A sludge multi-stage heat recovery drying equipment

Abstract

The present invention relates to the technical field of sludge treatment equipment, including a vibrating plate, one side of which is provided with a transmission component for driving the vibrating plate to move up and down while rotating and reciprocating, and a mud turning component and a motor for turning over the sludge in the vibrating plate are installed above the vibrating plate. By arranging the cooperation between the vibrating plate, the transmission component, the mud turning component and the motor, the motor drives the vibrating plate to move up and down while rotating and reciprocating through the power transmission of the transmission component, and continuously shakes the sludge in the vibrating plate to make it evenly heated, thereby reducing the phenomenon that the drying efficiency is reduced due to different drying degrees between the surface layer and the lower layer when the sludge is dried due to sludge accumulation. At the same time, when the output shaft of the motor rotates, it can also drive the mud turning component to work, and repeatedly turn over the sludge in the vibrating plate, so that the sludge in the vibrating plate is more fully in contact with the heat flow generated by the heating equipment, so that the sludge is dried evenly and the drying efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment equipment, and in particular to a sludge multi-stage heat recovery and drying equipment. Background Art

[0002] Sludge drying is the process of removing most of the water content from sludge through infiltration or evaporation. The dried sludge can be used for landfill, production of building materials and asphalt production. Dried sludge generally refers to the use of self-evaporation facilities in a sludge drying plant or a sludge dryer to heat and dry the sludge.

[0003] When drying sludge, the sludge will accumulate in the sludge dryer when entering the sludge dryer, and the accumulated thickness of the sludge is large, which makes the sludge drying time longer. In order to solve the problem of sludge accumulation, the sludge dryer in the existing technology uses multiple parallel sludge transmission belts to repeatedly transmit the sludge, so that the sludge accumulation thickness on the sludge transmission belt is reduced and the sludge is repeatedly moved, and then repeatedly contacted with the dry hot air source to accelerate the completion of the sludge drying. However, in this process, the sludge on the sludge transmission belt is stationary. During heating and drying, the drying time of the surface sludge is earlier than that of the lower sludge, and the sludge on the surface that dries first covers the lower sludge, making it difficult for the lower sludge to contact the dry hot air source, thereby extending the drying time and low drying efficiency.

[0004] In view of this, in order to solve the above technical problems, the present invention provides a sludge multi-stage heat recovery and drying equipment. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the sludge on the sludge conveying mesh belt is stationary, and the drying time of the surface sludge is earlier than that of the lower layer sludge during heating and drying, and the sludge on the surface that dries first covers the sludge on the lower layer, making it difficult for the lower layer sludge to contact with the dry hot air source, thereby prolonging the drying time and reducing the drying efficiency.

[0006] The present invention provides a sludge multi-stage heat recovery and drying equipment, including a box body and a heating device arranged inside the box body, and also includes: a vibration plate 3 for containing sludge is installed in the box body 1 and is located on one side of the heating device 2, one side of the vibration plate is provided with a transmission component for driving the vibration plate to move up and down while rotating and reciprocating, a mud turning component for turning over the sludge in the vibration plate is installed above the vibration plate, and a motor for providing power to the transmission component and the mud turning component is fixed on the inner surface of the box body and located on one side of the mud turning component.

[0007] Preferably, the transmission assembly comprises:

[0008] A sleeve, the upper surface of which is fixedly connected to the lower surface of the vibration plate;

[0009] A fixing rod, the fixing rod is arranged inside the sleeve and is slidably connected with the sleeve;

[0010] A hinged rod, the hinged rod is arranged on one side of the fixed rod and one end of the hinged rod is hinged to the sleeve ball;

[0011] A bracket, the bracket is slidably connected to the hinge rod, and the bracket includes two vertically arranged fixing plates;

[0012] A first pulley, the first pulley being fixedly connected to the output shaft of the motor;

[0013] The second pulley is arranged directly below the first pulley and between two fixed plates. The center of the second pulley is slidably connected to the hinge rod. A belt is connected between the second pulley and the first pulley.

