two as an example, one set of the first inclined grooves 40112, the first straight groove 40113, the third inclined grooves 40114, the third straight grooves 40115, the fourth inclined grooves 40116, and the second straight grooves 40117 is the first group, and the other set of the first inclined grooves 40112, the first straight groove 40113, the third inclined grooves 40114, the third straight grooves 40115, the fourth inclined grooves 40116, and the second straight grooves 40117 is the second group. Then, the first inclined groove 40112 of the first group is located at the rear end of the first base groove 40111 and communicates with 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 communicates with the second straight groove 40117 of the first group. The second straight groove 40117 of the second group communicates with the front end of the first base groove 40111 to ensure the formation of a complete guiding loop.

[0051] The second annular groove 4021 is arranged to have a second base groove 40211, fifth inclined grooves 40212 with equal quantity and at least one, fourth straight grooves 40213, seventh inclined grooves 40214, sixth straight grooves 40215, eighth inclined grooves 40216, and fifth straight grooves 40217. Among them, the seventh inclined groove 40214 is located at the front end of the fourth straight groove 40213, communicates with the fourth straight groove 40213, and extends along the front left direction; the sixth straight groove 40215 is located at the front end of the seventh inclined groove 40214, communicates with the seventh inclined groove 40214, and extends horizontally along the front-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 inclined groove 40216 is located at the front end of the sixth straight groove 40215, and communicates with both the sixth straight groove 40215 and the fifth straight groove 40217 at the same time, and extends along the front left direction.

[0052] When the quantity of the fifth inclined grooves 40212, fourth straight grooves 40213, seventh inclined grooves 40214, sixth straight grooves 40215, eighth inclined grooves 40216, and fifth straight grooves 40217 is set to two or more, taking the case where the quantity of the fifth inclined grooves 40212, fourth straight grooves 40213, seventh inclined grooves 40214, sixth straight grooves 40215, eighth inclined grooves 40216, and fifth straight grooves 40217 is two as an example, one set of the fifth inclined grooves 40212, fourth straight grooves 40213, seventh inclined grooves 40214, sixth straight grooves 40215, eighth inclined grooves 40216, and fifth straight grooves 40217 is the first group, and the other set of the fifth inclined grooves 40212, fourth straight grooves 40213, seventh inclined grooves 40214, sixth straight grooves 40215, eighth inclined grooves 40216, and fifth straight grooves 40217 is 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 communicates with 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 communicates with the fifth straight groove 40217 of the first group. The fifth straight groove 40217 of the second group communicates with the front end of the second base groove 40211 to ensure the formation of a complete guiding loop.

[0053] During the movement of the conveying chain 2, taking the case where the quantity of the first inclined groove 40112, first straight groove 40113, third inclined groove 40114, third straight groove 40115, fourth inclined groove 40116, and second straight groove 40117, and the quantity of the fifth inclined groove 40212, fourth straight groove 40213, seventh inclined groove 40214, sixth straight groove 40215, eighth inclined groove 40216, and fifth straight groove 40217 are both set to one, the conveying chain 2 drives the tray 3 to move synchronously through the mounting strip 201.

[0054] When the first sliding rod 403 moves to the junction of the first straight groove 40113 and the third inclined groove 40114, the second sliding rod 404 synchronously moves to the junction of the fourth straight groove 40213 and the seventh inclined 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 inclined groove 40114 and moves along the third inclined groove 40114, and the second sliding rod 404 moves from the fourth straight groove 40213 to the seventh inclined groove 40214 and moves along the seventh inclined groove 40214. At this time, the first sliding rod 403 drives all the first support plates 3021 on the same side of different support skeletons 302 to move upward through the first hinge shaft, and the second sliding rod 404 moves outward along the mounting strip 201, so that the first support plate 3021 gradually changes from a horizontal state to an inclined state, and the second support plate 3022 gradually changes from a vertical state to an inclined state, so that the tray 3 gradually changes from an inverted T shape to a W shape.

[0055] 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 synchronously moves to the junction of the seventh inclined groove 40214 and the sixth straight groove 40215; as the conveying 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 tray 3 maintains a W-shaped shape and moves with the conveying 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 in half, and the upper-layer sludge after cutting can be guided to the drying film 301 corresponding to the second support plate 3022, so that the outer side of the lower-layer sludge and the inner side of the upper-layer sludge can be exposed, which is beneficial to improving the overall drying effect of the sludge.

