CN112047605A - Environment-friendly sludge drying system - Google Patents

Abstract

The invention discloses an environment-friendly sludge drying system, comprising: a sludge tank, a first stirring device is arranged inside, which comprises a first rotating shaft, a plurality of stirring rods, a first stirring rod and a second stirring rod, The length of the stirring rod is gradually shortened from top to bottom, and its end is close to the inner wall of the sludge tank, the length of the first stirring rod is greater than that of the second stirring rod, and the first stirring rod and the second stirring rod are alternately arranged; A section body and a second section body, the top of the second section body is provided with a discharge port; the dryer includes a drying cabinet body, a support frame, a lifting device, and a second stirring device, and the feeding funnel is located at the discharge port The lifting device can drive the drying cabinet to turn up and down with the support frame as the fulcrum; the second stirring device includes a second rotating shaft, a long stirring rod, a short stirring rod, and a scraper, and the adjacent scrapers are alternately distributed. The feeder of the invention can automatically feed materials with high efficiency, the sludge is convenient to add, the sludge will not block the sticky wall, and the sludge drying efficiency is high.

Description

An environmentally friendly sludge drying system

technical field

The invention belongs to the technical field of sludge treatment, in particular to an environment-friendly sludge drying system.

Background technique

With the development of industrial technology and national economy, the output of sludge is increasing day by day, and the disposal and development and utilization of sludge have also been paid attention to. method becomes possible. At present, there are many sludge drying equipment in the market, but these equipments have the following shortcomings: direct drying of agglomerated sludge, resulting in incomplete sludge drying and high processing costs; in the drum type equipment, the sludge is easy to stick to the wall, The drying efficiency is seriously reduced; the amount of sludge dried in the box-type equipment is relatively small, and the sludge treatment efficiency is low; a large amount of waste gas is generated during the drying process, and the traditional sludge drying equipment is simply treated or directly discharged, causing environmental problems. Pollution; sludge drying equipment lacks automatic feeding device.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the present invention provides an environment-friendly sludge drying system that is energy-saving and environment-friendly, has high drying efficiency, effectively prevents sticking to the wall and realizes automatic feeding.

The technical scheme adopted by the present invention to solve the technical problem is: an environment-friendly sludge drying system, comprising:

The sludge tank has a conical structure with a large upper and a small lower, and a first stirring device is arranged inside. A plurality of stirring rods, and the first stirring rod and the second stirring rod are arranged at the discharge port at the bottom of the sludge tank, the length of the multiple stirring rods gradually shortens from top to bottom, and the ends thereof are close to the inner wall of the sludge tank , the length of the first stirring rod is greater than the length of the second stirring rod, and the first stirring rod and the second stirring rod are alternately arranged;

The feeder includes a first section body connected with the feed inlet and the discharge port of the sludge tank, and a second section body arranged obliquely with the first section body, the top of the second section body is provided with a discharge port;

The dryer includes a drying box body with a feeding funnel, a support frame and a lifting device arranged under the drying box body, and a second stirring device arranged in the drying box body, the feeding funnel is located in the row directly below the material opening; the lifting device can drive the drying cabinet to turn up and down with the support frame as the fulcrum, so that the sludge in the drying cabinet is evenly distributed;

The second stirring device includes a second rotating shaft extending along the length direction of the drying cabinet body, a long stirring rod vertically connected with the second rotating shaft, and a short stirring rod vertically connected with the second rotating shaft and staggered with the long stirring rods. , and the scrapers vertically connected to the adjacent long stirring rods, and the adjacent scrapers are alternately distributed on the symmetrical sides with the second rotating shaft as the center line.

Further, the lifting device is a hydraulic lifting device, and the hydraulic rod is connected to the outer wall of the drying cabinet through a ball hinge, and is arranged below the left end of the drying cabinet; the number of the supporting frames is two, and they are symmetrically arranged. On both sides of the axis of the drying cabinet, the top of the support frame is connected to the drying cabinet through a latch hinge.

Further, the drying cabinet body includes an electric heating layer, a thermal insulation layer and a shell from the inside out; a humidity probe is arranged inside the drying cabinet, and a humidity probe display connected to the humidity probe is arranged outside the drying cabinet body .

Further, the first stirring device also includes a first driven pulley connected with the top end of the first rotating shaft, a first driven pulley connected with the first driven pulley through the first belt, and a first driven pulley for driving the first driven pulley to rotate. the first drive motor.