[0014] Preferably, the mud turning assembly comprises:

[0015] A bidirectional screw rod, wherein the bidirectional screw rod is fixedly connected to the motor output shaft through a coupling;

[0016] A push cylinder, the push cylinder is connected to the bidirectional lead screw in a spiral transmission;

[0017] A No. 1 connecting rod, the No. 1 connecting rod being fixedly connected to an end surface of the push cylinder away from the motor;

[0018] A second connecting rod, the second connecting rod is hinged to the free end of the first connecting rod, and the second connecting rod is configured in an inverted "L" shape;

[0019] A "J"-shaped rod, wherein a plurality of "J"-shaped rods are provided and arranged side by side, wherein the "J"-shaped rod is fixedly connected to one end of the No. 2 connecting rod away from the No. 1 connecting rod, wherein the bent end of the "J"-shaped rod contacts the upper surface of the vibration plate, and the bent end of the "J"-shaped rod is arranged to be flat;

[0020] Preferably, the upper surface of the No. 2 connecting rod is fixedly connected to one end of the spring, the free end of the spring is fixedly connected to the slider, and the slider is in sliding contact with the top of the box.

[0021] Preferably, the inner surface of the bottom of the vibration plate is set to be inclined, and a discharge port is opened on the side of the bottom of the vibration plate away from the hinge rod, and an electric control valve is installed at the discharge port.

[0022] Preferably, a material storage box is provided just below the material discharge port and outside the box body, and a flow guide pipe is connected between the material storage box and the material discharge port.

[0023] Preferably, a partition No. 1 is slidably connected below the push cylinder, the No. 2 connecting rod passes through the partition No. 1 and is slidably connected to the partition No. 1, a partition No. 2 is fixedly connected below the partition No. 1, the other end of the partition No. 2 is fixedly connected to the box body and the side close to the vibration disk is fixedly connected to the heating device.

[0024] Preferably, the hinged rod is slidably connected to the second partition.

[0025] Preferably, the surface of the push cylinder is covered with a high-temperature resistant silicone sleeve, a No. 1 air inlet is opened on the box body and above the No. 1 partition, a No. 2 air inlet is opened on the No. 1 partition, and one-way air inlet valves are installed in the No. 1 air inlet and the No. 2 air inlet.

[0026] Preferably, a heat conducting pipe is passed through the box body and located above the vibration plate, an auger is fixedly connected to the heat conducting pipe, a cavity is defined in the wall of the heat conducting pipe, a plurality of air conducting pipes are passed through the heat conducting pipe, one end of the air conducting pipe is connected to the inside of the heat conducting pipe, an air outlet is defined on the box body and located above the vibration plate, the air outlet is connected to one end of an air inlet pipe, and the other end of the air inlet pipe is connected to the cavity.

[0027] The beneficial effects of the present invention are as follows:

[0028] The present invention provides a sludge multi-stage heat recovery drying device, which cooperates with each other by arranging a vibration plate, a transmission component, a mud turning component and a motor, so that the motor drives the vibration plate to move up and down and rotate reciprocatingly through the power transmission of the transmission component, continuously shakes the sludge in the vibration plate, so that it is heated evenly, and reduces the phenomenon of different drying degrees between the surface layer and the lower layer of the sludge during sludge drying due to sludge accumulation, thereby reducing the drying efficiency.

[0029] At the same time, when the motor output shaft rotates, it can also drive the mud turning component to work, repeatedly turning the sludge in the vibration plate, so that the sludge in the vibration plate is more fully in contact with the heat flow generated by the heating equipment, so that the sludge is dried evenly;

[0030] When the mud turning component turns over the sludge in the vibrating plate, it can also break up the sludge in the vibrating plate to a certain extent, reduce the volume of some sludge, and further shorten the drying time and improve the drying efficiency;

[0031] At the same time, due to the reciprocating motion of the push plate, the airflow can be pushed into the lower chamber, promoting the flow of hot air in the lower chamber, thereby further improving the drying effect;

[0032] In addition, the heat of the hot and humid air generated during sludge drying can be effectively utilized through the drainage and heat gathering effect of the heat conduction pipe and the air inlet pipe to preliminarily heat the sludge, thereby shortening the drying time of the sludge entering the box at a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to have a clear understanding of the present invention, the structure of the present invention is introduced in the form of drawings below.

