Sediment drying equipment for wastewater treatment

Abstract

The invention belongs to the technical field of waste water sediment drying, and discloses waste water treatment sediment drying equipment which comprises a machine box, a drying part is arranged on the machine box, and the drying part comprises piston cylinders fixedly connected to the inner walls of the two sides of the bottom end of the machine box; the telescopic electric cylinder is started to drive the two piston plates to move downwards synchronously, the piston plates move downwards in the piston cylinders to form pressurized gas, the gas generated in the machine box has a certain temperature, after hot gas makes contact with the inclined panel made of the metal material repeatedly, the temperature of the gas rises again, the heated gas is sprayed out of the rectangular air plate, and the gas is sprayed out of the rectangular air plate. The air is directly sprayed to the sediment in the drying operation process, the push-pull rod which moves horizontally can drive the rake frame to move horizontally synchronously, then the sediment on the filter screen plate can be stirred, uneven heating of the sediment is avoided, the rake frame is matched with hot air sprayed out of the rectangular air plate to conduct drying operation while stirring is conducted, and the drying efficiency is improved. And the drying temperature can be effectively increased, and meanwhile the drying speed of precipitates can be increased.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater sediment drying, in particular to wastewater treatment sediment drying equipment. Background Art

[0002] Wastewater treatment is to treat wastewater by physical, chemical and biological methods to purify wastewater, reduce pollution, and even achieve wastewater recovery and reuse, so as to make full use of water resources. The existing chemical precipitation treatment method for treating wastewater is a method of separating and enriching solution components by ion hydrolysis or insoluble salt precipitation. It is a traditional water treatment method with the characteristics of simple operation and high precipitation efficiency. It is widely used in the softening process in water quality treatment and the comprehensive treatment of industrial wastewater to remove heavy metal ions and cyanide in water. By adding soluble chemical agents to the wastewater, it reacts chemically with inorganic pollutants in ionic state to generate insoluble or insoluble compounds precipitated, thereby achieving the purpose of purifying wastewater. After filtering, the precipitate in the wastewater needs to be concentrated and dried due to the large internal water content, and then classified and treated in the next link, and finally the treated precipitate can be returned to nature;

[0003] However, the existing method of drying the sediment generally uses a centrifugal method or a screw roller method to separate the water in the sediment. This method does not achieve a high degree of drying and the sediment is still relatively moist. Therefore, the sediment needs to be dried a second time, resulting in a slow sediment drying operation efficiency. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a wastewater treatment sediment drying device.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wastewater treatment sediment drying device, comprising a chassis, a drying part is provided on the chassis, the drying part includes a piston cylinder fixedly connected to the inner walls on both sides of the bottom end of the chassis, and the two piston cylinders respectively include a piston plate, and a spring is fixedly connected between the bottom outer wall of the piston plate and the bottom inner wall of the piston cylinder. The piston plate and the inner wall of the piston cylinder can also be slidably connected in a fitting manner. A U-shaped pipe is fixedly connected through the inner and outer walls of one end of the piston cylinder, and a group of inclined panels are fixedly connected to the inner walls of both ends of the U-shaped pipe, respectively, and the two groups of inclined panels are in opposite directions in the U-shaped pipe, and the gas flowing out of the piston cylinder can be heated by the two groups of inclined panels.

[0006] Preferably, a discharge trough is provided on one end of the chassis for discharging the dried sediment subsequently, and a material plug can be intermittently and tightly clamped in the inner wall of the discharge trough. A water pipe is also fixedly connected to the bottom end of the chassis, and a water plug can be intermittently and tightly clamped in the inner wall of the bottom end of the water pipe.

[0007] Preferably, a filter plate is fixedly connected to the inner wall of the chassis near the top, the inner wall of the upper half of the chassis is specifically in a heatable state, the heating and temperature raising means are prior art, a support plate frame is fixedly connected to the inner wall of one end of the chassis, a telescopic electric cylinder is fixedly connected to the top of the support plate frame, a cross plate is fixedly connected to the bottom end of the telescopic electric cylinder, the outer walls on both sides of the bottom end of the cross plate are respectively fixedly connected to the top ends of the two piston plates, and a cylinder cover for protecting the telescopic electric cylinder from water ingress is also fixedly connected to the top outer wall of the support plate frame.

