A pretreatment device for environmentally friendly sludge dewatering equipment

Abstract

The invention relates to the technical field of sludge dewatering equipment and discloses a pretreatment device for environmentally friendly sludge dewatering equipment, comprising a stirring mechanism, wherein the stirring mechanism also includes a tank body, an annular fixed block is fixedly sleeved on the outer wall of the tank body, and a plurality of supporting legs are fixedly connected to the bottom of the tank body; when the control gear drives the rotating rod second to rotate, the rotating rod second can drive the reciprocating screw rod to rotate, and the reciprocating screw rod can drive the moving plate to move up and down after rotating, and when the moving plate moves upward, it is restricted by the fixed block and the shape of the slide plate, and the moving plate drives the slide plate to move upward after the moving plate moves upward, and the stretching spring forces the slide plate to be in close contact with the outer wall of the fixed block after the slide plate moves upward, and at this time, the distance between the slide plate and the moving plate becomes larger and larger, so that air can enter the bottom of the moving plate through the gap between the slide plate and the moving plate, and is restricted by the fixed block so that the slide plate is in close contact with the moving plate, and when the moving plate continues to move downward, the air at the bottom of the moving plate is squeezed.

Description

Technical Field

[0001] The invention relates to the technical field of sludge dewatering equipment, in particular to pretreatment equipment for environmentally friendly sludge dewatering equipment. Background Art

[0002] Sludge dewatering is a sludge treatment method that removes moisture from flowing primary, concentrated or digested sludge and converts it into semi-solid or solid mud blocks. After dehydration, the moisture content of the sludge can be reduced to 55% to 80%, depending on the properties of the sludge and sediment and the efficiency of the dewatering equipment. Further dehydration of the sludge is called sludge drying. The moisture content of dried sludge is less than 10%. The main methods of dehydration are natural drying, mechanical dehydration and granulation. Natural drying and mechanical dehydration are suitable for sewage sludge, and granulation is suitable for coagulated and precipitated sludge. Before dehydration, the sludge will be mixed with impurities and floating objects, which need to be removed.

[0003] When sludge is dehydrated, floating objects may be mixed in the sludge. Organic matter, grease and solid particles contained in the floating objects may adhere to the dehydrated products, thereby affecting the dehydration quality of the sludge. In view of the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a pretreatment device for environmentally friendly sludge dewatering equipment, including a stirring mechanism, the stirring mechanism also includes a tank body, an annular fixing block is fixedly sleeved on the outer wall of the tank body, and a plurality of supporting legs are fixedly connected to the bottom of the tank body;

[0005] The filter mechanism comprises a filter groove on the top of the annular fixed block, and a plurality of rectangular filter grooves are formed on the side wall of the tank body, and the plurality of rectangular filter grooves extend into the filter groove;

[0006] In the air intake mechanism, a plurality of fixing plates are fixedly connected to the outer wall of the annular fixing block, a second rotating rod is rotatably connected to the top of the fixing plate, and a control gear is fixedly sleeved on the outer wall of the second rotating rod.

[0007] Preferably, the stirring mechanism also includes a support sleeve fixedly connected to the bottom of the tank body, a driving motor is fixedly connected to the inner wall of the support sleeve, a rotating shaft is fixedly connected to the output shaft of the driving motor, the top of the rotating shaft extends into the tank body and is rotatably connected to the tank body, a rotating sleeve on the outer wall of the rotating shaft is provided with a fixed bevel gear, and the bottom of the fixed bevel gear is fixedly connected to the bottom inner wall of the tank body. When the sludge needs to be dehydrated, the sludge is first poured into the tank body, and then the driving motor is started. The driving motor drives the rotating shaft to rotate, and the rotation of the rotating shaft can provide power for the stirring mechanism to operate.

[0008] Preferably, the stirring mechanism also includes a plurality of connecting blocks 1 fixedly connected to the outer wall of the rotating shaft, a rotating rod 1 is rotatably connected to the side wall of the connecting block 1, a transmission bevel gear is fixedly sleeved on the outer wall of the rotating rod 1, the transmission bevel gear is meshed with the fixed bevel gear, and the rotating shaft drives the rotating rod 1 to rotate after the rotation, and the revolution of the rotating rod 1 drives the transmission bevel gear to rotate, and the transmission bevel gear is meshed with the fixed bevel gear, and then the transmission bevel gear drives the rotating rod 1 to rotate, so that the floating objects in the sludge can be separated from the sludge.