[0034] Figure 1It is a schematic diagram of the internal structure of the present invention;

[0035] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0036] Figure 3 It is a schematic diagram of the "J"-shaped rod structure of the present invention;

[0037] Figure 4 It is a schematic diagram of the heat pipe structure of the present invention;

[0038] In the figure: box body 1, heating equipment 2, vibration plate 3, transmission assembly 4, sleeve 41, fixing rod 42, hinged rod 43, bracket 44, No. 1 pulley 45, No. 2 pulley 46, mud turning assembly 5, two-way screw 51, push cylinder 52, No. 1 connecting rod 53, No. 2 connecting rod 54, "J"-shaped rod 55, motor 6, spring 7, slider 8, discharge port 9, electric control valve 10, storage box 11, guide pipe 12, No. 1 partition 13, No. 2 partition 24, No. 1 air inlet 14, No. 2 air inlet 15, heat pipe 16, auger 17, cavity 18, air guide pipe 19, air outlet 20, air inlet pipe 21. DETAILED DESCRIPTION

[0039] In order to better understand the above technical solution, Figure 1-4 And multiple specific implementation methods are described in detail for the overall technical solution.

[0040] The present invention provides a sludge multi-stage heat recovery drying device, comprising a box body 1 and a heating device 2 arranged inside the box body 1, a vibration plate 3 for containing sludge is installed in the box body 1 and located on one side of the heating device 2, a transmission component 4 for driving the vibration plate 3 to move up and down while rotating and reciprocating is arranged on one side of the vibration plate 3, a mud turning component 5 for turning over the sludge in the vibration plate 3 is installed above the vibration plate 3, and a motor 6 for providing power to the transmission component 4 and the mud turning component 5 is fixed on the inner surface of the box body 1 and located on one side of the mud turning component 5;

[0041] The heating device 2 used in the test equipment of the present invention is a DJR-100W heater produced by Yangzhou Hengbo Electric Co., Ltd., with a heating power of 25-500W;

[0042] The motor 6 used in the test equipment of the present invention is a YZRDW200L-4 / 8 model motor with a rated power of 15KW and a rated speed of 100rpm;

[0043] By adopting the above technical solution, when the sludge enters the vibration plate 3 in the box body 1, the staff controls the motor 6 and the heating device 2 to start through the controller, and the output shaft of the motor 6 rotates through the power transmission of the transmission component 4 to drive the vibration plate 3 to move up and down and to rotate and reciprocate at the same time. When the vibration plate 3 moves up and down and reciprocates at the same time, the sludge in the vibration plate 3 can be continuously shaken to make it evenly heated, thereby reducing the phenomenon of different drying degrees of the surface layer and the lower layer of the sludge during sludge drying due to sludge accumulation, thereby reducing the drying efficiency.

[0044] At the same time, when the output shaft of the motor 6 rotates, it can also drive the mud turning component 5 to work, and repeatedly turn over the sludge in the vibration plate 3, so that the sludge in the vibration plate 3 is more fully in contact with the heat flow generated by the heating equipment 2, so that the sludge is dried evenly, and when the mud turning component 5 turns over the sludge in the vibration plate 3, it can also crush the sludge in the vibration plate 3 to a certain extent, reduce the volume of part of the sludge, and further shorten the drying time and improve the drying efficiency.