[0008] Preferably, the tube bodies on both sides of the U-shaped pipe are fixedly connected to the inner and outer walls on both sides of one end of the chassis, and the two groups of inclined panels are made of metal plates. A rectangular wind plate is fixedly connected to the top of the U-shaped pipe, and an air groove is opened on one end of the rectangular wind plate.

[0009] Preferably, a mesh frame is provided inside the rectangular wind plate, and two T-shaped sliders are fixedly connected to the side walls at both ends of the mesh frame. T-shaped sliding grooves are provided in the inner walls at both ends of the rectangular wind plate for corresponding sliding engagement with the two groups of T-shaped sliders.

[0010] Preferably, a plurality of groups of multi-layer plug rods are installed in a rectangular array on one end of the mesh frame, and each group of the multi-layer plug rods is slidably connected to the inner and outer walls of the other end of the rectangular wind plate, and a folding dustproof net is fixedly connected to the side wall of one end of each group of the multi-layer plug rods, and the other end of each group of the folding dustproof net is fixedly connected to the outer wall of the other end of the rectangular wind plate.

[0011] Preferably, a wind wheel is specifically penetrated and movably sleeved on one side of the U-shaped pipe, and protective plate boxes are rotatably connected to the rod bodies on both sides of the wind wheel, and the outer walls at both ends of the two protective plate boxes are respectively fixedly connected to the outer wall of the chassis and one end of the rectangular wind plate.

[0012] Preferably, the rod bodies at both ends of the wind wheel are fixedly connected with limited turning handle plates, the two limited turning handle plates are slidably connected with hollow long plates, and the outer walls of one end of the two hollow long plates are fixedly connected with push-pull rods.

[0013] Preferably, a positioning guide plate is slidably connected to one side of the rod body of the two push-pull rods, the top ends of the two positioning guide plates are fixedly connected to the top inner walls of the two protective plate boxes respectively, and the rod bodies of the two push-pull rods are also slidably connected to one end of the two protective plate boxes respectively.

[0014] Preferably, the other ends of the two push-pull rods are fixedly connected with a rake frame, and the sediment filtered on the filter screen is moved by a plurality of rake frames.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention heats and dries the sediment on the filter screen plate by starting the existing technology of heating in the chassis, and after the sediment stops dripping, the telescopic electric cylinder is started to drive the cross plate and the two piston plates to move downward synchronously. The piston plate moves downward in the piston cylinder, and the connected spring is squeezed during the downward movement process, causing it to deform. Pressurized gas is formed when the piston plate moves downward in the piston cylinder, and the gas is introduced into the U-shaped pipe by squeezing. The gas passes through two groups of metal inclined panels in the U-shaped pipe, and the flowing gas is repeatedly contacted in a baffled manner by the two groups of inclined panels. The gas generated in the chassis itself has a certain temperature. After the hot gas repeatedly contacts the metal inclined panels, the inclined panels absorb the heat of the hot gas, and then transfer the heat to the surrounding air through its thermal conductivity, thereby causing the gas temperature to rise again.

[0017] The present invention causes the gas to blow the mesh frame through the rectangular wind plate, so that the mesh frame slides within the T-shaped slide groove through two groups of T-shaped sliders, thereby generating a guided translation. In that case, a plurality of multi-layer plug rods installed and clamped on the rectangular wind plate are pushed, so that they no longer seal and clamp the rectangular wind plate. As a result, the heated gas is sprayed out from the rectangular wind plate, and the gas is directly sprayed onto the sediment in the drying process. The passively pushed multi-layer plug rods simultaneously drive the installed folding dustproof net to unfold, so as to prevent some dried sediment from entering the U-shaped pipe. The drying efficiency is improved by the additional hot gas.

