Civil engineering sludge recovery treatment device

Abstract

The invention relates to the technical field of civil engineering, in particular to a civil engineering sludge recovery treatment device which comprises a reaction bin, a first motor, a sludge suction pump, a second motor, a third motor, a fourth motor and a heating pipe, a surface passage of the reaction bin is connected with a feeding pipe, and an upper surface passage of the reaction bin is connected with a feeding port. A liquid discharge pipe is connected to the surface of the reaction bin in a penetrating manner. Under the action of a conveying belt and a pressing roller, extrusion dewatering is completed, water is discharged through a liquid collecting bin and a flow guide pipe, under the action of a drying bin and a pretreatment bin and under the action of a heating pipe, drying operation on dewatered sludge is completed, and conveying operation after sludge treatment is completed through connection of a fourth motor and a conveying screw rod; the whole treatment process is in a closed state, environmental pollution is not caused, manual intervention is reduced, continuous operation is achieved, and the treatment and use performance and effect are improved.

Description

Technical Field

[0001] This invention relates to the field of civil engineering technology, specifically to a civil engineering sludge recycling and treatment device. Background Technology

[0002] Sludge treatment is a process of reducing, stabilizing, and rendering harmless sludge by concentrating, conditioning, dewatering, stabilizing, drying, or incinerating it.

[0003] The recycling and treatment of sludge achieves the effect of sludge reuse. However, when using existing treatment equipment, different treatment processes require different equipment. Therefore, the sludge needs to be transferred between multiple devices, making the process cumbersome and requiring manual handling. Improper handling can easily cause environmental pollution. Furthermore, after the sludge is dewatered, the clumps of sludge cannot be dispersed during the drying process, affecting the drying efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a civil engineering sludge recycling and treatment device to solve the problems mentioned in the background art, such as cumbersome treatment process, need for manual handling, improper handling, easy environmental pollution, and inability to disperse clumps of sludge during the drying process after dewatering, which affects drying efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a civil engineering sludge recycling and treatment device, comprising a reaction chamber, a first motor, a sludge suction pump, a second motor, a third motor, a fourth motor, and a heating pipe. A feed pipe is connected to the surface passage of the reaction chamber, a feeding port is connected to the upper surface passage of the reaction chamber, and a drain pipe is connected through the surface of the reaction chamber. The first motor is fixedly connected to the upper surface of the reaction chamber, and a stirring rod is fixedly connected to the output shaft of the first motor. A suction pipe is connected to the inlet passage of the sludge suction pump, and a dewatering chamber is connected to the outlet of the sludge suction pump through a pipeline passage. A collection chamber is fixedly connected to the bottom end of the dewatering chamber. A discharge channel is connected to the side surface passage, a guide pipe is connected to the surface passage of the liquid collection chamber, a drying chamber is connected to the surface passage of the discharge channel, a pretreatment chamber is provided inside the drying chamber, a dispersion chamber is connected to the surface passage of the drying chamber, a frustum plate is fixedly connected inside the dispersion chamber, a third motor is fixedly connected to the frustum plate, a dispersion rod is fixedly connected to the output shaft of the third motor through the frustum plate, a protective cover is sleeved on the outer surface of the third motor, a conveying cylinder is connected to the bottom passage of the dispersion chamber, a fourth motor is fixedly connected to the outer surface of the conveying cylinder, a conveying screw is fixedly connected to the output shaft of the fourth motor, and a heating chamber is sleeved on the outer surface of the conveying cylinder.

[0006] Preferably, the feeding port is inclined and connected to the upper surface of the reaction chamber, and a disc is movably connected to the surface of the feeding port. The stirring rod is driven inside the reaction chamber by a first motor.

[0007] Preferably, the suction pipe acts at the bottom of the reaction chamber, the reaction chamber is connected to the dewatering chamber passage through the suction pipe and the sludge suction pump, the dewatering chamber is connected to the drying chamber passage through the discharge channel, the bottom of the dewatering chamber is uniformly provided with through holes, and the dewatering chamber is connected to the liquid collection chamber through the through holes.

[0008] Preferably, the dehydration chamber is internally connected to a conveyor belt via a motor, and a pressure roller is internally connected to the dehydration chamber. A gear is fixedly connected to the outer surface of the pressure roller, and a protective shell is fixedly connected to the outer surface of the dehydration chamber. The output shaft of the second motor passes through the protective shell and is fixedly connected to the surface of the gear. A guide plate is fixedly connected to the inside of the dehydration chamber, and the position of the guide plate acts between the conveyor belt and the pressure roller.