[0009] Preferably, the stirring mechanism also includes a stirring blade 1 fixedly sleeved on the outer wall of the rotating rod 1, a plurality of through grooves are provided on the top of the stirring blade 1, and the plurality of through grooves are distributed in an array, a plurality of annular mounting blocks are fixedly sleeved on the outer wall of the rotating shaft, and stirring blades 2 are respectively fixedly connected to the outer walls of the plurality of annular mounting blocks, and the rotating rod 1 rotates to drive the stirring blade 1 to rotate, and the stirring blade 1 can stir the sludge settled at the bottom of the tank body when it rotates, so that the floating objects in the sludge can be separated from the sludge, and by providing the through grooves, the resistance of the stirring blade 1 can be reduced when the stirring blade 1 rotates, and the sludge can be stirred, which can reduce the risk of uneven dehydration or regional solid accumulation and prevent the occurrence of sludge agglomeration in the tank body.

[0010] Preferably, the filtering mechanism also includes a circular rod slidably connected to the inner wall of the bottom of the tank body, a protrusion is fixedly connected to the side wall of the stirring blade 1, and a connecting block 2 is fixedly connected to the top of the circular rod. The outer wall of the connecting block 2 is in contact with the inner wall of the tank body, and the top of the connecting block 2 is fixedly connected to an annular plate. When the stirring blade 1 rotates, the protrusion on the stirring blade 1 will also rotate. The protrusion will contact the circular rod during the rotation, and then the circular rod and the connecting block 2 will rotate due to the thrust of the protrusion. After the sludge is affected by the centrifugal force and the vortex, it will be adsorbed on the inner wall of the tank body. After the connecting block 2 rotates, the sludge adsorbed on the inner wall of the tank body can be scraped off.

[0011] Preferably, the filtering mechanism also includes an annular slide groove provided on the side wall of the rectangular filter trough, a plurality of connecting rods are fixedly connected to the side wall of the annular plate, and pulleys are rotatably sleeved on the outer walls of the plurality of connecting rods, and the plurality of pulleys extend to the annular slide groove and are slidably connected to the annular slide groove. When the connecting block 2 rotates, the annular plate will be driven to rotate, and when the annular plate rotates, the pulley will be driven to slide in the annular slide groove through the connecting rod. When the annular plate rotates, the pulley can reduce the resistance of the annular plate during rotation. By scraping off the sludge adsorbed on the inner wall of the tank body, sludge will accumulate on the inner wall of the equipment over time, which will reduce the equipment and dehydration efficiency. Scraping off the sludge adsorbed on the inside of the tank body can maintain the equipment in a good operating state and improve the dehydration efficiency of the equipment.

[0012] Preferably, the filter mechanism also includes a discharge pipe fixedly connected to the bottom of the annular fixed block, a transmission gear is fixedly connected to the top of the annular plate, the transmission gear is meshed with the control gear, a circular column is fixedly connected to the bottom of the pulley, a rectangular slide is provided at the bottom of the circular column, a telescopic spring is fixedly connected to the top inner wall of the rectangular slide, a brush is fixedly connected to the bottom end of the telescopic spring, the transmission gear drives the control gear to rotate after rotation, the control gear drives the second rotating rod to rotate after rotation, the second rotating rod can provide power for the air intake mechanism to ensure the normal operation of the air intake mechanism, when the pulley moves, the pulley can drive the circular column to move, the circular column moves and drives the brush to move at the bottom of the filter tank, so that the brush cleans the floating objects dropped in the filter tank into the discharge pipe, thereby completing the cleaning of the floating objects, so that the floating objects can be prevented from gathering in the filter tank and the device can be prevented from being blocked, because the shape of the filter tank has an arc, under the action of the telescopic spring, the convex block can adjust the position of the brush according to the change of the arc of the filter tank, so that the brush can be automatically adjusted following the arc of the filter tank.