[0018] When the hot gas enters the rectangular wind plate, the present invention will first pass through the wind wheel and drive it to rotate. The rotating wind wheel will drive the installed limit handle disk in the protective plate box to rotate synchronously. The rotating limit handle disk will drive the hollow long plate and the push-pull rod to move synchronously. The positioning guide plate installed on the push-pull rod can horizontally guide the movement of the hollow long plate and the push-pull rod, so that the push-pull rod under translation will drive the rake frame to translate synchronously, and then the sediment on the filter screen plate can be moved to avoid uneven heating, resulting in the outer layer being dry but the inner layer of sediment still moist. The rake frame moves and cooperates with the hot gas ejected from the rectangular wind plate to perform drying operations, thereby effectively increasing the drying temperature and accelerating the drying speed of the sediment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the separation structure of the material plug and the water plug of the present invention;

[0021] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the chassis of the present invention;

[0022] Figure 4 It is a schematic diagram of the overall partial cross-sectional structure of the drying section of the present invention;

[0023] Figure 5 This is a schematic diagram of the partial split structure of the drying section of the present invention;

[0024] Figure 6 For the present invention Figure 4 A schematic diagram of the partially enlarged structure at center A;

[0025] Figure 7 It is a schematic diagram of the partial cross-sectional structure of the drying section of the present invention;

[0026] Figure 8 For the present invention Figure 7 A schematic diagram of the partially enlarged structure at B in the middle;

[0027] Fig. 9 It is a schematic diagram of the partial cross-section structure of the drying section of the present invention.

[0028] In the figure:

[0029] 1. Chassis; 11. Discharge chute; 12. Material plug; 13. Drain pipe; 14. Water plug; 15. Filter screen;

[0030] 2. Drying section; 21. Piston cylinder; 22. Piston plate; 23. Spring; 24. U-shaped pipe; 25. Inclined plate; 26. Rectangular wind plate; 27. Mesh plate frame; 2701. T-shaped slider; 2702. T-shaped slide groove; 28. Multi-layer plug rod; 29. ​​Folding dustproof net; 230. Wind wheel; 231. Protection plate box; 232. Limiting handle plate; 233. Hollow long plate; 234. Push-pull rod; 235. Positioning guide plate; 236. Rake frame. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 9 As shown, the present invention provides a wastewater treatment sediment drying device, including a chassis 1, a drying part 2 is provided on the chassis 1, the drying part 2 includes a piston cylinder 21 fixedly connected to the inner walls on both sides of the bottom end of the chassis 1, and the two piston cylinders 21 also include a piston plate 22 respectively, and a spring 23 is fixedly connected between the bottom outer wall of the piston plate 22 and the bottom inner wall of the piston cylinder 21, and the piston plate 22 and the inner wall of the piston cylinder 21 can also be fitted and slidably connected, and a U-shaped pipe 24 is fixedly connected through the inner and outer walls of one end of the piston cylinder 21, and a group of inclined panels 25 are fixedly connected to the inner walls of both ends of the U-shaped pipe 24, respectively, and the two groups of inclined panels 25 are in opposite directions in the U-shaped pipe 24, and the gas flowing out of the piston cylinder 21 can be heated by the two groups of inclined panels 25;

[0033] A discharge trough 11 is provided on one end of the chassis 1, and a material plug 12 can be intermittently and tightly clamped in the inner wall of the discharge trough 11. A downpipe 13 is also fixedly connected to the bottom end of the chassis 1, and a water plug 14 can be intermittently and tightly clamped in the inner wall of the bottom end of the downpipe 13. A filter screen 15 is fixedly connected to the inner wall of the chassis 1 near the top. The inner wall of the upper half of the chassis 1 is specifically in a heatable state, and the heat-raising means is the prior art. A support frame is fixedly connected to the inner wall of one end of the chassis 1, and a top of the support frame is connected to the bottom end of the downpipe 13. A telescopic electric cylinder is fixedly connected to the through-hole, a horizontal plate is fixedly connected to the bottom end of the telescopic electric cylinder, the outer walls on both sides of the bottom end of the horizontal plate are respectively fixedly connected to the top ends of the two piston plates 22, and a cylinder cover for protecting the telescopic electric cylinder from water ingress is also fixedly connected to the top outer wall of the support plate frame. The tube bodies on both sides of the U-shaped pipe 24 are correspondingly fixedly connected to the inner and outer walls on both sides of one end of the chassis 1. The two sets of inclined panels 25 are made of metal plates. A rectangular wind plate 26 is fixedly connected to the top end of the U-shaped pipe 24, and a wind slot is opened on one end of the rectangular wind plate 26.