[0009] Preferably, the pressure rollers are arranged in two sets, one above the other, inside the dewatering chamber. The conveyor belt's conveying surface height is applied between the two sets of pressure rollers through the dewatering chamber. One end of the guide plate is at the same height as the conveyor belt's conveying surface, and the other end of the guide plate is positioned between the two sets of pressure rollers.

[0010] Preferably, the gears are arranged in two sets and connected to the pressure rollers respectively, and the two sets of gears are meshed and rotated together. The gears act inside the protective shell through the dehydration chamber.

[0011] Preferably, the pretreatment chamber is hollow inside, the heating tube acts inside the pretreatment chamber, the dispersing rod acts inside the dispersing chamber through a frustum plate, and the protective cover is connected to the third motor through the frustum plate.

[0012] Preferably, the protective cover consists of two parts: one part is cylindrical and the other part is tubular, with the tubular part penetrating the surface of the dispersion chamber, and the two parts are connected by a passageway.

[0013] Preferably, the conveying cylinder and the dispersion chamber are connected vertically, the heating chamber is sleeved on the outer surface of the conveying cylinder, the heating tube is sleeved inside the heating chamber, a baffle is movably connected to the side of the dehydration chamber away from the discharge channel, a connecting block is fixedly connected to the outer surface of the baffle, a fixed scraper is slidably connected to the bottom of the dehydration chamber, elastic scrapers are movably connected to both sides of the fixed scraper, a handle is fixedly connected to the surface of the fixed scraper, a rotating rod is fixedly connected to the surface of the elastic scraper, and a torsion spring is sleeved on the outer surface of the rotating rod, an insert plate is fixedly connected to the outer surface of the dehydration chamber, and a stop plate is elastically connected to the surface of the insert plate.

[0014] Preferably, the surface of the connecting block is provided with a through groove, the insert plate passes through the surface of the connecting block through the through groove, the abutment plate abuts against the outer surface of the connecting block through the insert plate, the surface of the elastic scraper is arc-shaped, and the elastic scraper is elastically rotatably connected to the fixed scraper through a rotating rod and a torsion spring.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The reaction chamber and the first motor are connected, and the first motor and the stirring rod are connected to achieve the mixing effect of the sludge entering the reaction chamber. The feeding port facilitates the addition of relevant flocculants, causing the solid matter in the sludge to coagulate and complete solid-liquid separation. The sludge suction pump can extract and transport the settled solids. The conveyor belt and pressure rollers complete the extrusion and dewatering. The water is discharged through the collection chamber and the guide pipe. The drying chamber and the pretreatment chamber, along with the heating pipe, complete the drying operation of the dewatered sludge. The fourth motor and the conveying screw complete the conveying operation of the treated sludge. The entire treatment process is in a closed state, which will not cause environmental pollution, reduces human intervention, realizes continuous operation, and improves the performance and effect of treatment.

[0016] The third motor and the dispersing rod are connected to complete the dispersion treatment of the dewatered sludge under the action of the dispersing rod. The dewatered sludge is then pre-dried by the heating pipes in the pretreatment chamber, reducing the moisture content of the sludge and making it easier for the dispersing rod to disperse it. Under the action of the heating pipes in the heating chamber, the sludge conveyed by the conveying screw is further dried, improving the drying effect of the sludge.

[0017] By rotating the dewatering chamber and the baffle, and connecting the handle and the fixed scraper, pulling the handle changes the position of the fixed scraper and the elastic scraper at the bottom of the dewatering chamber, thus cleaning the residual mud at the bottom of the dewatering chamber. The elastic connection between the elastic scraper and the fixed scraper increases the cleaning area, and the shape of the elastic scraper helps to better collect the cleaned mud. The baffle is then easily opened by the baffle and the connecting block, and the insertion plate and the abutment plate facilitate the cleaning process. Attached Figure Description

