Multi-stage sludge treatment device

Abstract

The invention discloses a sludge multi-stage treatment device which comprises a stirring and pelletizing mechanism, the stirring and pelletizing mechanism comprises an equipment box, a drying groove is formed in the lower portion of the interior of the equipment box, and a storage groove and a transfer groove are formed in the positions, located on the upper portion of the drying groove, of the two sides of the interior of the equipment box correspondingly. According to the sludge multi-stage treatment device, the stirring and pelletizing mechanism and the drying and overhauling mechanism are combined for use, so that sludge can be pre-stirred with lime powder in a stirring barrel before high-temperature drying, and the sludge is disinfected and dried for the first time by utilizing the reaction generated by contact of the lime powder and water; according to the sludge recycling device, the sludge is conveyed through driving of the air cylinder and cut into small blocks, finally drying and subsequent efficiency are completed through cooperation of the structures, the quality and efficiency of sludge recycling treatment are effectively improved, and the current use requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, and specifically relates to a multi-stage sludge treatment device. Background Art

[0002] Sludge generally refers to the flocculent solid-liquid mixture generated during the sewage treatment process in a sewage treatment plant, mainly from process links such as primary sedimentation tanks and secondary sedimentation tanks. The generated sludge can be reused in other fields after recovery, such as building material preparation, agricultural utilization, and environmental restoration.

[0003] After the existing sludge is generated, it cannot be directly recycled and needs to be treated in multiple stages. The general treatment method is to filter out large solids in the sludge, then dehydrate and solidify it, and then it can be reused. Although the existing sludge drying equipment can achieve the drying purpose, there are still obvious defects in actual use, such as: In general sludge recycling treatment, the filtered sludge is directly sent to the drying equipment for high-temperature drying, and at the same time, it is also to eliminate the eggs and bacteria in the sludge to ensure the safety of subsequent use. However, if most of the bacteria and eggs are to be eliminated, at least 20 minutes of high-temperature drying is required. The existing equipment transports the sludge through a conveyor belt, and there is not enough travel distance inside the equipment for transmission, resulting in the fact that although the sludge is finally solidified, no effective sterilization treatment is carried out. If the residence time of the sludge inside the equipment is extended, the recycling efficiency will be low; Therefore, a multi-stage sludge treatment device that can improve the quality and efficiency of sludge recycling is designed to solve such defects. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a multi-stage sludge treatment device, which solves the problem of low disinfection and sterilization quality during the recycling of existing sludge.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A multi-stage sludge treatment device includes a stirring and granulating mechanism. The stirring and granulating mechanism includes an equipment box. A drying tank is opened at the lower part inside the equipment box. Storage tanks and transfer tanks are respectively opened on both sides inside the equipment box and above the drying tank. The bottom of the inner cavity of the transfer tank is fixedly connected with a hopper frame communicating with the drying tank through an opening. A drying and maintenance mechanism is installed inside the drying tank; The left side of the equipment box is fixedly connected with a recessed long cylinder through an opening, and the right end of the recessed long cylinder sequentially penetrates the storage trough and the hopper frame and extends to the inner side of the hopper frame; the left side of the recessed long cylinder is rotatably connected with a transverse rod through an opening, and the right end of the transverse rod sequentially penetrates the transverse rod and the equipment box and extends to the right side of the equipment box; an auger blade is fixedly connected to the surface of the transverse rod and located on the inner side of the recessed long cylinder; a plurality of circular holes are opened at the right end of the recessed long cylinder; a cutting blade used in conjunction with the circular holes is fixedly connected to the surface of the transverse rod and located inside the transfer trough, and the cutting blade fits with the right end of the recessed long cylinder.

[0006] Preferably, the left side of the equipment box is rotatably connected to a vertical rotating rod through a bearing member, and the surface of the vertical rotating rod and the left end of the horizontal rotating rod are fixedly connected with mutually meshing bevel gears, and the right side of the inner cavity of the drying tank is rotatably connected to a polygonal rotating rod through an opening, and the polygonal rotating rod and the horizontal rotating rod are connected by a first belt and a first pulley transmission, and a lifting port is opened at the bottom of the inner cavity of the drying tank, and electric heating rods are fixedly installed on the front and rear sides of the bottom of the inner cavity of the equipment box, and a plurality of electric heating rods are provided, and a mixing drum used in conjunction with a storage tank is fixedly installed on the left side of the top of the equipment box.