Further, the second stirring device also includes a second driven pulley connected to the end of the second rotating shaft, a second driven pulley connected to the second driven pulley through a second belt, and a second driven pulley for driving the second driven pulley. A rotating second drive motor.

Further, the sludge tank and the feeder are connected by a bracket, and the bracket includes a vertical section fixedly connected to the side wall of the sludge tank, vertically connected to the vertical section, and fixedly connected below the end of the first section body. The horizontal section, and the inclined section parallel and fixedly connected with the second section body, the vertical section is provided with a control panel, and the horizontal section is provided with a third motor for driving the screw feeding mechanism inside the first section body , the inclined section is provided with a fourth motor for driving the screw feeding mechanism inside the second section body.

Further, a feed solenoid valve is provided at the feed funnel of the dryer body, a discharge solenoid valve is provided at the outlet of the dryer body, and the dryer body is provided with an intake valve near the feed funnel. The air inlet is connected with a blower, and an air outlet is provided just above the outlet of the drying cabinet.

Further, the air outlet is provided with an exhaust gas treatment box, which sequentially includes a HEAP filter screen layer, an activated carbon filter screen layer and a desiccant layer from top to bottom.

Further, a sludge cooling vehicle is provided directly below the outlet.

Further, the scraper is made of high temperature resistant material, which is in contact with the inner wall of the drying cabinet.

The beneficial effect of the present invention is that the feeder can automatically feed materials with high efficiency, which makes it more convenient to fill the sludge; the first stirring device arranged in the sludge tank pre-mixes the sludge to avoid blocking the discharge port of the sludge tank, and the first stirring device is arranged in the sludge tank. The end of the stirring rod of the stirring device is parallel and close to the inner wall of the sludge tank, which can effectively prevent the sludge from sticking to the inner wall of the sludge tank; the scraper cleans the inner wall of the drying cabinet to prevent the sludge from sticking to the wall and improve the heat conduction efficiency; The material port is welded with the feeding port of the feeder, which can prevent the sludge from leaking out; the blower can draw air into the inside of the drying cabinet to speed up the air circulation speed inside the drying cabinet, thereby improving the sludge drying efficiency; the drying cabinet body The second stirring device further stirs the sludge, so that the sludge is heated evenly, and the drying efficiency is improved; the air outlet can discharge the waste gas with a large amount of water vapor, and the air inlet always has new dry air entering, reducing the drying time. The air humidity in the drying box can improve the drying efficiency; the drying box body is provided with an insulating layer to reduce heat loss and energy consumption; the waste gas treatment box disposes of the waste gas discharged during the drying process to reduce environmental pollution; the inlet and outlet electromagnetic The valve seals the drying cabinet to prevent the leakage of waste gas during the drying process and pollutes the environment; the drying cabinet is fixed by a lifting device and two support frames. The hydraulic lifting device connects the drying cabinet through a ball hinge, and the support frame connects the drying cabinet through a latch hinge. When the sludge enters the drying cabinet, the hydraulic lifting device lifts the drying cabinet and the support frame to adjust the inclination angle of the drying cabinet, so that the sludge is evenly stacked and the drying efficiency is improved. The drying box body is placed horizontally. After the sludge is dried, the hydraulic lifting device and the support frame are used to raise the drying box body, which is conducive to the discharge of sludge; the drying box body is equipped with a humidity probe to monitor the internal humidity of the drying box body. The humidity probe display is convenient for real-time understanding of the internal humidity of the drying cabinet; the sludge cooling truck is used to cool the dried sludge for the next step; the whole system is controlled by the control panel, which is convenient and efficient.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the dryer of the present invention.

3 is a schematic structural diagram of the second stirring device of the present invention.

FIG. 4 is a schematic top view of the structure of the sludge tank of the present invention.

FIG. 5 is a schematic structural diagram of the lifting device of the present invention.

6 is a schematic structural diagram of a drying box support frame of the present invention.

FIG. 7 is a schematic diagram of the internal structure of the waste gas treatment box of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figures 1-7, an environmentally friendly sludge drying system includes a sludge tank 1 for storing sludge, a feeder 3 connected to a discharge port 11 at the bottom of the sludge tank 1, and a feeder 3 The discharge port 33 is opposite to the dryer 4.