[0045] As an embodiment of the present invention, the transmission assembly 4 includes:

[0046] A sleeve 41, the upper surface of which is fixedly connected to the lower surface of the vibration plate 3, and the sleeve 41 is made of cast iron;

[0047] The fixing rod 42 is arranged inside the sleeve 41 and is slidably connected to the sleeve 41. The matching clearance between the sleeve 41 and the fixing rod 42 is in the range of 0.03-0.1mm; this can avoid radial shaking between the sleeve 41 and the fixing rod 42. Lubricating oil is applied inside the sleeve 41 to reduce the wear between the sleeve 41 and the fixing rod 42.

[0048] A hinge rod 43, wherein the hinge rod 43 is disposed on one side of the fixed rod 42 and one end of the hinge rod 43 is ball-jointed with the sleeve 41, and the hinge rod 43 is configured as a Z-shaped structure;

[0049] A bracket 44, wherein the bracket 44 is slidably connected to the hinge rod 43, and the bracket 44 includes two vertically arranged fixing plates;

[0050] A first pulley 45, wherein the first pulley 45 is fixedly connected to the output shaft of the motor 6;

[0051] The second pulley 46 is arranged directly below the first pulley 45 and between the two fixed plates. The center of the second pulley 46 is slidably connected to the hinge rod 43 through a key. A belt is connected between the second pulley 46 and the first pulley 45. A V-belt transmission is used between the first pulley 45 and the second pulley 46, and the transmission ratio is 1:4.

[0052] The mud turning component 5 comprises:

[0053] A bidirectional screw rod 51, wherein the bidirectional screw rod 51 is fixedly connected to the output shaft of the motor 6 via a coupling;

[0054] A push cylinder 52, wherein the push cylinder 52 is connected to the bidirectional lead screw 51 by spiral transmission, and a nut matched with the bidirectional lead screw 51 is installed on the push cylinder 52;

[0055] A first connecting rod 53, wherein the first connecting rod 53 is fixedly connected to an end surface of the push cylinder 52 away from the motor 6;

[0056] A second connecting rod 54, wherein the second connecting rod 54 is hinged to a free end of the first connecting rod 53, and the second connecting rod 54 is configured to be in an inverted "L" shape;

[0057] A “J”-shaped rod 55, wherein a plurality of “J”-shaped rods 55 are provided and arranged side by side, wherein the “J”-shaped rod 55 is fixedly connected to one end of the No. 2 connecting rod 54 away from the No. 1 connecting rod 53, wherein the bent end of the “J”-shaped rod 55 contacts the upper surface of the vibration plate 3, and the bent end of the “J”-shaped rod 55 is configured to be flat;

[0058] The upper surface of the second connecting rod 54 is fixedly connected to one end of the spring 7, and the free end of the spring 7 is fixedly connected to the slider 8, and the slider 8 is in sliding contact with the top of the box body 1;

[0059] By adopting the above technical solution, when the sludge enters the vibration plate 3 in the box body 1, the staff controls the motor 6 and the heating device 2 to start through the controller, the output shaft of the motor 6 rotates to drive the No. 1 pulley 45 to rotate, the No. 1 pulley 45 rotates through the belt transmission to drive the No. 2 pulley 46 to rotate, and the No. 2 pulley 46 rotates to drive the hinged rod 43 to rotate, and by setting the hinged rod 43 to be "Z"-shaped, when the hinged rod 43 rotates, it drives the sleeve 41 connected to it through the ball hinge to move up and down on the fixed rod 42 while performing reciprocating rotation, so that the sludge in the vibration plate 3 can be continuously shaken to make it evenly heated, and the phenomenon of reducing the drying efficiency due to different drying degrees of the surface layer and the lower layer when the sludge is dried due to sludge accumulation is reduced;