[0034] The above scheme is adopted: by starting the existing technology of heating the temperature in the chassis 1, the sediment on the filter plate 15 is heated and dried, until the sediment no longer drips water, the telescopic electric cylinder can be started to drive the cross plate and the two piston plates 22 to move downward synchronously, and the piston plate 22 moves downward in the piston cylinder 21. The downward movement process will squeeze the connected spring 23, causing it to deform. When the piston plate 22 moves downward in the piston cylinder 21, pressurized gas will be formed, that is, the gas will be introduced into the U-shaped pipe 24 by squeezing. The gas will pass through the two groups of metal inclined panels 25 in the U-shaped pipe 24, and the flowing gas will be repeatedly contacted in a baffled manner through the two groups of inclined panels 25. The gas generated in the chassis 1 itself will have a certain temperature. When the hot gas repeatedly contacts the metal inclined panels 25, the inclined panels 25 will absorb the heat of the hot gas, and then transfer the heat to the surrounding air through its thermal conductivity, thereby causing the gas temperature to rise again.

[0035] A mesh frame 27 is provided inside the rectangular wind plate 26, and two T-shaped sliders 2701 are fixedly connected to the side walls at both ends of the mesh frame 27. T-shaped slide grooves 2702 that are correspondingly slidably engaged with the two groups of T-shaped sliders 2701 are opened in the inner walls at both ends of the rectangular wind plate 26. A plurality of groups of multi-layer plug rods 28 are installed in a rectangular array on one end of the mesh frame 27. Each group of multi-layer plug rods 28 is slidably connected to the inner and outer walls of the other end of the rectangular wind plate 26, and a folding dustproof net 29 is fixedly connected to the side wall of one end of each group of multi-layer plug rods 28, and the other end of each group of folding dustproof nets 29 is fixedly connected to the outer wall of the other end of the rectangular wind plate 26.

[0036] The above scheme is adopted: the gas blows the mesh frame 27 through the rectangular wind plate 26, so that the mesh frame 27 slides in the T-shaped slide groove 2702 through two groups of T-shaped sliders 2701, and generates a guided translation. In that time, the multiple multi-layer plug rods 28 installed and clamped on the rectangular wind plate 26 are pushed so that they no longer seal and clamp the rectangular wind plate 26. As a result, the heated gas will be sprayed out from the rectangular wind plate 26, and the gas will be directly sprayed onto the sediment in the drying process. The passively pushed multi-layer plug rods 28 will simultaneously drive the installed folding dustproof net 29 to unfold, so as to prevent some dried sediment from entering the U-shaped pipe 24. The drying efficiency will be improved by the additional hot gas.

[0037] A wind wheel 230 is also specifically passed through and movably sleeved on one side of the U-shaped pipe 24. A protective plate box 231 is rotatably connected to the rod bodies on both sides of the wind wheel 230. The outer walls of the two protective plate boxes 231 at both ends are respectively fixedly connected to the chassis 1 and the outer wall of one end of the rectangular wind plate 26. The rod bodies at both ends of the wind wheel 230 are fixedly connected to the limited rotation handle disk 232. The two limited rotation handle disks 232 are slidably connected to the hollow long plates 233. The outer walls of one end of the two hollow long plates 233 are fixedly connected to the outer wall of the two hollow long plates 233. A push-pull rod 234 is fixedly connected, and a positioning guide plate 235 is slidably connected to one side of the rod body of the two push-pull rods 234. The top ends of the two positioning guide plates 235 are fixedly connected to the top inner walls of the two protective plate boxes 231 respectively, and the rod bodies of the two push-pull rods 234 are also slidably connected to one end of the two protective plate boxes 231 respectively, and the other ends of the two push-pull rods 234 are fixedly connected to a rake frame 236, and the sediment filtered on the filter screen plate 15 is moved through multiple rake frames 236.

[0038] The above scheme is adopted: when the hot gas enters the rectangular wind plate 26, it will first pass through the wind wheel 230 and drive it to rotate. The rotating wind wheel 230 will drive the installed limiting handle plate 232 in the protective plate box 231 to rotate synchronously. The rotating limiting handle plate 232 will drive the hollow long plate 233 and the push-pull rod 234 to move synchronously. The positioning guide plate 235 installed on the push-pull rod 234 can guide the movement of the hollow long plate 233 and the push-pull rod 234 horizontally, thereby the push-pull rod 234 under translation will drive the rake frame 236 to translate synchronously, and then the sediment on the filter screen plate 15 can be moved to avoid uneven heating, resulting in the outer layer being dry but the inner layer of sediment is still wet. The rake frame 236 moves while cooperating with the hot gas ejected from the rectangular wind plate 26 to perform drying operations, thereby effectively increasing the drying temperature and accelerating the drying speed of the sediment.