[0018] Figure 1 This is a frontal perspective view of the structure of the present invention; Figure 2 This is a frontal perspective three-dimensional sectional view of the structure of the present invention; Figure 3 This is a three-dimensional sectional view of the reaction chamber of the present invention; Figure 4 This is a three-dimensional sectional view of the dehydration chamber of the present invention; Figure 5For the present invention Figure 4 A top-view three-dimensional schematic diagram of the structure of the conveyor belt; Figure 6 This is a three-dimensional sectional view of the drying chamber of the present invention; Figure 7 This is a three-dimensional front sectional view of the dehydration chamber structure of the present invention; Figure 8 For the present invention Figure 7 A three-dimensional schematic diagram of the structure of the fixed scraper in the middle; Figure 9 For the present invention Figure 7 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Reaction chamber; 11. Feed pipe; 12. Feeding port; 13. Drain pipe; 2. First motor; 21. Stirring rod; 3. Sludge suction pump; 31. Suction pipe; 4. Dewatering chamber; 41. Guide pipe; 42. Discharge channel; 43. Collection chamber; 44. Pressure roller; 45. Conveyor belt; 46. Gear; 47. Second motor; 48. Protective shell; 5. Drying chamber; 51. Dispersion chamber; 52. Pretreatment chamber; 53. Dispersion rod; 54. Third motor; 55. Protective cover; 6. Conveying cylinder; 61. Conveying screw rod; 62. Fourth motor; 7. Heating chamber; 8. Heating tube; 9. Baffle; 91. Connecting block; 92. Fixed scraper; 93. Elastic scraper; 94. Handle; 95. Torsion spring; 96. Insert plate; 97. Support plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-9 One embodiment provided by the present invention: A sludge recycling and treatment device for civil engineering includes a reaction chamber 1, a first motor 2, a sludge suction pump 3, a second motor 47, a third motor 54, a fourth motor 62, and a heating pipe 8. A feed pipe 11 is connected to the surface of the reaction chamber 1, a feeding port 12 is connected to the upper surface of the reaction chamber 1, and a drain pipe 13 is connected through the surface of the reaction chamber 1. The first motor 2 is fixedly connected to the upper surface of the reaction chamber 1, and a stirring rod 21 is fixedly connected to the output shaft of the first motor 2. A suction pipe 31 is connected to the inlet of the sludge suction pump 3, and the outlet of the sludge suction pump 3 is connected to a heating pipe 8. A dehydration chamber 4 is provided, with a collection chamber 43 fixedly connected to its bottom. A discharge channel 42 is connected to the side surface of the dehydration chamber 4. A guide pipe 41 is connected to the surface of the collection chamber 43. A drying chamber 5 is connected to the surface of the discharge channel 42. A pretreatment chamber 52 is provided inside the drying chamber 5. A dispersion chamber 51 is connected to the surface of the drying chamber 5. A frustum plate is fixedly connected inside the dispersion chamber 51. A third motor 54 is fixedly connected to the frustum plate. A dispersion rod 53 is fixedly connected to the output shaft of the third motor 54 through the frustum plate. A protective cover 55 is fitted onto the outer surface of the third motor 54. The bottom passage of the bulk silo 51 is connected to a conveying cylinder 6. A fourth motor 62 is fixedly connected to the outer surface of the conveying cylinder 6. The output shaft of the fourth motor 62 is fixedly connected to a conveying screw 61. A heating chamber 7 is sleeved on the outer surface of the conveying cylinder 6. Through the connection between the reaction chamber 1 and the feed pipe 11, the sludge is easily fed into the reaction chamber 1 by the feed pipe 11. Under the action of the stirring rod 21, the sludge is stirred. The sludge is then drawn and guided by the sludge suction pump 3. Through the use of the sludge suction pump 3 and the water pump, the water in the reaction chamber 1 is drawn and discharged. In the dewatering chamber... Under the action of roller 44 and pressure roller 4, dewatering is completed. Under the action of drying chamber 5 and pretreatment chamber 52, the sludge is dried by heating pipe 8. The sludge is discharged by conveying screw 61. Reaction chamber 1, first motor 2, sludge suction pump 3, second motor 47, third motor 54, fourth motor 62 and heating pipe 8 are all existing products. Their principle is existing technology and will not be described in detail here. The heating temperature of heating pipe 8 is achieved by temperature controller and related sensors. This is existing technology and is not shown in the figure.

[0022] Furthermore, the feeding port 12 is inclinedly connected to the upper surface of the reaction chamber 1. A disc is movably connected to the surface of the feeding port 12. The stirring rod 21 acts inside the reaction chamber 1 through the first motor 2. Through the connection between the feeding port 12 and the reaction chamber 1, the corresponding flocculant can be easily added to the inside of the reaction chamber 1 under the action of the feeding port 12. Under the stirring action of the stirring rod 21, it can react fully to achieve the solid-liquid separation effect of sludge. The disc on the feeding port 12 realizes the opening and closing control of the feeding port 12 channel.