[0013] The air intake mechanism also includes a shell body fixedly connected to the bottom of the annular fixed block, the top of the shell body is provided with an air inlet, the bottom end of the rotating rod two is fixedly connected to a reciprocating screw rod, the reciprocating screw rod is threadedly connected to a movable plate, a movable groove is provided in the movable plate, a telescopic rod is fixedly connected to the side wall of the movable groove, an end of the telescopic rod away from the movable groove is fixedly connected to a slide plate, a tension spring is sleeved on the telescopic rod, the left end of the tension spring is fixedly connected to the slide plate, and the right end of the tension spring is fixedly connected to the movable groove, a fixed block is fixedly connected to the inner wall of the shell body, the side wall of the fixed block contacts the slide plate, an air intake pipe is fixedly connected to the bottom of the shell body, and the side of the air intake pipe away from the shell body is fixedly connected to the tank body, when the control gear drives the rotating rod two to rotate, the rotating rod two can drive the reciprocating screw rod to rotate, and the reciprocating screw rod can drive the movable plate to move up and down after rotating, and when the movable plate moves upward, it is restricted by the shape of the fixed block and the slide plate, and the movable plate moves upward After the movement, the slide plate is driven to move upward. After the slide plate moves upward, the spring is stretched to force the slide plate to be close to the outer wall of the fixed block. At this time, the distance between the slide plate and the movable plate becomes larger and larger, so that the air can enter the bottom of the movable plate through the gap between the slide plate and the movable plate. When the movable plate moves downward, it is restricted by the fixed block, so that the slide plate is close to the movable plate. When the movable plate continues to move downward, the air entering the bottom of the movable plate will be squeezed, so that the air enters the air inlet pipe through the one-way valve, and then enters the inside of the tank. The one-way valve can prevent the sludge from being sucked into the shell when the movable plate moves up. After the air enters the inside of the tank, bubbles are formed at the bottom of the sludge, and tiny bubbles are formed in the sludge, so that floating objects attach to the bubbles and rise up, and floating objects and impurities in the sludge float on the surface. In this way, the removal quality of floating objects and impurities in the sludge by the equipment can be improved, thereby ensuring the dehydration quality of the sludge by the equipment.

[0014] Preferably, the air intake mechanism also includes a filter screen fixedly connected to the inner wall of the air inlet, a strip-shaped fixed block is fixedly connected to the top of the shell body, a strip-shaped movable groove is provided on the top of the strip-shaped fixed block, a limited sliding groove is provided on the side wall of the strip-shaped movable groove, a gear is slidably connected in the limited sliding groove, a rack is fixedly connected to the bottom inner wall of the strip-shaped movable groove, the rack is meshed with the gear, a round roller is fixedly connected on the side of the gear away from the strip-shaped fixed block, an air transmission groove is provided in the round roller, a spring 1 is fixedly connected to the inner wall of the air transmission groove, a brush is fixedly connected to the end of the spring 1, a filter screen is arranged in the air inlet, the filter screen can block mosquitoes and fallen leaves in the outside air, and the filter The net can prevent these impurities from entering the shell, thereby ensuring that the gas will not be mixed with impurities during the air intake process, ensuring that the equipment will not be blocked during the air intake process. When the movable plate moves upward, the movable plate can drive the wire wheel to move upward. After the wire wheel moves upward, it pulls the pull rope, thereby forcing the gear to slide in the limiting slide groove. During the sliding process, the gear is acted upon by the rack, and the gear meshes with the rack, thereby driving the gear to rotate. After the gear rotates, it drives the round roller and the brush to rotate, so that the brush can clean the impurities that fall on the surface of the filter screen, avoiding the clogging of the filter screen by impurities, thereby ensuring that the gas can smoothly enter the tank.