[0007] Preferably, the left side of the top of the equipment box is fixedly connected to a top plate frame via a bracket, and the top end of the vertical rotation rod is rotatably connected to the bottom of the top plate frame via a bearing member, a second pulley is fixedly connected to the surface of the vertical rotation rod, and the right side of the bottom of the top plate frame is rotatably connected to an inner polygonal pulley via a bearing member, and the second pulley and the inner polygonal pulley are connected via a second belt transmission.

[0008] Preferably, the top of the top plate frame is fixedly connected to a material storage frame via a fixed plate, the bottom of the material storage frame is fixedly connected to a material discharge cone via an opening, and a plurality of material discharge cones are provided, and a limit rod is slidably installed on the bottom of the inner cavity of the material storage frame via the opening, and a bent plate is fixedly connected between the top ends of two limit rods and located on the inner side of the material storage frame, the bottom of the bent plate is fixedly connected to a sealing block used in conjunction with the material discharge cone via a bracket, and the sealing block is located on the inner side of the material discharge cone, and the bottom of the limit rod is fixedly connected to a first semicircular block via a fixed plate.

[0009] Preferably, a conical tray is arranged inside the mixing drum. The top of the conical tray is rotatably connected with a hexagonal rotating rod through a bearing member. Stirring blades are fixedly connected to the surface of the hexagonal rotating rod. A second semi-circular block matched with the first semi-circular block is fixedly connected to the lower part of the surface of the hexagonal rotating rod through a fixing plate. A plurality of stirring blades are provided. The top end of the hexagonal rotating rod penetrates through an internal multi-sided pulley and a top plate frame and extends to the upper part of the mixing drum. The hexagonal rotating rod is slidably connected with the internal multi-sided pulley and the top plate frame. The top end of the hexagonal rotating rod is fixedly connected with a motor through a coupling. Support rods matched with U-shaped pressing plates are fixedly connected to both sides of the front and rear surfaces of the equipment box.

[0010] Preferably, an annular bracket is fixedly connected to the surface of the motor, and a feeding guide frame is fixedly connected to the top of the mixing drum.

[0011] Preferably, the drying and maintenance mechanism includes a cylinder, and the cylinder is fixedly installed on the right side of the equipment box through a fixing plate. The bottom end of the cylinder is fixedly connected with a U-shaped pressing plate. Long pull rods are fixedly connected to the front side and the rear side of the top of the U-shaped pressing plate through openings. The top ends of the long pull rods are fixedly connected to the bottom of the annular bracket.

[0012] Preferably, a sealing bottom plate is arranged inside the lifting opening. Return-shaped frames are fixedly connected to the front part and the rear part of the left side of the bottom of the sealing bottom plate. A first rotating rod is slidably connected inside the return-shaped frames. The bottom ends of the two long pull rods are rotatably connected to both ends of the first rotating rod through bearing members. A second rotating rod is rotatably connected to the right side of the bottom of the sealing bottom plate through a bearing member. Short pull rods are fixedly connected to both ends of the second rotating rod through fixing blocks. The top ends of the short pull rods are fixedly connected with a sliding sleeve plate, and the sliding sleeve plate is slidably installed on the surface of the long pull rod.

[0013] Preferably, first bearing seats are fixedly connected to both sides of the top of the sealing bottom plate. A lower mesh frame is rotatably connected inside the first bearing seats. Second bearing seats are fixedly connected to both sides between the front part and the rear part of the inner cavity of the drying tank through brackets. An upper mesh frame matched with the lower mesh frame is rotatably connected inside the second bearing seats. Semi-angle frames matched with multi-sided rotating rods are fixedly connected to the right ends of the lower mesh frame and the upper mesh frame.

[0014] Preferably, a feeding port matched with a hopper frame is arranged at the top of the upper mesh frame, and a blocking and pushing block is fixedly connected to the surface of the long pull rod.