[0060] At the same time, the rotation of the output shaft of the motor 6 drives the bidirectional screw rod 51 to rotate, and the rotation of the bidirectional screw rod 51 drives the push cylinder 52 to make a reciprocating linear motion. When the push cylinder 52 makes a reciprocating linear motion, it drives the No. 2 connecting rod 54 to make a reciprocating linear motion through the No. 1 connecting rod 53, and the No. 2 connecting rod 54 drives multiple "J"-shaped rods 55 to make a reciprocating linear motion. When making a reciprocating linear motion, the "J"-shaped rods 55 can repeatedly turn over the sludge in the vibration plate 3, so that the sludge in the vibration plate 3 is more fully in contact with the heat flow generated by the heating device 2, so that the sludge is dried evenly, and when the "J"-shaped rods 55 repeatedly turn over the sludge in the vibration plate 3, the sludge in the vibration plate 3 can also be crushed to a certain extent, reducing the volume of part of the sludge, thereby shortening the drying time and improving the drying efficiency;

[0061] In addition, since the vibration disk 3 performs reciprocating rotation while moving up and down, the second connecting rod 54 is hinged with the free end of the first connecting rod 53, and a spring 7 is fixed to the upper surface of the second connecting rod 54. The spring 7 is slidably connected to the box body 1 through a slider 8. Therefore, when the vibration disk 3 moves upward, the "J"-shaped rod 55 is pushed upward to drive the second connecting rod 54 to move upward, and at the same time, the spring 7 is squeezed. When the vibration disk 3 moves downward, the thrust received by the "J"-shaped rod 55 and the second connecting rod 54 disappears, and the spring 7 restores its elastic deformation to drive the second connecting rod 54 to move downward and reset, so that the "J"-shaped rod 55 can adapt to the up and down movement of the vibration disk 3, and then the "J"-shaped rod 55 can always be in contact with the upper surface of the vibration disk 3, ensuring the mud turning effect of the "J"-shaped rod 55 on the sludge in the vibration disk 3.

[0062] As an embodiment of the present invention, the inner surface of the bottom of the vibration plate 3 is set to be inclined, and a discharge port 9 is opened on the side of the bottom of the vibration plate 3 away from the hinge rod 43, and an electric control valve 10 is installed at the discharge port 9;

[0063] By adopting the above technical solution, when the sludge in the vibration plate 3 is dried, the staff controls the electric control valve 10 to open through the controller, and the dried sludge can be discharged from the discharge port 9 along the slope of the surface of the vibration plate 3 by its own weight.

[0064] As an embodiment of the present invention, a storage box 11 is arranged directly below the discharge port 9 and outside the box body 1, and a guide pipe 12 is connected between the storage box 11 and the discharge port 9, so that the dried sludge falls from the discharge port 9, and during the falling process, it enters the storage box 11 through the guide pipe 12 and is collected.

[0065] As an embodiment of the present invention, the push cylinder 52 is slidably connected to the No. 1 partition 13 below, the No. 2 connecting rod 54 penetrates the No. 1 partition 13 and is slidably connected to the No. 1 partition 13, the No. 2 partition 24 is fixedly connected to the No. 1 partition 13 below, the other end of the No. 2 partition 24 is fixedly connected to the box body 1 and the side close to the vibration plate 3 is fixedly connected to the heating device 2;

[0066] In order to achieve stability during the sliding process of the push cylinder 52, the present invention can limit the position of the push cylinder 52 by slidingly installing a push plate under the push cylinder 52, thereby improving the stability of the device operation;

[0067] The arrangement of the No. 1 partition plate 13 and the No. 2 partition plate 24 of the present invention can separate the motor 6, the No. 1 pulley 45 and the No. 2 pulley 46 from the area where the sludge is located, thereby reducing the amount of dust generated when the sludge is dried and adhering to the motor 6, the No. 1 pulley 45 and the No. 2 pulley 46, and extending the service life of the motor 6, the No. 1 pulley 45 and the No. 2 pulley 46;

[0068] As an embodiment of the present invention, the hinge rod 43 is slidably connected to the second partition plate 24;

[0069] Since the hinged rod 43 drives the sleeve 41 to move up and down while performing reciprocating rotational motion during the rotation process, and since the hinge point between the hinged rod 43 and the sleeve 41 is constantly changing when the sleeve 41 rotates, the movement trajectory of the sleeve 41 is arc-shaped, and therefore the straight-line distance between the hinged rod 43 and the hinge point is constantly changing. Therefore, while the hinged rod 43 drives the sleeve 41 to rotate, it is also subjected to the pulling force and pushing force of the sleeve 41 and performs straight-line reciprocating motion. Therefore, the hinged rod 43 is provided with a sliding connection with the second partition 24 to ensure the working stability of the hinged rod 43.