[0056] When the first sliding rod 403 moves to the junction of the third straight groove 40115 and the fourth inclined groove 40116, the second sliding rod 404 moves to the junction 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 changes from an inclined state to a vertical state, and the second support plate 3022 gradually changes from an inclined state to a horizontal state, so that the tray 3 gradually changes from a W shape to a U shape.

[0057] 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 tray 3 maintains a U-shaped shape and moves along with the conveying chain 2.

[0058] 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 conveying 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 tray 3 maintains a U-shaped shape and moves along with the conveying chain 2.

[0059] In a further embodiment, the cutting mechanism 5 is arranged to include at least a pair of cutting knives 501, the cutting knives 501 are inserted into the drying chamber 101, and the cutting surface of the cutting knives 501 is parallel to the plate surface of the first support plate 3021 when the tray 3 is in the third state; a guiding portion 502 is arranged on each cutting knife 501, the guiding portion 502 is a curved surface structure and bends towards the plate surface of the second support plate 3022 when the tray 3 is in the third state.

[0060] Specifically in this embodiment, for the convenience of installing the cutting knives 501, the cutting mechanism 5 is further arranged to include a mounting seat 503, the mounting seat 503 is a cross-shaped structure and has a first part and a second part with unequal lengths, wherein the length of the first part is longer and extends obliquely in the front right direction, the length of the second part is shorter and extends obliquely in the front left direction, the cutting knives 501 are arranged at the bottom of the first part during installation and are arranged parallel to the second part; the guiding portion 502 is a sheet-like structure, and the top end coincides with the first part and the rear end coincides with the cutting knives 501 during installation, ensuring that a curved surface structure can be formed to facilitate guiding the cut upper layer of sludge onto the corresponding drying film 301 of 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 cutting knives 501 corresponds to the position of the third straight groove 40115, ensuring that when the tray 3 is in the third state, the sludge placed on the drying film 301 corresponding to the first support plate 3021 can be cut.

[0061] In some other embodiments, in the traditional drying method, the water vapor generated by the lower-layer sludge can only escape upward through the pores of the upper-layer sludge. Affected by factors such as the sludge porosity and bulk density, the escape resistance is relatively large. To improve this situation, it is arranged that a plurality of water-permeable holes are provided on the surface of the drying membrane 301, and the water-permeable holes are configured to be able to pass water. In this way, when the lower-layer sludge generates water vapor, under the action of the pressure difference, part of the water vapor can escape from the sludge through the water-permeable holes. Due to the low-resistance channel formed by the water-permeable holes, the energy loss of the water vapor escaping is greatly reduced. According to the principle of fluid mechanics, it effectively reduces the frictional resistance and local resistance of the water vapor during the migration process; at the same time, the existence of the water-permeable holes also breaks the high-humidity environment formed by water accumulation at the bottom of the sludge during the traditional drying process. In actual operation, part of the water vapor condenses back into liquid water when moving downward and getting cold. The water-permeable holes can timely drain this part of the liquid water, preventing it from forming a water accumulation layer on the surface of the drying membrane 301, thereby improving the drying effect of the sludge.

[0062] In a further embodiment, when the tray 3 has a first state, a second state, and a third state, during the process of the tray 3 switching 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 changes from small to large, the space between the two second support plates 3022 will increase and the pressure will decrease. Furthermore, a pressure difference will be formed on both sides of the second support plate 3022. Under the action of the pressure difference, the water in the sludge is more likely to pass through the water-permeable holes, thereby realizing auxiliary drainage and being beneficial to improving the drying effect of the sludge.

[0063] In some other embodiments, it is arranged that the drying membrane 301 is made of ceramic fiber material.

[0064] Specifically in this embodiment, ceramic fiber is an inorganic fiber material mainly composed of alumina, silica, etc. Its unique microstructure and physical and chemical properties make it show significant advantages in the sludge drying scenario.

[0065] From the perspective of thermal performance, ceramic fiber has an extremely low thermal conductivity (about 0.03 to 0.04 W / (m·K) at room temperature). Compared with the drying membrane 301 made of traditional metal or polymer materials, it can effectively reduce the heat loss during the drying process. During the microwave drying process, the heat is mainly generated by the water molecules inside the sludge absorbing microwave energy. The ceramic fiber drying membrane 301 can avoid excessive heat conduction to the external environment, making the microwave energy more concentrated on the sludge and improving the energy utilization efficiency. At the same time, ceramic fiber also has excellent high-temperature resistance and can work stably in a high-temperature environment above 1000°C for a long time. It can withstand the local high-temperature conditions that may occur during the microwave drying process, ensuring the structural integrity and service life of the drying membrane 301 in a complex thermal environment.