The dryer 4 includes a drying cabinet body 41, a support frame 41 and a lifting device 43 arranged under the drying cabinet body 41, and a second stirring device 5 arranged in the drying cabinet body 41; the number of the support frames 41 is Two, which are symmetrically arranged on both sides of the axis of the length direction of the drying cabinet 41, and the top of the support frame 41 is connected to the outside of the drying cabinet 41 through the latch hinge 421; the lifting device 43 is a hydraulic lifting device, and its hydraulic rod 431 passes through The ball hinge 432 is connected with the outer wall of the drying cabinet body 41 and is arranged below the left end of the drying cabinet body 41 . The lifting device 43 can drive the drying box body 41 to turn up and down with the support frame 42 as a fulcrum, so that the sludge in the drying box body 41 is more evenly distributed.

When the sludge enters the drying cabinet 41, the hydraulic rod 431 of the lifting device 43 lifts the drying cabinet 41 and the support frame 41 to adjust the inclination angle of the drying cabinet 41, so that the sludge is evenly stacked, and the drying efficiency is improved. During the mud drying process, the drying cabinet body 41 is placed horizontally. After the sludge is dried, the drying cabinet body 41 is raised by the hydraulic rod 431 and the support frame 41, so that the sludge can be discharged by its own weight.

The outermost layer of the drying cabinet body 41 is the shell 414, the middle layer is the insulation layer 413, and the inner layer is the electric heating layer 412. The electric heating layer 412 directly and efficiently heats the sludge, and the insulation layer 413 reduces heat loss and effectively reduces energy consumption. . A humidity probe 415 is fixed at the upper right corner of the drying cabinet body 41, a humidity probe display 416 is fixed at the upper right end of the drying cabinet body 41, and an inlet is arranged at the upper left end of the drying cabinet body 41, and a feeding funnel is installed directly above the entrance. 411, and the feeding funnel 411 is welded on the casing 414.

The inlet of the drying box body 41 is provided with a feeding solenoid valve 44, the lower right end of the drying box body 41 is provided with an outlet 417, and the outlet 417 is provided with a discharging solenoid valve 45, the feeding solenoid valve 44 and the discharging solenoid valve 45. It is in a closed state during the drying process to reduce energy loss and prevent waste gas from leaking. An air inlet 418 is provided on the upper left end of the drying cabinet body 41 and near the feeding funnel 411. Air outlet 419, a support plate is welded on the upper left end of the drying cabinet body 41, and a blower 46 is fixed on the support plate. The blower fan 46 is communicated with the air inlet 418, and a bracket is welded at the upper right end of the drying cabinet body 41 and the air outlet 419, which is fixed by the bracket The exhaust gas treatment box 7, and the air intake pipe 74 of the exhaust gas treatment box 7 is communicated with the air outlet 419 of the drying box body 41, and a sludge cooling vehicle 8 is arranged directly below the outlet 417 of the drying box body 41, which can The dried sludge is cooled and then transported to other places for the next stage of treatment. During the process of drying the sludge, the blower 46 continuously introduces external air to the inside of the drying cabinet 41 through the air inlet 418 to speed up the circulation of the air inside the drying cabinet 41, so that the sludge is heated more evenly and the drying speed of the sludge is improved. And push the exhaust gas with a large amount of water vapor to be discharged into the exhaust gas treatment box 7 through the air outlet 419 .

The interior of the waste gas treatment box 7 is divided into three layers, which sequentially include a HEAP filter screen layer 71, an activated carbon filter screen layer 72 and a desiccant layer 73 from top to bottom. The exhaust gas discharged through the air outlet 419 first passes through the desiccant layer through the air intake pipe 74 73. The desiccant layer 73 can absorb a large amount of water vapor, and then enter the activated carbon filter screen layer 72. The activated carbon filter screen layer 72 can absorb organic gases such as benzene, phenols, lipids, alcohols, etc. containing toluene, xylene, and benzene. It can effectively remove a large amount of odor and harmful gases, and then enter the HEAP filter screen layer 71, which can filter out the relatively high air volume in the exhaust gas. Small particulate matter, and then treated non-polluting waste gas is discharged from the exhaust pipe 75, which can achieve environmental protection and no pollution.

The second stirring device 5 includes a second rotating shaft 51 extending along the length direction of the drying cabinet 41, a long stirring rod 52 vertically connected to the second rotating shaft 51, vertically connected to the second rotating shaft 51, and staggered with the long stirring rod 52 The arranged short stirring rods 53 and the scrapers 54 vertically connected to the ends of the adjacent long stirring rods 52 are alternately distributed on symmetrical sides with the second rotating shaft 51 as the center line.

The scraper 54 is made of high temperature resistant material, and is in slight contact with the inner wall of the drying cabinet body 41 .