[0015] The present invention provides a sludge multi-stage treatment device. Compared with the prior art, the following beneficial effects are achieved: (1) The multi-stage sludge treatment device combines the stirring and granulating mechanism and the drying and maintenance mechanism to pre-mix the sludge with lime powder inside the stirring drum before high-temperature drying. The sludge is sterilized and dried by the reaction between lime powder and water. The sludge is then transported and cut into small pieces by the drive of the cylinder. Finally, the drying and subsequent efficiency are completed by the coordination between the structures, which effectively improves the quality and efficiency of sludge recovery and treatment and satisfies the current use.

[0016] (2) The sludge multi-stage treatment device is used by installing a storage frame on the top of the top plate frame and a plurality of discharge cones on the bottom of the storage frame, and is used in combination with a first semicircular block, a second semicircular block and a blocking block. The arrangement of these structures can allow the second semicircular block to indirectly and continuously push up the first semicircular block while the stirring blade is stirring the sludge, so that the blocking block can be opened to allow a small amount of lime powder to be indirectly sprinkled into the sludge and then fully mixed with the sludge, thereby achieving the purpose of pre-sterilization and drying, while ensuring that the subsequent drying time is reduced, the drying efficiency and sterilization quality are also improved.

[0017] (3) The multi-stage sludge treatment device is used by opening a circular outlet hole at the right end of the notched long cylinder and using a cutting blade. The arrangement of these structures enables the auger blades to transfer the sludge and extrude it into long strips through the circular outlet hole, and then directly cut it into small pieces by the cutting blade, thereby increasing the drying area during drying and improving the drying efficiency. It is also convenient for loading and use after the subsequent drying is completed.

[0018] (4) The sludge multi-stage treatment device is used by installing a lower screen frame and an upper screen frame inside the drying tank, and using them in combination with a circular frame, a first rotating rod and a second rotating rod. The arrangement of these structures can use the cylinder to start after the sludge is mixed and dried, so that the sealed bottom plate can support the lower screen frame to descend, and at the same time, the sludge inside the mixing drum can be transferred to the inside of the storage tank. The lower screen frame after descending is unloaded by rotating and tilting the second rotating rod. The opened lower screen frame and upper screen frame can be conveniently maintained and repaired by the staff, which is convenient for use. At the same time, after the sealed bottom plate rises, the half-angle frame can be closed and docked with the multi-angle rotating rod, ensuring the stability during subsequent operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a rear view of the stirring and pelletizing mechanism structure of the present invention; Figure 3 It is a cross-sectional view of the equipment box structure of the present invention; Figure 4Schematic diagram of the second semi-circular block, annular bracket and motor structure of the present invention; Figure 5 Schematic diagram of the top plate frame, second pulley and internal multi-angle pulley structure of the present invention; Figure 6 Cross-sectional view of the storage frame structure of the present invention; Figure 7 Schematic diagram of the conical tray, hexagonal rotating rod and stirring blade structure of the present invention; Figure 8 Side view of the internal structure of the equipment box of the present invention; Figure 9 For the present invention Figure 8 Partial enlarged view at position A in; Figure 10 Schematic diagram of the drying and maintenance mechanism structure of the present invention; Figure 11 Schematic diagram of the semi-angle frame, long pull rod and thrust block structure of the present invention; Figure 12 Bottom view of the sealed bottom plate, return frame and first rotating rod structure of the present invention; Figure 13 Schematic diagram of the upper net frame, feeding port and semi-angle frame structure of the present invention.