[0066] In terms of chemical stability, ceramic fiber has good corrosion resistance and can resist the erosion of acidic, alkaline substances and microbial metabolites that may exist in the sludge. The sludge has a complex composition and contains various chemical substances. The drying membrane 301 made of ordinary materials is prone to corrosion and aging during long-term contact, affecting the normal operation of the equipment. The ceramic fiber drying membrane 301, with its stable chemical properties, can effectively reduce the maintenance frequency and replacement cost, and improve the reliability of equipment operation.

[0067] In addition, the ceramic fiber material also has the characteristics of light weight and good flexibility. Its density is only 1 / 5 to 1 / 10 of that of the traditional metal drying membrane 301, greatly reducing the load on the conveying chain 2 and reducing the driving energy consumption. At the same time, the good flexibility enables the drying membrane 301 to adapt to the complex movement trajectory of the conveying chain 2, and is not prone to problems such as deformation and fracture during bending and turning, ensuring the smooth conveyance of the sludge on the drying membrane 301, and providing a strong guarantee for the realization of efficient and continuous sludge drying treatment.

[0068] In some 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.

[0069] Specifically in this embodiment, during the sludge drying process, the operator needs to grasp the drying state of the sludge in the chamber, the material distribution and the equipment operation situation in real time. The observation window constructs a transparent visual channel, enabling the operator to directly observe the morphological changes of the internal sludge, the effect of microwave action, and whether there are abnormal situations such as material accumulation and equipment failures without opening the drying chamber 101. Thus, it effectively avoids the risks of heat dissipation and microwave leakage caused by frequent opening of the drying chamber 101, and at the same time reduces the operation errors caused by information loss, significantly improving the safety and reliability of equipment operation.

[0070] In some other embodiments, to facilitate the timely discharge of water vapor in the drying chamber 101, the sludge microwave drying treatment device further includes a moisture exhaust system, and the moisture exhaust system is configured to be able to discharge the water vapor in the drying chamber 101.

[0071] Specifically in this embodiment, the setting of the moisture exhaust system can not only effectively avoid problems such as enhanced microwave reflection and dew 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 moisture on the surface of the sludge, and synergistically improve the sludge drying efficiency and the service life of the equipment, providing a reliable technical guarantee for the resource utilization of sludge.

[0072] In a further embodiment, the moisture exhaust system is set to include a moisture exhaust fan. The suction port of the moisture exhaust fan is communicated with the drying chamber 101, and the exhaust port of the moisture exhaust fan is communicated with the external environment.

[0073] Specifically in this embodiment, the dehumidifying fan serves as the power source. Its air suction port is connected to the high-humidity area at the top or side of the drying chamber 101 through a pipeline to ensure that water vapor with a relatively high temperature and saturated humidity can be preferentially extracted. The air discharge port extends to the outdoor environment through a dedicated pipeline to form a complete dehumidification path. According to the theory of fluid dynamics, the dehumidifying fan generates negative pressure through the rotation of the impeller, creating an air pressure difference between the drying chamber 101 and the outside world, and prompting the water vapor in the drying chamber 101 to be quickly discharged along the path from the air suction port, through the dehumidifying fan to the air discharge port under the drive of the pressure gradient.

[0074] In some other embodiments, to facilitate improving the drying quality of the sludge, the number of microwave generators can be set to be multiple, and the multiple microwave generators are arranged at intervals in the front-back direction.

[0075] Exemplarily, the number of microwave generators can be set to be five, and the five microwave generators are arranged at equal intervals in the front-back direction.

[0076] In some other embodiments, to facilitate providing the driving force for the movement of the conveying chain 2, the sludge microwave drying treatment device is further provided with a first driving mechanism. The first driving mechanism is provided to include a first driving motor and two first rotating shafts. The two first rotating shafts are arranged at intervals and side by side in the front-back direction. The axis of the first rotating shaft extends horizontally in the left-right direction and is inserted into the base 1 and can rotate around its own axis. A first sprocket is fixedly sleeved on each first rotating shaft, and the first sprocket and the conveying 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 the conveying chain 2 can be driven to move.

[0077] In some other embodiments, to improve the smoothness of the movement of the tray 3, the number of conveying chains 2 can be set to be multiple, and the multiple conveying chains 2 are arranged at intervals in the left-right direction.

[0078] Exemplarily, the number of conveying chains 2 can be set to be two, and the two conveying chains 2 are arranged at intervals in the left-right direction.