[0070] As an embodiment of the present invention, the surface of the push cylinder 52 is covered with a high temperature resistant silicone sleeve, and a No. 1 air inlet 14 is provided on the box body 1 and above the No. 1 partition 13, and a No. 2 air inlet 15 is provided on the No. 1 partition 13, and a one-way air inlet valve is installed in both the No. 1 air inlet 14 and the No. 2 air inlet 15;

[0071] By adopting the above technical solution, the No. 1 partition 13 divides the box body 1 into an upper chamber and a lower chamber. When the push cylinder 52 moves toward the side close to the motor 6, the gas outside the box body 1 is sucked into the upper chamber. When the push cylinder 52 moves toward the side away from the motor 6, the gas in the upper chamber is pushed out. The pushed gas enters the lower chamber from the No. 2 air inlet 15. The gas entering the lower chamber can promote the flow of hot air in the lower chamber, thereby further improving the drying effect.

[0072] In addition, an elastic sealing cover is installed at the sliding connection between the No. 2 connecting rod 54 and the No. 1 partition 13 to ensure that the No. 2 connecting rod 54 slides in the sliding groove on the No. 1 partition 13 to ensure the sealing of the upper chamber, thereby ensuring that the air intake and exhaust actions of the push cylinder 52 in the upper chamber can be carried out normally. In addition, the one-way air intake valve in the No. 1 air inlet 14 can prevent the gas from escaping from the No. 1 air inlet 14 when the push cylinder 52 pushes the gas, causing a waste of airflow, and the one-way air intake valve in the No. 2 air inlet 15 can prevent the hot air in the lower chamber from entering the upper chamber, causing a waste of heat.

[0073] As an embodiment of the present invention, a heat conducting pipe 16 is penetrated on the box body 1 and located above the vibration plate 3, an auger 17 is fixedly connected in the heat conducting pipe 16, a cavity 18 is opened on the wall of the heat conducting pipe 16, a plurality of air conducting pipes 19 are penetrated on the heat conducting pipe 16, one end of the air conducting pipe 19 is communicated with the inside of the heat conducting pipe 16, an air outlet 20 is opened on the box body 1 and located above the vibration plate 3, the air outlet 20 is connected to one end of an air inlet pipe 21, and the other end of the air inlet pipe 21 is communicated with the cavity 18;

[0074] By adopting the above technical scheme, a No. 1 feeding port is provided on the upper surface of the end of the heat conducting pipe 16 located outside the box body 1, a No. 2 feeding port is provided on the end of the heat conducting pipe 16 located inside the box body 1 and above the vibration plate 3, and the auger 17 is located at the end of the heat conducting pipe 16 away from the box body 1 and is fixedly connected to the power equipment. When it is necessary to add sludge to the vibration plate 3, the staff controls the power equipment to start through the controller, and the power equipment drives the auger 17 to rotate. The staff first adds the sludge into the heat conducting pipe 16 from the No. 1 feeding port, and the sludge enters the box body 1 under the transportation of the auger 17, and falls into the vibration plate 3 from the No. 2 discharge port 9;

[0075] Then the staff controls the motor 6 and the heating device 2 to start through the controller. At this time, the heating device 2 heats and dries the sludge. The sludge generates a large amount of humid hot air during the heating process. The humid hot air flows out from the air outlet 20 and enters the cavity 18 on the heat pipe 16 through the air inlet pipe 21. The humid hot air entering the cavity 18 can increase the temperature in the heat pipe 16, and preliminarily heat the sludge in the heat pipe 16. The less humid hot air generated by the preliminarily heated sludge is discharged from the air pipe 19, which can effectively utilize the heat of the humid hot air generated when the sludge is dried, thereby shortening the drying time of the sludge entering the box 1 in the later stage and shortening the drying time to a certain extent.