[0023] Furthermore, the suction pipe 31 acts at the bottom of the reaction chamber 1. The reaction chamber 1 is connected to the dewatering chamber 4 via the suction pipe 31 and the sludge suction pump 3. The dewatering chamber 4 is connected to the drying chamber 5 via the discharge channel 42. The bottom of the dewatering chamber 4 is evenly provided with through holes. The dewatering chamber 4 is connected to the liquid collection chamber 43 via the through holes. Through the connection of the sludge suction pump 3 and the suction pipe 31, the sludge settled in the reaction chamber 1 is easily extracted under the action of the suction pipe 31 and put into the dewatering chamber 4 to complete the next process.

[0024] Furthermore, a conveyor belt 45 is rotatably connected to the inside of the dewatering chamber 4 via a motor, and a pressure roller 44 is rotatably connected inside the dewatering chamber 4. A gear 46 is fixedly connected to the outer surface of the pressure roller 44, and a protective shell 48 is fixedly connected to the outer surface of the dewatering chamber 4. The output shaft of the second motor 47 passes through the protective shell 48 and the surface of the gear 46 and is fixedly connected. A guide plate is fixedly connected inside the dewatering chamber 4, and the position of the guide plate acts between the conveyor belt 45 and the pressure roller 44. Through the action of the conveyor belt 45 and the pressure roller 44, and under the action of the guide plate, the sludge is squeezed by the pressure roller 44 to complete the dewatering operation.

[0025] Furthermore, the pressure rollers 44 are arranged in two sets, one above the other, inside the dewatering chamber 4. The conveying surface of the conveyor belt 45 acts between the two sets of pressure rollers 44 through the dewatering chamber 4. One end of the guide plate is at the same height as the conveying surface of the conveyor belt 45, and the other end of the guide plate acts between the two sets of pressure rollers 44. Through the rotation of the pressure rollers 44, the semi-solid sludge is squeezed and dewatered. Under the action of the collection chamber 43 and the guide pipe 41, the collection and diversion of the liquid are completed.

[0026] Furthermore, the gears 46 are connected in two sets to the pressure rollers 44. The two sets of gears 46 mesh and rotate with each other. The gears 46 act inside the protective shell 48 through the dewatering chamber 4. Through the connection between the gears 46 and the pressure rollers 44, the gears 46 rotate under the action of the protective shell 48, thereby controlling the rotation of the pressure rollers 44 in the dewatering chamber 4 and completing the squeezing and dewatering operation of the sludge.

[0027] Furthermore, the interior of the pretreatment chamber 52 is hollow. The heating pipe 8 acts inside the pretreatment chamber 52, and the dispersing rod 53 acts inside the dispersing chamber 51 through the frustum plate. The protective cover 55 is connected to the third motor 54 through the frustum plate. Through the connection between the drying chamber 5 and the pretreatment chamber 52, the pre-drying treatment of the dewatered sludge is achieved under the action of the pretreatment chamber 52 and the heating pipe 8, thereby reducing the moisture content in the sludge.

[0028] Furthermore, the protective cover 55 consists of two parts: one part is cylindrical and the other part is tubular. The tubular protective cover 55 penetrates the surface of the dispersion chamber 51. The two parts of the protective cover 55 are connected by a passageway. Through the connection between the third motor 54 and the dispersion rod 53, the sludge is dispersed under the rotation of the dispersion rod 53, which improves its drying performance. Under the action of the protective cover 55, the third motor 54 has an independent space, avoiding contamination of the third motor 54 and affecting its normal use.