[0039] One point that needs to be added is that the upward movement of the telescopic electric cylinder can draw the hot air in the chassis 1 into the piston cylinder 21. When the multi-layer plug rod 28 is driven by the suction force to be clamped into the rectangular wind plate 26 again, the gas can be sucked in advance. The reciprocating motion can make the gas temperature hotter and hotter, thereby achieving a better drying effect.

[0040] The working principle and use process of the present invention are as follows: the waste water and the sediment contained in the waste water are placed together in the chassis 1, and the solid and liquid are filtered and separated through the filter screen plate 15. The gradually filtered waste water will flow down to the bottom of the chassis 1, and then the existing technology of heating the chassis 1 is started to heat and dry the sediment on the filter screen plate 15. After the sediment no longer drips, the telescopic electric cylinder can be started to drive the cross plate and the two piston plates 22 to move downward synchronously. The piston plate 22 moves downward in the piston cylinder 21, and the downward movement process will squeeze the connected spring 23 to cause it to deform. When the piston plate 22 moves downward in the piston cylinder 21, pressurized gas will be formed. Instantly, the gas will be introduced into the U-shaped pipe 24 by squeezing. The gas will pass through the two sets of metal inclined panels 25 in the U-shaped pipe 24. The two sets of inclined panels 25 will repeatedly contact the flowing gas in a baffled manner, and produce in the chassis 1. The gas itself will have a certain temperature. When the hot gas repeatedly contacts the inclined plate 25 made of metal, the inclined plate 25 will absorb the heat of the hot gas, and then transfer the heat to the surrounding air through its thermal conductivity, thereby causing the gas temperature to rise again. Subsequently, the gas will blow the mesh frame 27 through the rectangular wind plate 26, so that the mesh frame 27 can slide in the T-shaped slide groove 2702 through the two sets of T-shaped sliders 2701, and produce guided translation. At that time, the multiple multi-layer plug rods 28 installed and clamped on the rectangular wind plate 26 are pushed so that they no longer seal the rectangular wind plate 26. As a result, the heated gas will be sprayed out from the rectangular wind plate 26. The gas will be directly sprayed onto the sediment in the drying process. The passively pushed multi-layer plug rods 28 will simultaneously drive the installed folding dustproof net 29 to unfold, so as to prevent some dried sediment from entering the U-shaped pipe 24. The drying efficiency will be improved by the additional hot gas.

[0041] At the same time, when the hot gas enters the rectangular wind plate 26, it will first pass through the wind wheel 230 and drive it to rotate. The rotating wind wheel 230 will drive the installed limit handle plate 232 in the protective plate box 231 to rotate synchronously. The rotating limit handle plate 232 will drive the hollow long plate 233 and the push-pull rod 234 to move synchronously. The positioning guide plate 235 installed on the push-pull rod 234 can guide the movement of the hollow long plate 233 and the push-pull rod 234 horizontally, so that the push-pull rod 234 under translation will drive the rake frame 236 Synchronous translation can move the sediment on the filter screen plate 15 to avoid uneven heating, resulting in the outer layer being dry but the inner layer of sediment still moist. The rake frame 236 moves while cooperating with the hot gas ejected from the rectangular wind plate 26 to perform drying operations, thereby effectively increasing the drying temperature and accelerating the drying speed of the sediment. The dried sediment can be manually removed by taking out the plug 12 in the discharge trough 11, and the sediment on the filter screen plate 15 can be discharged, and the filtered and separated wastewater can be released by opening the water plug 14 in the sewer pipe 13.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment sediment drying device, comprising a housing (1), characterized in that: The case (1) is provided with a drying section (2), wherein the drying section (2) comprises a piston cylinder (21) fixedly connected to the inner walls at both sides of the bottom end of the case (1), and each of the two piston cylinders (21) comprises a piston plate (22), and a spring (23) is fixedly connected between the outer wall at the bottom end of the piston plate (22) and the inner wall at the bottom end of the piston cylinder (21), and the piston plate (22) and the inner wall of the piston cylinder (21) can also be connected in a sliding manner, and a U-shaped pipe (24) is fixedly connected through the inner and outer walls of one end of the piston cylinder (21), and a group of inclined panels (25) are fixedly connected to the inner walls at both ends of the U-shaped pipe (24), and the two groups of inclined panels (25) are in opposite directions in the U-shaped pipe (24), and the gas flowing out of the piston cylinder (21) can be heated by the two groups of inclined panels (25).