The long stirring rods 52 and the short stirring rods 53 are staggered, which can crush the sludge more thoroughly, increase the heating area of the sludge, improve the drying speed and make the sludge drying more thoroughly. The ends of the two adjacent long stirring rods 52 are welded with scrapers. The mud plates 54 and the mud scrapers 54 are alternately distributed on both sides of the symmetry with the second shaft 51 as the center line. The mud scrapers 54 slightly contact the electric heating layer 412 of the drying cabinet The sludge on the heating layer 412 prevents the sludge from sticking to the wall, improves the heat conduction efficiency, and further improves the drying efficiency.

In order to drive the second rotating shaft 51 to rotate, the second stirring device 5 further includes a second driven pulley 55 connected to the left end of the second rotating shaft 51 , and a second driving pulley connected to the second driven pulley 55 through a second belt 56 . 57, and a second driving motor 58 for driving the second driving pulley 57 to rotate. The second driving motor 58 is fixedly connected to the lower left end position of the drying cabinet body 41 through a bracket.

The sludge tank 1 has a conical structure with a large upper and a small lower, and is provided with a first stirring device 2 for preliminary crushing of the sludge. The first rotating shaft 21 in the sludge tank 1, a plurality of stirring rods 22 vertically connected to the first rotating shaft 21, and the first stirring rod 23 and the second stirring rod 24 arranged at the discharge port 11 at the bottom of the sludge tank 1, so The lengths of the plurality of stirring rods 22 are gradually shortened from top to bottom, and their ends are close to the inner wall of the sludge tank 1. Two stirring rods 22 can be symmetrically arranged in the same horizontal plane, or can be uniform along the circumferential direction of the first rotating shaft 21. Multiple rods are provided, the length of the first stirring rod 23 is greater than the length of the second stirring rod 24 , and the first stirring rod 23 and the second stirring rod 24 are alternately arranged.

A plurality of stirring rods 22 gradually shorten from the conical part of the sludge tank 1 to the lower part, and the end surfaces of the stirring rods 22 are parallel and close to the inner wall of the sludge tank 1, which can preliminarily crush the sludge and prevent the sludge from sticking to the wall. The rods 23 and the second stirring rods 24 are staggered in length and short at the discharge port 11 of the sludge tank 1 to prevent sludge from clogging the discharge port 13. In this embodiment, the number of the second stirring rods 24 is two, respectively. They are arranged in parallel above and below the first stirring rod 23 , and the length of the first stirring rod 23 is equivalent to the inner diameter of the discharge port 11 .

In order to drive the first rotating shaft 21 to rotate, the first stirring device 2 further includes a first driven pulley 25 connected to the top of the first rotating shaft 21 , and a first driving pulley connected to the first driven pulley 25 through a first belt 26 . 27, and a first drive motor 28 for driving the first driving pulley 27 to rotate, the first drive motor 28 is fixedly connected to the top position of the sludge tank 1 through a bracket.

The feeder 3 includes a first segment body 31 welded with the feed opening 30 and the discharge opening 11 at the bottom of the sludge tank 1, and a second segment body 32 arranged obliquely with the first segment body 31. The second segment body 32 is from bottom to bottom. It extends upward and is provided with a discharge port 33 at the top, and the discharge port 33 is located just above the feed funnel 411 of the dryer body 41 .

The first section body 31 has a screw feeding mechanism inside, which is driven by the third motor 621 and the pulley, and the second section body 32 has a screw feeding mechanism inside, which is driven by the fourth motor 631 and the pulley, and the two screw feeding mechanisms cooperate with each other. After the sludge feeding is completed, the screw feeding mechanism is the prior art and will not be repeated here.

The sludge tank 1 and the feeder 3 are connected by a bracket 6, the bracket 6 includes a vertical section 61 fixedly connected to the side wall of the sludge tank 1, vertically connected to the vertical section 61, and fixedly connected under the end of the first section body 31 A square horizontal section 62, and an inclined section 63 parallel to the second section body 32 and fixedly connected, the third motor 621 is fixedly connected to the horizontal section 62, the fourth motor 631 is fixed to the inclined section 63, and the vertical section 61 A control panel 611 is provided, and the control panel 611 imports a PLC program to control the operation of the entire sludge drying system.