[0020] In the figure: 1. Stirring and pelletizing mechanism; 2. Drying and maintenance mechanism; 101. Equipment box; 102. Drying tank; 103. Storage tank; 104. Transfer tank; 105. Hopper frame; 106. Notched long cylinder; 107. Horizontal rotating rod; 108. Screw blade; 109. Circular outlet hole; 110. Cutting blade; 111. Vertical rotating rod; 112. Bevel gear; 113. Multi-angle rotating rod; 114. First belt; 115. First pulley; 116. Stirring cylinder; 117. Lifting port; 118. Electric heating rod; 119. Top plate frame; 120. Second pulley; 121. Internal multi-angle pulley; 122. Second belt; 123. Storage frame; 124. Feeding cone; 125. Limit rod; 126. Bent plate; 127. Sealing block; 128. First semi-circular block; 129. Conical tray; 130. Hexagonal rotating rod; 131. Stirring blade; 132. Second semi-circular block; 133. Annular bracket; 134. Guide frame; 135. Motor; 136. Supporting rod; 201. Cylinder; 202. U-shaped pressing plate; 203. Sealed bottom plate; 204. Return frame; 205. First rotating rod; 206. Second rotating rod; 207. Short pull rod; 208. Sliding sleeve plate; 209. First bearing seat; 210. Second bearing seat; 211. Lower net frame; 212. Upper net frame; 213. Feeding port; 214. Semi-angle frame; 215. Long pull rod; 216. Thrust block. Detailed implementation mode

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1-13 , the present invention provides a technical solution: a multi-stage sludge treatment device, including a stirring and granulating mechanism 1; Please refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 , which shows the overall structure of the stirring and granulating mechanism 1. The stirring and granulating mechanism 1 includes an equipment box 101. A drying tank 102 is opened at the lower part inside the equipment box 101. Storage tanks 103 and transfer tanks 104 are respectively opened on both sides inside the equipment box 101 and above the drying tank 102. The bottom of the inner cavity of the transfer tank 104 is fixedly connected with a hopper frame 105 communicating with the drying tank 102 through an opening. A drying and maintenance mechanism 2 is installed inside the drying tank 102; On the left side of the equipment box 101, a notch long tube 106 is fixedly connected by opening an opening. On the top of the notch long tube 106 and inside the storage tank 103, a notch for sludge feeding is opened. And the right end of the notch long tube 106 sequentially penetrates through the storage tank 103 and the hopper frame 105 and extends to the inside of the hopper frame 105. On the left side of the notch long tube 106, a horizontal rotating rod 107 is rotatably connected by opening an opening. And the right end of the horizontal rotating rod 107 sequentially penetrates through the horizontal rotating rod 107 and the equipment box 101 and extends to the right side of the equipment box 101. On the surface of the horizontal rotating rod 107 and inside the notch long tube 106, an auger blade 108 is fixedly connected. On the right end of the notch long tube 106, a number of circular outlet holes 109 are opened. On the surface of the horizontal rotating rod 107 and inside the transfer groove 104, a cutting blade 110 that is used in cooperation with the circular outlet holes 109 is fixedly connected. And the cutting blade 110 is in contact with the right end of the notch long tube 106. On the left side of the equipment box 101, a vertical rotating rod 111 is rotatably connected by a bearing member. On the surface of the vertical rotating rod 111 and the left end of the horizontal rotating rod 107, bevel gears 112 that mesh with each other are fixedly connected. On the right side of the inner cavity of the drying tank 102, a multi-sided rotating rod 113 is rotatably connected by opening an opening. Between the multi-sided rotating rod 113 and the horizontal rotating rod 107, a first belt 114 and a first belt pulley 115 are used for transmission connection. On the bottom of the inner cavity of the drying tank 102, a lifting opening 117 is opened. On the front side and the rear part of the bottom of the inner cavity of the equipment box 101, electric heating rods 118 are fixedly installed. And a number of electric heating rods 118 are provided. On the left side of the top of the equipment box 101, a mixing cylinder 116 that is used in cooperation with the storage tank 103 is fixedly installed. On the left side of the top of the equipment box 101, a top plate frame 119 is fixedly connected by a bracket. And the top end of the vertical rotating rod 111 is rotatably connected to the bottom of the top plate frame 119 by a bearing member. On the surface of the vertical rotating rod 111, a second belt pulley 120 is fixedly connected. On the right side of the bottom of the top plate frame 119, an inner multi-sided belt pulley 121 is rotatably connected by a bearing member. Between the second belt pulley 120 and the inner multi-sided belt pulley 121, a second belt 122 is used for transmission connection. On the top of the top plate frame 119, a storage frame 123 is fixedly connected by a fixing plate. On the bottom of the storage frame 123, a feeding cone cylinder 124 is fixedly connected by opening an opening. And a number of feeding cone cylinders 124 are provided. Inside the storage frame 123, a limiting rod 125 is slidably installed by opening an opening at the bottom. Between the top ends of the two limiting rods 125 and inside the storage frame 123, a bent plate 126 is fixedly connected. On the bottom of the bent plate 126, a blocking block 127 that is used in cooperation with the feeding cone cylinder 124 is fixedly connected by a bracket. The blocking block 127 is conical and made of hard rubber material. And the blocking block 127 is located inside the feeding cone cylinder 124. On the bottom of the limiting rod 125, a first semi-circular block 128 is fixedly connected by a fixing plate. Inside the mixing cylinder 116, a conical tray 129 is provided. On the top of the conical tray 129, a hexagonal rotating rod 130 is rotatably connected by a bearing member. On the surface of the hexagonal rotating rod 130, stirring blades 131 are fixedly connected.The lower part of the surface of the hexagonal rotating rod 130 is fixedly connected with a second semi-circular block 132 that is used in cooperation with the first semi-circular block 128 through a fixing plate, and a number of stirring blades 131 are provided. The top end of the hexagonal rotating rod 130 penetrates through the inner multi-sided pulley 121 and the top plate frame 119 and extends to the upper part of the mixing cylinder 116, and the hexagonal rotating rod 130 is slidably connected with the inner multi-sided pulley 121 and the top plate frame 119. The top end of the hexagonal rotating rod 130 is fixedly connected with a motor 135 through a coupling. The motor 135 is a servo motor. Support rods 136 that are used in cooperation with the U-shaped pressing plate 202 are fixedly connected to both sides of the front and rear surfaces of the equipment box 101. An annular bracket 133 is fixedly connected to the surface of the motor 135. A material guiding frame 134 is fixedly connected to the top of the mixing cylinder 116.,