[0076] Working principle: When sludge needs to be added to the vibration plate 3, the staff controls the power device to start through the controller, and the power device drives the auger 17 to rotate. The staff first adds the sludge into the heat transfer pipe 16 from the No. 1 feeding port. The sludge enters the box 1 under the transportation of the auger 17, and falls into the vibration plate 3 from the No. 2 discharge port 9;

[0077] Then the staff controls the motor 6 and the heating device 2 to start through the controller, the output shaft of the motor 6 rotates to drive the No. 1 pulley 45 to rotate, the No. 1 pulley 45 rotates through the belt transmission to drive the No. 2 pulley 46 to rotate, and the No. 2 pulley 46 rotates to drive the hinged rod 43 to rotate, and by setting the hinged rod 43 to be "Z"-shaped, when the hinged rod 43 rotates, it drives the sleeve 41 connected to it through the ball hinge to move up and down on the fixed rod 42 while performing reciprocating rotation, so that the sludge in the vibration plate 3 can be continuously shaken;

[0078] At the same time, the output shaft of the motor 6 rotates to drive the bidirectional lead screw to rotate, and the bidirectional lead screw rotates to drive the push cylinder 52 to make a reciprocating linear motion. When the push cylinder 52 makes a reciprocating linear motion, the No. 1 connecting rod 53 drives the No. 2 connecting rod 54 to make a reciprocating linear motion. The No. 2 connecting rod 54 drives multiple "J" rods to make a reciprocating linear motion. When the "J"-shaped rod 55 makes a reciprocating linear motion, it can repeatedly turn over the sludge in the vibration plate 3;

[0079] When the sludge in the vibration plate 3 is dried, the staff controls the electric control valve 10 to open through the controller. The dried sludge can be discharged from the discharge port 9 along the slope of the surface of the vibration plate 3 by its own weight, and enter the storage box 11 through the guide pipe 12 for collection.

[0080] In summary, the basic principles and effects of the present invention are described in detail; however, the scope of protection of the present invention is not limited to the various limitations of the above-mentioned embodiments. Based on the spirit and scope of the present invention, the present invention will also have various corresponding changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected. The scope of protection of the present invention is determined by the attached claims and their equivalents.

Claims

1. A sludge multi-stage heat recovery drying device, comprising a housing (1) and a heating device (2) arranged inside the housing (1), characterized in that: Also includes: A vibration plate (3) for containing sludge is installed in the box (1) and is located on one side of the heating device (2); a transmission assembly (4) for driving the vibration plate (3) to move up and down and to rotate and reciprocate is provided on one side of the vibration plate (3); a mud turning assembly (5) for turning over the sludge in the vibration plate (3) is installed above the vibration plate (3); and a motor (6) for providing power to the transmission assembly (4) and the mud turning assembly (5) is fixedly connected on the inner surface of the box (1) and located on one side of the mud turning assembly (5); The transmission assembly (4) comprises: A sleeve (41), the upper surface of the sleeve (41) being fixedly connected to the lower surface of the vibration plate (3); A fixing rod (42), wherein the fixing rod (42) is disposed inside the sleeve (41) and is slidably connected to the sleeve (41); A hinge rod (43), wherein the hinge rod (43) is arranged on one side of the fixed rod (42) and one end of the hinge rod is ball-jointed with the sleeve (41), and the hinge rod (43) is arranged in a Z-shaped structure; A bracket (44), wherein the bracket (44) is slidably connected to the hinge rod (43), and the bracket (44) includes two vertically arranged fixing plates; A first pulley (45), wherein the first pulley (45) is fixedly connected to an output shaft of the motor (6); A second pulley (46), the second pulley (46) is arranged directly below the first pulley (45) and between two fixed plates, the center of the second pulley (46) is slidably connected to the hinge rod (43) through a key, and a belt is connected between the second pulley (46) and the first pulley (45); The mud turning component (5) comprises: A bidirectional screw rod (51), wherein the bidirectional screw rod (51) is fixedly connected to an output shaft of a motor (6) via a coupling; A push cylinder (52), the push cylinder (52) is connected to the bidirectional lead screw (51) by spiral transmission, and a nut matched with the bidirectional lead screw (51) is installed on the push cylinder (52); A first connecting rod (53), the first connecting rod (53) being fixedly connected to an end surface of the push cylinder (52) away from the motor (6); A second connecting rod (54), the second connecting rod (54) being hinged to the free end of the first connecting rod (53), and the second connecting rod (54) being configured in an inverted "L" shape; A "J"-shaped rod (55), wherein a plurality of "J"-shaped rods (55) are provided and arranged side by side, wherein the "J"-shaped rod (55) is fixedly connected to one end of the No. 2 connecting rod (54) away from the No. 1 connecting rod (53), wherein the bent end of the "J"-shaped rod (55) contacts the upper surface of the vibration plate (3), and the bent end of the "J"-shaped rod (55) is configured to be flat.