[0079] In a further embodiment, to facilitate providing the driving force for the movement of the conveying chain 2, the sludge microwave drying treatment device is further provided with a second driving mechanism. The second driving mechanism is provided to include a second driving motor and two second rotating shafts. The two second rotating shafts are arranged at intervals and side by side in the front-back direction. The axis of the second rotating shaft extends horizontally in the left-right direction and is inserted into the base 1 and can rotate around its own axis. Two second sprockets are fixedly sleeved at both ends of each second rotating shaft, and the two second sprockets on the same second rotating shaft respectively form a transmission fit with the two conveying chains 2; 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 the conveying chain 2 can be driven to move.

[0080] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, 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, it should be considered as the scope recorded in this specification.

[0081] The above-described embodiments merely represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A sludge microwave drying treatment device, characterized in that The sludge microwave drying device includes: A base with a drying chamber; A microwave generator, inserted into the drying chamber and configured to emit microwaves; A conveying chain, arranged on the base and forming a closed conveying loop on the base, and the conveying loop passes through the drying chamber; A plurality of trays, arranged on the conveying chain and arranged along the extending direction of the conveying chain; the trays can be deformed and have a first state and a second state. When in the first state, the tray is in a U-shaped structure, and the open bottom of the tray is configured to hold sludge. When in the second state, the tray is in an inverted T-shaped structure, and the top of the horizontal section of the tray is configured to hold the sludge; An adjusting mechanism, configured to switch the state of the tray.

2. The sludge microwave drying treatment device according to claim 1, wherein The tray includes a drying film and a plurality of support skeletons, and the drying film is fixedly laid on the top of all the support skeletons; the plurality of support skeletons are arranged side by side, and each support skeleton includes a first support plate, a second support plate, the second support plate, and the first support plate that are sequentially hinged; the first support plates on the same side of different support skeletons are jointly hinged on a first hinge shaft; the first support plate and the second support plate are jointly hinged on a second hinge shaft; a retaining structure is arranged on the top of the outermost support skeleton, and the retaining structure is configured to prevent the sludge from separating from the tray.

3. The sludge microwave drying treatment device according to claim 2, characterized in that, The adjusting mechanism includes a guiding belt loop and two guiding side plates. The plate surfaces of the two guiding side plates are arranged in parallel. The two guiding side plates are fixedly arranged inside the base and are respectively located on both sides of the conveying chain. A first ring groove is arranged on the inner plate surface of each guiding side plate; the shape of the guiding belt loop is the same as that of the conveying chain. The guiding belt loop is fixedly inserted into the base and is located inside the conveying chain and is arranged parallel to the conveying chain. Two second ring grooves are symmetrically arranged on the outer ring surface of the guiding belt loop; a first sliding rod is hinged on each first hinge shaft, the first sliding rod is arranged close to the frontmost support skeleton and is slidably inserted into the first ring groove; a second sliding rod is hinged on each second hinge shaft, the second sliding rod is arranged close to the frontmost support skeleton and is slidably inserted into the second ring groove.

4. The sludge microwave drying treatment device according to claim 2, characterized in that, The tray also has a third state. When in the third state, the tray is in a W-shaped structure; the sludge microwave drying device further includes a cutting mechanism, and the cutting mechanism 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 can guide the upper layer of the cut sludge to the drying film corresponding to the second support plate.

5. The sludge microwave drying treatment device according to claim 4, characterized in that, The cutting mechanism includes at least a pair of cutting knives, the cutting knives are inserted into the drying chamber, and the cutting surface of the cutting knife is parallel to the plate surface of the first support plate when the tray is in the third state; a guiding portion is provided on each cutting knife, the guiding portion is a curved surface structure and bends towards the plate surface of the second support plate when the tray is in the third state.

6. The sludge microwave drying treatment device according to claim 2, characterized in that, A plurality of water permeable holes are provided on the surface of the drying film, and the water permeable holes are configured to allow water to pass through.

7. The sludge microwave drying treatment device according to claim 2, characterized in that, The drying film is made of ceramic fiber material.

8. The sludge microwave drying treatment device according to claim 1, wherein An observation window is provided on the base, and the observation window is configured to be able to view the situation inside the drying chamber.

9. The sludge microwave drying treatment device according to claim 1, characterized in that, The sludge microwave drying treatment device further includes a moisture exhaust system, and the moisture exhaust system is configured to be able to exhaust the water inside the drying chamber.

10. The sludge microwave drying treatment device according to claim 9, characterized in that, The moisture exhaust system includes a moisture exhaust fan, the suction port of the moisture exhaust fan is communicated with the drying chamber, and the exhaust port of the moisture exhaust fan is communicated with the external environment.

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