[0023] Before use, first place quicklime inside the storage bin 123, then use the material guiding bin 134 to pour the sludge into the interior of the mixing drum 116. Subsequently, start the motor 135 and several electric heating rods 118. The startup of the electric heating rods 118 raises the temperature inside the drying tank 102. When the motor 135 starts, it drives the mixing blades 131 and the second semi-circular block 132 to rotate by means of the hexagonal rotating rod 130. The rotating mixing blades 131 stir the sludge. At the same time, each time the second semi-circular block 132 rotates and contacts the first semi-circular block 128, the first semi-circular block 128 will be lifted by the second semi-circular block 132. And under the limitation of the limiting rod 125, the first semi-circular block 128 drives the bent plate 126 and several blocking blocks 127 to rise simultaneously and no longer block the blanking cone 124. Then, a small amount of quicklime spills from the bottom of the blanking cone 124 into the sludge. After the quicklime contacts the sludge, a reaction occurs to generate a relatively high temperature. In this step, the quicklime is used to disinfect the sludge, and at the same time, after the exothermic reaction with the sludge, part of the moisture evaporates, making the sludge in a solid state. After completing the sterilization and stirring, start the cylinder 201 to make the U-shaped pressing plate 202 drive the motor 135, the hexagonal rotating rod 130, and the conical tray 129 to descend as a whole into the interior of the storage tank 103 through the long pull rod 215. During this process, the internal multi-angle pulley 121 is limited by the top plate frame 119 and will not be driven. After the conical tray 129 is located inside the storage tank 103, the sludge inside the mixing drum 116 falls from the bottom into the interior of the storage tank 103. Then, the cylinder 201 starts to drive the conical tray 129 to rise and return to the inside of the mixing drum 116 again. Then, continue to pour the sludge into the inside of the mixing drum 116 and start the motor 135 to stir. When the hexagonal rotating rod 130 rotates, it drives the cross rotating rod 107 and the auger blades 108 to rotate synchronously by means of the transmission of the second pulley 120, the internal multi-angle pulley 121, the top plate frame 119, the vertical rotating rod 111, and the bevel gear 112. The rotating auger blades 108 transport the sludge inside the storage tank 103 by means of the notch long cylinder 106. When the sludge is transported to the rightmost side of the notch long cylinder 106, it is extruded from the circular outlet hole 109 by the extrusion force. Then, the cross rotating rod 107 drives the rotating cutting blade 110 to cut it into blocks, and then the mud blocks fall into the interior of the hopper frame 105.