2. The sludge multi-stage heat recovery and drying equipment according to claim 1 is characterized in that: The upper surface of the second connecting rod (54) is fixedly connected to one end of the spring (7), the free end of the spring (7) is fixedly connected to the slider (8), and the slider (8) is in sliding contact with the top of the box body (1).

3. The sludge multi-stage heat recovery and drying equipment according to claim 1 is characterized in that: The inner surface of the bottom of the vibration plate (3) is arranged in an inclined shape, and a discharge port (9) is provided on the side of the bottom of the vibration plate (3) away from the hinge rod (43), and an electric control valve (10) is installed at the discharge port (9).

4. The sludge multi-stage heat recovery and drying equipment according to claim 3 is characterized by: A material storage box (11) is provided directly below the material discharge port (9) and outside the box body (1), and a flow guide pipe (12) is connected between the material storage box (11) and the material discharge port (9).

5. The sludge multi-stage heat recovery and drying equipment according to claim 1 is characterized in that: A first partition plate (13) is slidably connected below the push cylinder (52), and a second connecting rod (54) passes through the first partition plate (13) and is slidably connected to the first partition plate (13). A second partition plate (24) is fixedly connected below the first partition plate (13), and the other end of the second partition plate (24) is fixedly connected to the box body (1) and the side close to the vibration plate (3) is fixedly connected to the heating device (2).

6. The sludge multi-stage heat recovery and drying equipment according to claim 1 is characterized by: The hinge rod (43) is slidably connected to the second partition plate (24).

7. The sludge multi-stage heat recovery and drying equipment according to claim 1 is characterized by: The surface of the push cylinder (52) is covered with a high-temperature resistant silicone sleeve, and a No. 1 air inlet (14) is provided on the box body (1) and above the No. 1 partition (13), and a No. 2 air inlet (15) is provided on the No. 1 partition (13), and one-way air inlet valves are installed in the No. 1 air inlet (14) and the No. 2 air inlet (15).

8. The sludge multi-stage heat recovery and drying equipment according to claim 1 is characterized by: A heat conducting pipe (16) is passed through the box body (1) and is located above the vibration plate (3); a screw auger (17) is fixedly connected to the heat conducting pipe (16); a cavity (18) is provided on the wall of the heat conducting pipe (16); a plurality of air conducting pipes (19) are passed through the heat conducting pipe (16); one end of the air conducting pipe (19) is communicated with the inside of the heat conducting pipe (16); an air outlet (20) is provided on the box body (1) and is located above the vibration plate (3); the air outlet (20) is connected to one end of an air inlet pipe (21); the other end of the air inlet pipe (21) is communicated with the cavity (18).

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