[0029] Furthermore, the conveying cylinder 6 and the dispersion chamber 51 are connected vertically. The heating chamber 7 is sleeved on the outer surface of the conveying cylinder 6, and the heating pipe 8 is sleeved inside the heating chamber 7. The side of the dewatering chamber 4 away from the discharge channel 42 is movably connected to a baffle 9. A connecting block 91 is fixedly connected to the outer surface of the baffle 9. A fixed scraper 92 is slidably connected to the bottom end of the dewatering chamber 4. Elastic scrapers 93 are movably connected to both sides of the fixed scraper 92. A handle 94 is fixedly connected to the surface of the fixed scraper 92. A rotating rod is fixedly connected to the surface of the elastic scraper 93, and a torsion spring 95 is sleeved on the outer surface of the rotating rod. An insert plate 96 is fixedly connected to the outer surface of the dewatering chamber 4. A stop plate 97 is elastically connected to the surface of the insert plate 96. Through the connection between the conveying cylinder 6 and the fourth motor 62, and the connection between the output shaft of the fourth motor 62 and the conveying screw 61, the conveying screw 61 is rotated inside the conveying cylinder 6, completing the sludge conveying operation. Under the action of the heating chamber 7 and the heating pipe 8, the drying effect and performance of the sludge are further improved.

[0030] Furthermore, a through groove is provided on the surface of the connecting block 91, through which the insert plate 96 passes. The abutment plate 97 abuts against the outer surface of the connecting block 91 via the insert plate 96. The surface of the elastic scraper 93 is arc-shaped. The elastic scraper 93 is elastically rotatably connected to the fixed scraper 92 via a rotating rod and a torsion spring 95. Through the connection of the baffle 9 and the dewatering chamber 4, the connection between the connecting block 91 and the insert plate 96 facilitates the opening and closing of the baffle 9 on the dewatering chamber 4. With the connection between the handle 94 and the fixed scraper 92, the elastic connection between the fixed scraper 92 and the elastic scraper 93 completes the cleaning operation of the mud at the bottom of the dewatering chamber 4.

[0031] Working principle: During the sludge recycling process, the sludge, after the release of harmful gases, enters the reaction chamber 1 via a conveying pump and feed pipe 11. A suitable flocculant is added through the feeding port 12. The first motor 2 is started, causing its stirring rod 21 to rotate, achieving a full reaction and completing the solid-liquid separation of the sludge. The settled sludge enters the dewatering chamber 4 via a sludge suction pump 3 and suction pipe 31, where it is conveyed by the conveyor belt 45. The second motor 47 and gear 46 further compress the sludge. Roller 44 rotates to complete the squeezing and dewatering operation of sludge. The dewatered sludge enters the drying chamber 5 through the discharge channel 42. Under the action of the pretreatment chamber 52 and the heating pipe 8, the sludge is pre-dried. Under the action of the dispersing rod 53, the sludge that has been squeezed and agglomerated is dispersed. Under the action of the conveying screw 61, the sludge is conveyed. Under the action of the heating chamber 7 and the heating pipe 8, the sludge is dried again and then discharged into the conveying cylinder 6 through the conveying screw 61, thus completing the sludge recycling process.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A civil engineering sludge recycling and treatment device, comprising a reaction chamber (1), a first motor (2), a sludge suction pump (3), a second motor (47), a third motor (54), a fourth motor (62), and a heating tube (8), characterized in that: The surface passage of the reaction chamber (1) is connected to the feed pipe (11), the upper surface passage of the reaction chamber (1) is connected to the feeding port (12), the surface of the reaction chamber (1) is connected to the drain pipe (13), the first motor (2) is fixedly connected to the upper surface of the reaction chamber (1), the output shaft of the first motor (2) is fixedly connected to the stirring rod (21), the inlet passage of the sludge suction pump (3) is connected to the suction pipe (31), the outlet of the sludge suction pump (3) is connected to the dewatering chamber (4) through the pipe passage, the bottom end of the dewatering chamber (4) is fixedly connected to the collection chamber (43), the side surface passage of the dewatering chamber (4) is connected to the discharge channel (42), the surface passage of the collection chamber (43) is connected to the guide pipe (41), the discharge channel (42) is connected to the discharge channel (42). 2) A drying chamber (5) is connected to the surface passage. A pretreatment chamber (52) is provided inside the drying chamber (5). A dispersion chamber (51) is connected to the surface passage of the drying chamber (5). A frustum plate is fixedly connected inside the dispersion chamber (51). A third motor (54) is fixedly connected to the frustum plate. A dispersion rod (53) is fixedly connected through the output shaft of the third motor (54) through the frustum plate. A protective cover (55) is sleeved on the outer surface of the third motor (54). A conveying cylinder (6) is connected to the bottom passage of the dispersion chamber (51). A fourth motor (62) is fixedly connected to the outer surface of the conveying cylinder (6). A conveying screw rod (61) is fixedly connected to the output shaft of the fourth motor (62). A heating chamber (7) is sleeved on the outer surface of the conveying cylinder (6).