[0024] Please refer to Figure 10 、 Figure 11 、 Figure 12 and Figure 13, which shows the overall structure of the drying and maintenance mechanism 2. The drying and maintenance mechanism 2 includes a cylinder 201, and the cylinder 201 is fixedly installed on the right side of the equipment box 101 through a fixed plate. The bottom end of the cylinder 201 is fixedly connected with a U-shaped pressing plate 202. The front and rear sides of the top of the U-shaped pressing plate 202 are fixedly connected with long pull rods 215 through openings, and the top ends of the long pull rods 215 are fixedly connected with the bottom of the annular bracket 133. A sealing bottom plate 203 is arranged inside the lifting opening 117. The front and rear parts of the left side of the bottom of the sealing bottom plate 203 are fixedly connected with U-shaped frames 204. The inside of the U-shaped frame 204 is slidably connected with a first rotating rod 205. The bottom ends of the two long pull rods 215 are rotatably connected to both ends of the first rotating rod 205 through bearing parts. The right side of the bottom of the sealing bottom plate 203 is rotatably connected with a second rotating rod 206 through a bearing part. Both ends of the second rotating rod 206 are fixedly connected with short pull rods 207 through fixing blocks. The top ends of the short pull rods 207 are fixedly connected with a sliding sleeve plate 208, and the sliding sleeve plate 208 is slidably installed on the surface of the long pull rod 215. Both sides of the top of the sealing bottom plate 203 are fixedly connected with first bearing seats 209. The inside of the first bearing seat 209 is rotatably connected with a lower mesh frame 211. Both sides between the front and rear parts of the inner cavity of the drying tank 102 are fixedly connected with second bearing seats 210 through brackets. The inside of the second bearing seat 210 is rotatably connected with an upper mesh frame 212 that is matched with the lower mesh frame 211. The right ends of the lower mesh frame 211 and the upper mesh frame 212 are fixedly connected with half-angle frames 214 that are matched with the multi-angle rotating rod 113. The top of the upper mesh frame 212 is provided with a feeding port 213 that is matched with the hopper frame 105. A thrust-blocking block 216 is fixedly connected to the surface of the long pull rod 215.

[0025] Meanwhile, the multi-angle rotating rod 113 drives the overall rotation of the lower screen frame 211 and the upper screen frame 212 under the drive of the first belt 114 and the first pulley 115. Each time the feeding port 213 rotates to the top and docks with the hopper frame 105, the mud blocks inside the hopper frame 105 will fall to the inner sides of the lower screen frame 211 and the upper screen frame 212. At the same time, the electric heating rod 118 performs high-temperature drying, and the rotating lower screen frame 211 and upper screen frame 212 drive the mud blocks to tumble for uniform drying and dehydration. After the dehydration is completed, the stirring in the stirring cylinder 116 is also completed. Subsequently, the air cylinder 201 is activated to push and drive the long pull rod 215 to descend. The descent of the long pull rod 215 drives the overall descent of the sealing bottom plate 203 by means of the support of the anti-push block 216 on the U-shaped pressing plate 202. The overall descent of the sealing bottom plate 203 separates the lower screen frame 211 from the upper screen frame 212, and at the same time, the two half-angle frames 214 also separate and disengage from the multi-angle rotating rod 113. When the lower screen frame 211 is completely located at the bottom of the equipment box 101, at this time, the sliding sleeve plate 208 rests on the top of the supporting rod 136. At this time, the short pull rod 207 cannot descend, but the long pull rod 215 continues to descend under the sliding action of the anti-push block 216. At this time, the long pull rod 215 pushes the first rotating rod 205 to slide inside the return-shaped frame 204 and drives the sealing bottom plate 203 to rotate and tilt under the action of the second rotating rod 206. After the lower screen frame 211 is tilted, the mud blocks inside slide down for discharging. After the discharging is completed, the air cylinder 201 is restarted to let the U-shaped pressing plate 202 pull the long pull rod 215 to rise. The rise of the long pull rod 215 causes the first rotating rod 205 to drive the sealing bottom plate 203 to flip into a balanced state under the guidance of the return-shaped frame 204. At the same time, the anti-push block 216 also contacts the bottom of the sliding sleeve plate 208. As the long pull rod 215 continues to rise, the anti-push block 216 will support the sliding sleeve plate 208 and pull the short pull rod 207 and the entire sealing bottom plate 203 to rise synchronously. After the air cylinder 201 is completely retracted, the sealing bottom plate 203 is hermetically fitted with the lifting port 117. At the same time, the lower screen frame 211 and the upper screen frame 212 are also docked. The two half-angle frames 214 are combined into a whole and wrap the multi-angle rotating rod 113. Subsequently, the motor 135 is started to perform sludge transmission and cutting again.