2. The wastewater treatment sediment drying equipment according to claim 1, characterized in that: A discharge trough (11) is provided through one end of the casing (1) for subsequently discharging the dried sediment, and a material plug (12) can be intermittently and tightly engaged in the inner wall of the discharge trough (11). A water pipe (13) is also fixedly connected through the bottom end of the casing (1), and a water plug (14) can be intermittently and tightly engaged in the inner wall of the bottom end of the water pipe (13).

3. The wastewater treatment sediment drying equipment according to claim 2, characterized in that: A filter screen plate (15) is fixedly connected to the inner wall of the chassis (1) near the top; the inner wall of the upper half of the chassis (1) is specifically in a heatable state, and the heating and temperature raising means are prior art; a support plate frame is fixedly connected to the inner wall of one end of the chassis (1); a telescopic electric cylinder is fixedly connected to the top of the support plate frame; a horizontal plate is fixedly connected to the bottom of the telescopic electric cylinder; the outer walls on both sides of the bottom end of the horizontal plate are respectively fixedly connected to the top ends of the two piston plates (22); a cylinder cover for protecting the telescopic electric cylinder from water ingress is also fixedly connected to the outer wall of the top end of the support plate frame.

4. The wastewater treatment sediment drying equipment according to claim 3 is characterized in that: The tube bodies on both sides of the U-shaped pipe (24) are fixedly connected to the inner and outer walls on both sides of one end of the chassis (1) in a corresponding through-connected manner. The two sets of inclined panels (25) are made of metal plates. A rectangular wind plate (26) is fixedly connected to the top of the U-shaped pipe (24). An air slot is opened through one end of the rectangular wind plate (26).

5. The wastewater treatment sediment drying equipment according to claim 4, characterized in that: A mesh frame (27) is provided inside the rectangular wind plate (26), and two T-shaped sliders (2701) are fixedly connected to the side walls at both ends of the mesh frame (27), and T-shaped sliding grooves (2702) are provided in the inner walls at both ends of the rectangular wind plate (26) for corresponding sliding engagement with the two groups of T-shaped sliders (2701).

6. The wastewater treatment sediment drying equipment according to claim 5, characterized in that: A plurality of groups of multi-layer plug rods (28) are installed in a rectangular array on one end of the mesh frame (27), and each group of the multi-layer plug rods (28) is slidably connected to the inner and outer walls of the other end of the rectangular wind plate (26), and a folding dustproof net (29) is fixedly connected to the side wall of one end of each group of the multi-layer plug rods (28), and the other end of each group of the folding dustproof net (29) is fixedly connected to the outer wall of the other end of the rectangular wind plate (26).

7. The wastewater treatment sediment drying equipment according to claim 6, characterized in that: A wind wheel (230) is specifically and movably sleeved through one side of the U-shaped pipe (24), and protection plate boxes (231) are rotatably connected to the rod bodies on both sides of the wind wheel (230), and the outer walls at both ends of the two protection plate boxes (231) are respectively fixedly connected to the outer wall of the chassis (1) and one end of the rectangular wind plate (26).

8. The wastewater treatment sediment drying equipment according to claim 7, characterized in that: The two end rod bodies of the wind wheel (230) are both fixedly connected to a limit handle disc (232), the two limit handle discs (232) are both slidably connected to a hollow long plate (233), and one end outer wall of the two hollow long plates (233) is fixedly connected to a push-pull rod (234).

9. The wastewater treatment sediment drying equipment according to claim 8, characterized in that: A positioning guide plate (235) is slidably connected to one side of the rod body of the two push-pull rods (234), and the top ends of the two positioning guide plates (235) are fixedly connected to the top inner walls of the two protective plate boxes (231), and the rod bodies of the two push-pull rods (234) are also slidably connected to one end of the two protective plate boxes (231).

10. The wastewater treatment sediment drying equipment according to claim 9, characterized in that: The other ends of the two push-pull rods (234) are fixedly connected with a rake frame (236), and the sediment filtered on the filter screen plate (15) is moved by means of a plurality of rake frames (236).

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