2. The civil engineering sludge recycling and treatment device according to claim 1, characterized in that: The feeding port (12) is inclined and connected to the upper surface of the reaction chamber (1). A disc is movably connected to the surface of the feeding port (12). The stirring rod (21) acts inside the reaction chamber (1) through the first motor (2).

3. The civil engineering sludge recycling and treatment device according to claim 1, characterized in that: The suction pipe (31) acts on the bottom end of the reaction chamber (1). The reaction chamber (1) is connected to the dewatering chamber (4) through the suction pipe (31) and the sludge suction pump (3). The dewatering chamber (4) is connected to the drying chamber (5) through the discharge channel (42). The bottom end of the dewatering chamber (4) is uniformly provided with through holes. The dewatering chamber (4) is connected to the liquid collection chamber (43) through the through holes.

4. The civil engineering sludge recycling and treatment device according to claim 1, characterized in that: The dehydration chamber (4) is connected to a conveyor belt (45) via a motor. The dehydration chamber (4) is connected to a pressure roller (44) via a motor. A gear (46) is fixedly connected to the outer surface of the pressure roller (44). A protective shell (48) is fixedly connected to the outer surface of the dehydration chamber (4). The output shaft of the second motor (47) passes through the protective shell (48) and the surface of the gear (46) and is fixedly connected. A guide plate is fixedly connected to the inside of the dehydration chamber (4), and the position of the guide plate is between the conveyor belt (45) and the pressure roller (44).

5. The civil engineering sludge recycling and treatment device according to claim 4, characterized in that: The pressure rollers (44) are arranged in two sets, one above the other, inside the dehydration chamber (4). The conveying surface height of the conveyor belt (45) is applied between the two sets of pressure rollers (44) through the dehydration chamber (4). One end of the guide plate is at the same height as the conveying surface of the conveyor belt (45), and the other end of the guide plate is at the height between the two sets of pressure rollers (44).

6. The civil engineering sludge recycling and treatment device according to claim 4, characterized in that: The gears (46) are in two sets and are connected to the pressure roller (44). The two sets of gears (46) are meshed and rotated together. The gears (46) act inside the protective shell (48) through the dehydration chamber (4).

7. The civil engineering sludge recycling and treatment device according to claim 1, characterized in that: The pretreatment chamber (52) is hollow inside. The heating tube (8) acts inside the pretreatment chamber (52). The dispersing rod (53) acts inside the dispersing chamber (51) through the frustum plate. The protective cover (55) is connected to the third motor (54) through the frustum plate.

8. The civil engineering sludge recycling and treatment device according to claim 1, characterized in that: The protective cover (55) consists of two parts. One part of the protective cover (55) is cylindrical, and the other part of the protective cover (55) is long tubular. The long tubular protective cover (55) penetrates the surface of the dispersion chamber (51), and the two parts of the protective cover (55) are connected by a passage.

9. A civil engineering sludge recycling and treatment device according to claim 1, characterized in that: The conveying cylinder (6) and the dispersion chamber (51) are connected vertically. The heating chamber (7) is sleeved on the outer surface of the conveying cylinder (6). The heating pipe (8) is sleeved inside the heating chamber (7). A baffle (9) is movably connected to the side of the dehydration chamber (4) that is away from the discharge channel (42). A connecting block (91) is fixedly connected to the outer surface of the baffle (9). A fixed scraper (92) is slidably connected to the bottom end of the dehydration chamber (4). Elastic scrapers (93) are movably connected to both sides of the fixed scraper (92). A handle (94) is fixedly connected to the surface of the fixed scraper (92). A rotating rod is fixedly connected to the surface of the elastic scraper (93), and a torsion spring (95) is sleeved on the outer surface of the rotating rod. An insert plate (96) is fixedly connected to the outer surface of the dehydration chamber (4). A stop plate (97) is elastically connected to the surface of the insert plate (96).

10. A civil engineering sludge recycling and treatment device according to claim 9, characterized in that: The surface of the connecting block (91) is provided with a through groove, the insert plate (96) passes through the surface of the connecting block (91) through the through groove, the abutment plate (97) abuts against the outer surface of the connecting block (91) through the insert plate (96), the surface of the elastic scraper (93) is arc-shaped, and the elastic scraper (93) is elastically rotatably connected to the fixed scraper (92) through a rotating rod and a torsion spring (95).

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