[0026] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. A sludge multi-stage treatment device, comprising a stirring and pelletizing mechanism (1), characterized in that: The stirring and pelletizing mechanism (1) comprises an equipment box (101), a drying tank (102) is provided at the lower part of the equipment box (101), a material storage tank (103) and a transfer tank (104) are provided on both sides of the equipment box (101) and located above the drying tank (102), a hopper frame (105) connected to the drying tank (102) is fixedly connected to the bottom of the inner cavity of the transfer tank (104) through an opening, and a drying inspection mechanism (2) is installed on the inner side of the drying tank (102); The left side of the equipment box (101) is fixedly connected to a notched long tube (106) through an opening, and the right end of the notched long tube (106) sequentially penetrates the material storage tank (103) and the hopper frame (105) and extends to the inner side of the hopper frame (105), and the left side of the notched long tube (106) is rotatably connected to a transverse rod (107) through an opening, and the right end of the transverse rod (107) sequentially penetrates the transverse rod (107) and the equipment box (101) and extends to the equipment box (101). 1), a screw blade (108) is fixedly connected to the surface of the transverse rod (107) and located inside the concave long tube (106), a plurality of circular holes (109) are opened at the right end of the concave long tube (106), a cutting blade (110) used in conjunction with the circular holes (109) is fixedly connected to the surface of the transverse rod (107) and located inside the transfer trough (104), and the cutting blade (110) is in contact with the right end of the concave long tube (106).

2. A sludge multi-stage treatment device according to claim 1, characterized in that: The left side of the equipment box (101) is rotatably connected to a vertical rotating rod (111) through a bearing member, and the surface of the vertical rotating rod (111) and the left end of the horizontal rotating rod (107) are fixedly connected to mutually meshing bevel gears (112). The right side of the inner cavity of the drying tank (102) is rotatably connected to a polygonal rotating rod (113) through an opening, and the polygonal rotating rod (113) and the horizontal rotating rod (107) are transmission-connected through a first belt (114) and a first pulley (115). The bottom of the inner cavity of the drying tank (102) is provided with a lifting opening (117). The front and rear sides of the bottom of the inner cavity of the equipment box (101) are fixedly installed with electric heating rods (118), and a plurality of electric heating rods (118) are provided. A mixing drum (116) used in conjunction with the material storage tank (103) is fixedly installed on the left side of the top of the equipment box (101).

3. A sludge multi-stage treatment device according to claim 2, characterized in that: The left side of the top of the equipment box (101) is fixedly connected to a top plate frame (119) via a bracket, and the top end of the vertical rotation rod (111) is rotatably connected to the bottom of the top plate frame (119) via a bearing member, a second belt pulley (120) is fixedly connected to the surface of the vertical rotation rod (111), and the right side of the bottom of the top plate frame (119) is rotatably connected to an inner polygonal belt pulley (121) via a bearing member, and the second belt pulley (120) and the inner polygonal belt pulley (121) are connected in transmission via a second belt (122).