The working process of the present invention is to pour a large amount of wet sludge into the sludge tank 1, turn on the power supply, start the sludge automatic feeder 3 and open the dryer 4 through the control panel 611, and specifically open the drying cabinet body 41 The feeding solenoid valve 44 at the inlet, the first driving motor 28 drives the first stirring device 2, and the first stirring device 2 can initially crush the sludge in the sludge tank 1 to prevent the sludge from sticking to the wall and blocking the discharge port 11. The sludge enters the feeder 3 from the discharge port 11. The feeder 3 is driven by the third motor 621 and the fourth motor 631. The sludge moves forward by the thrust of the spiral blade, and the sludge enters the feed through the discharge port 33. The funnel 411 then enters the drying cabinet 41 through the entrance. During the feeding process, the lifting device 43 lifts the drying cabinet 41 through the hydraulic rod 431 and cooperates with the support frame 42 to adjust the inclination angle of the drying cabinet 41, so that the sludge is stacked. More uniform, improve drying efficiency. After the sludge enters, use the lifting device 43 to adjust the horizontal placement of the drying cabinet body 41, turn off the feeder 3 through the control panel 611, close the feeding solenoid valve 44 of the drying cabinet body 41, and then through the control panel 611, respectively. The second stirring device 5, the electric heating layer 412, and the blower 46 of the drying cabinet 41 are activated. The electric heating layer 412 provides heat for sludge drying. The second stirring device 5 is further coordinated by the long stirring rod 52 and the short stirring rod 53. The sludge is crushed to increase the heating area of the sludge, so that the sludge is heated more evenly. The scraper 54 can clean the sludge in the electric heating layer 412, prevent the sludge from sticking to the wall, and improve the thermal conductivity. The thermal insulation layer 413 can effectively reduce heat loss and reduce Energy consumption, the air blower 46 introduces air, enters the drying cabinet 41 through the air inlet 418, increases the air circulation speed of the drying cabinet 41, makes the sludge heat more evenly, and pushes the waste gas containing a large amount of water vapor to be discharged through the air outlet 419, It can reduce the air humidity in the drying cabinet 41, and cooperate with the second stirring device 5 to improve the drying efficiency and make the sludge drying more thoroughly; Entering the waste gas treatment box 7, the waste gas passes through the desiccant layer 73, the activated carbon filter layer 72, and the HEAP filter layer 71 respectively. The desiccant layer 73 can absorb a large amount of water vapor, and the activated carbon filter layer 72 can absorb toluene, xylene, Benzene and other organic gases such as benzene, phenols, lipids, alcohols and other organic gases and malodorous gases and various gases with low concentration and large air volume containing trace heavy metals, and can effectively remove a large number of odors and harmful gases, HEAP filter 95 Small particulate matter in the exhaust gas can be filtered out, and the treated exhaust gas is discharged through the exhaust pipe 75 without polluting the environment; during the drying process, the humidity probe 415 can monitor the humidity inside the drying cabinet 41, and the humidity probe display 416 Real-time understanding of the internal humidity of the drying cabinet 41, after the sludge is dried, turn off the electric heating layer 412 through the control panel 611, open the discharge solenoid valve 45 at the same time, and use the hydraulic rod 431 to cooperate with the support frame 42 to adjust the drying cabinet. 41, the dried sludge can be automatically discharged by its own weight under the cooperation of the second stirring device 5, and enter the sludge cooling vehicle 8 through the outlet 417. After the discharge is completed, the control panel 611 is used to close the outlet material solenoid valve 45.

The above-mentioned specific embodiments are used to explain the present invention, rather than limit the present invention. Any modification and change made to the present invention within the spirit of the present invention and the protection scope of the claims all fall into the protection scope of the present invention.

Claims (10)