4. A sludge multi-stage treatment device according to claim 3, characterized in that: The top of the top plate frame (119) is fixedly connected to a material storage frame (123) via a fixing plate, the bottom of the material storage frame (123) is fixedly connected to a material discharge cone (124) via an opening, and a plurality of material discharge cones (124) are provided, a limiting rod (125) is slidably installed at the bottom of the inner cavity of the material storage frame (123) via an opening, a bent plate (126) is fixedly connected between the top ends of the two limiting rods (125) and located on the inner side of the material storage frame (123), the bottom of the bent plate (126) is fixedly connected to a blocking block (127) used in conjunction with the material discharge cone (124) via a bracket, and the blocking block (127) is located on the inner side of the material discharge cone (124), and the bottom of the limiting rod (125) is fixedly connected to a first semicircular block (128) via a fixing plate.

5. A sludge multi-stage treatment device according to claim 4, characterized in that: A conical tray (129) is arranged inside the mixing drum (116), the top of the conical tray (129) is rotatably connected to a hexagonal rotating rod (130) via a bearing, a stirring blade (131) is fixedly connected to the surface of the hexagonal rotating rod (130), a second semicircular block (132) used in conjunction with the first semicircular block (128) is fixedly connected to the lower part of the surface of the hexagonal rotating rod (130) via a fixing plate, and a plurality of stirring blades (131) are arranged. The top end of the hexagonal rotating rod (130) passes through the inner polygonal belt pulley (121) and the top plate frame (119) and extends to the upper part of the mixing drum (116), and the hexagonal rotating rod (130) is slidably connected to the inner polygonal belt pulley (121) and the top plate frame (119), and the top end of the hexagonal rotating rod (130) is fixedly connected to the motor (135) through a coupling, and the surface and both sides of the rear of the equipment box (101) are fixedly connected to support rods (136) used in conjunction with the U-shaped pressure plate (202).

6. A sludge multi-stage treatment device according to claim 5, characterized in that: An annular bracket (133) is fixedly connected to the surface of the motor (135), and a material guide frame (134) is fixedly connected to the top of the mixing drum (116).

7. A sludge multi-stage treatment device according to claim 6, characterized in that: The drying and maintenance mechanism (2) comprises a cylinder (201), and the cylinder (201) is fixedly installed on the right side of the equipment box (101) through a fixing plate, and the bottom end of the cylinder (201) is fixedly connected to a U-shaped pressing plate (202), and the front and rear sides of the top of the U-shaped pressing plate (202) are fixedly connected to a long pull rod (215) through an opening, and the top end of the long pull rod (215) is fixedly connected to the bottom of the annular bracket (133).

8. A sludge multi-stage treatment device according to claim 7, characterized in that: A sealing bottom plate (203) is provided on the inner side of the lifting port (117), and the front and rear parts of the left side of the bottom of the sealing bottom plate (203) are fixedly connected with a return frame (204), and the inner side of the return frame (204) is slidably connected with a first rotating rod (205), and the bottom ends of the two long pull rods (215) are rotatably connected to the two ends of the first rotating rod (205) through bearing components, and the right side of the bottom of the sealing bottom plate (203) is rotatably connected with a second rotating rod (206) through a bearing component, and the two ends of the second rotating rod (206) are fixedly connected with short pull rods (207) through fixed blocks, and the top end of the short pull rod (207) is fixedly connected with a sliding sleeve plate (208), and the sliding sleeve plate (208) is slidably installed on the surface of the long pull rod (215).

9. A sludge multi-stage treatment device according to claim 8, characterized in that: Both sides of the top of the sealing bottom plate (203) are fixedly connected with a first bearing seat (209), the inner side of the first bearing seat (209) is rotatably connected with a lower screen frame (211), both sides between the front and rear parts of the inner cavity of the drying tank (102) are fixedly connected with a second bearing seat (210) through a bracket, the inner side of the second bearing seat (210) is rotatably connected with an upper screen frame (212) used in conjunction with the lower screen frame (211), and the right ends of the lower screen frame (211) and the upper screen frame (212) are fixedly connected with a half-angle frame (214) used in conjunction with the polygonal rotating rod (113).

10. A sludge multi-stage treatment device according to claim 9, characterized in that: The top of the net frame (212) is provided with a feeding port (213) used in conjunction with the hopper frame (105), and a push-block (216) is fixedly connected to the surface of the long pull rod (215).

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