1. an environment-friendly sludge drying system is characterized in that comprising: The sludge tank (1) has a conical structure with a large top and a small bottom, and is provided with a first stirring device (2) inside, and the first stirring device (2) includes vertically extending into the sludge tank (1) from the top. ), a plurality of stirring rods (22) vertically connected to the first rotating shaft (21), and a first stirring rod (23) disposed at the discharge port (11) at the bottom of the sludge tank (1) ) and the second stirring rod (24), the lengths of the plurality of stirring rods (22) are gradually shortened from top to bottom, and their ends are close to the inner wall of the sludge tank (1), and the length of the first stirring rods (23) The length is greater than the length of the second stirring rod (24), and the first stirring rod (23) and the second stirring rod (24) are alternately arranged; The feeder (3) comprises a first section body (31) connected with the feed port (30) and the discharge port (11) of the sludge pond (1), and a second section body (31) arranged obliquely with the first section body (31). a segment body (32), a discharge port (33) is provided on the top of the second segment body (32); A drying machine (4), comprising a drying cabinet body (41) with a feeding funnel (411), a support frame (42) and a lifting device (43) arranged below the drying cabinet body (41), and a The second stirring device (5) in the drying cabinet body (41), the feeding funnel (411) is located directly below the discharge port (33); the lifting device (43) can drive the drying cabinet body (41) Turn up and down with the support frame (42) as the fulcrum, so that the sludge in the drying cabinet body (41) is evenly distributed; The second stirring device (5) comprises a second rotating shaft (51) extending along the length direction of the drying cabinet body (41), a long stirring rod (52) vertically connected with the second rotating shaft (51), The rotating shaft (51) is vertically connected to the short stirring rods (53) arranged in a staggered manner with the long stirring rods (52), and the scraper (54) is vertically connected to the adjacent long stirring rods (52). The plates (54) are alternately distributed on two symmetrical sides with the second rotation axis (51) as the center line. 2. The environment-friendly sludge drying system according to claim 1, characterized in that: the lifting device (43) is a hydraulic lifting device, and the hydraulic rod (431) is connected to the drying cabinet body through a ball hinge (432) (41) The outer walls are connected to each other, and are arranged below the left end of the drying cabinet body (41); the number of the supporting frames (42) is two, which are symmetrically arranged on both sides of the axis of the drying cabinet body (41), and the supporting frames (42) The top is connected to the drying cabinet body (41) through a latch hinge (421). 3 . The environment-friendly sludge drying system according to claim 1 , wherein the drying cabinet body ( 41 ) comprises an electric heating layer ( 412 ), a thermal insulation layer ( 413 ) and a casing from the inside out. 4 . (414); a humidity probe (415) is arranged inside the drying cabinet body (41), and a humidity probe display (416) connected to the humidity probe (415) is arranged outside the drying cabinet body (41). 4. The environment-friendly sludge drying system according to claim 1, wherein the first stirring device (2) further comprises a first driven pulley (25) connected to the top of the first rotating shaft (21) , a first drive pulley (27) connected with the first driven pulley (25) through a first belt (26), and a first drive motor (28) for driving the first drive pulley (27) to rotate. 5. The environment-friendly sludge drying system according to claim 1, wherein the second stirring device (5) further comprises a second driven pulley (55) connected to the end of the second rotating shaft (51) ), a second driving pulley (57) connected with the second driven pulley (55) through a second belt (56), and a second driving motor (58) for driving the second driving pulley (57) to rotate. 6 . The environment-friendly sludge drying system according to claim 1 , wherein the sludge tank ( 1 ) and the feeder ( 3 ) are connected by a bracket ( 6 ), and the bracket ( 6 ) includes a connection with the sewage sludge. 7 . The vertical section (61) fixedly connected to the side wall of the mud pool (1) is vertically connected to the vertical section (61) and fixedly connected to the horizontal section (62) below the end of the first section body (31), and An inclined section (63) parallel to the second section body (32) and fixedly connected, the vertical section (61) is provided with a control panel (611), and the horizontal section (62) is provided with a control panel (611) for driving the first The third motor (621) of the internal screw feeding mechanism of the segment body (31), the inclined segment (63) is provided with a fourth motor (631) for driving the internal screw feeding mechanism of the second segment body (32). 7. The environment-friendly sludge drying system according to claim 1, characterized in that: a feeding solenoid valve (44) is provided at the feeding funnel (411) of the drying cabinet body (41), and the The outlet (417) of the drying cabinet body (41) is provided with a discharge solenoid valve (45), and the drying cabinet body (41) is provided with an air inlet (418) near the feeding funnel (411), and the air inlet (418) is communicated with a blower (46), and an air outlet (419) is provided just above the outlet (417) of the drying cabinet body (41). 8. The environment-friendly sludge drying system according to claim 7, characterized in that: the air outlet (419) is provided with a waste gas treatment box (7), which sequentially comprises a HEAP filter screen layer ( 71), an activated carbon filter mesh layer (72) and a desiccant layer (73). 9 . The environment-friendly sludge drying system according to claim 7 , wherein a sludge cooling vehicle ( 8 ) is arranged directly below the outlet ( 417 ). 10 . 10 . The environment-friendly sludge drying system according to claim 1 , wherein the scraper ( 54 ) is made of a high temperature resistant material, and is in contact with the inner wall of the drying cabinet ( 41 ). 11 .

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