[0015] Preferably, the air intake mechanism also includes an air delivery pipe fixedly connected to the left side of the round roller, the air delivery pipe is fixedly connected to an annular shell on the side away from the round roller, an air blowing pipe is fixedly connected to the outer wall of the annular shell, an annular sleeve is rotatably provided on the outer wall of the gear, a spring 2 is fixedly connected to the outer wall of the annular sleeve, a rectangular fixing plate is fixedly connected to the side of the spring 2 away from the annular sleeve, the side wall of the rectangular fixing plate is fixedly connected to the strip fixing block, a wire wheel is fixedly connected to the top of the movable plate, the top end of the wire wheel extends to the outside of the shell and is slidably connected to the shell, and a wire wheel is fixedly connected to the outer wall of the annular shell. A pull rope is fixedly connected, and the pull rope passes around the wire wheel and is fixedly connected to the top of the shell. When the gear drives the round roller to rotate, the brush rotates with the round roller. After the brush rotates, it contacts the top of the filter screen, so that the brush is subjected to an extrusion force to squeeze the spring. When the brush is squeezed, the gas in the air transmission groove can be pushed into the air transmission pipe and the annular shell, and then enters the air blowing pipe through the annular shell. The gas entering the air blowing pipe can be sprayed toward the brush, so that the dust adsorbed on the surface of the brush can be blown off, further improving the cleaning effect of the brush during cleaning.

[0016] The present invention has the following beneficial effects:

[0017] When the control gear drives the rotating rod 2 to rotate, the rotating rod 2 can drive the reciprocating screw rod to rotate, and the reciprocating screw rod can drive the moving plate to move up and down after rotating. When the moving plate moves upward, it is restricted by the shape of the fixed block and the slide plate, and the moving plate drives the slide plate to move upward. After the slide plate moves upward, the stretching spring forces the slide plate to be tightly attached to the outer wall of the fixed block. At this time, the distance between the slide plate and the moving plate becomes larger and larger, so that air can enter the bottom of the moving plate through the gap between the slide plate and the moving plate. When the moving plate moves downward, it is restricted by the fixed block, so that the slide plate is tightly attached to the moving plate. When the moving plate continues to move downward, the air entering the bottom of the moving plate will be squeezed, so that the air enters the tank body through the air inlet pipe. After the air enters the tank body, bubbles are formed in the sludge, and tiny bubbles are formed in the sludge, so that floating objects attached to the bubbles rise and float, so that floating objects and impurities in the sludge float on the surface, so that the equipment can improve the removal quality of floating objects and impurities in the sludge, thereby ensuring the dehydration quality of the sludge by the equipment.

[0018] 2. The present invention utilizes the centrifugal force generated by rotation to separate the floating objects on the sludge surface from the sludge. The rotating shaft can also drive the annular mounting block and the second stirring blade to rotate while rotating. After the second stirring blade rotates, the sludge in the tank body can be stirred. After the sludge in the tank body is stirred, a vortex will be generated. The formation of the vortex causes the floating objects in the sludge to be acted upon by the centrifugal force, causing it to move toward the periphery of the centrifugal shaft. Since the floating objects are light in weight, they will be pushed by the centrifugal force and move along the path outside the axis. Due to the action of the centrifugal force, they will be pushed into the rectangular filter tank due to the light weight, and then enter the filter tank through the rectangular filter tank. The floating objects entering the filter tank will flow out through the discharge pipe, so that the floating objects floating on the sludge surface can be removed and collected. The floating objects in the sludge will increase the difficulty of the dehydration process and hinder the removal of water. Cleaning the floating objects can reduce obstacles in the dehydration process and improve the dehydration efficiency of the sludge.

[0019] 3. When the sludge needs to be dehydrated, the sludge is first poured into the tank body, and then the driving motor is started. The driving motor drives the rotating shaft to rotate, and the rotating shaft drives the rotating rod to rotate. The rotating rod drives the transmission bevel gear to rotate, and the transmission bevel gear is meshed with the fixed bevel gear, so that the transmission bevel gear drives the rotating rod to rotate. The rotating rod drives the stirring blade to rotate. The stirring blade can stir the sludge sunk to the bottom of the tank body after the rotation of the stirring rod, so that the floating objects in the sludge can be separated from the sludge. By providing a through groove, the resistance of the stirring blade can be reduced when the stirring blade rotates, and the sludge can be stirred, which can reduce uneven dehydration or the occurrence of The risk of regional solid accumulation is prevented by preventing the sludge from agglomerating in the tank. When the pulley moves, the pulley can drive the circular column to move. After the circular column moves, it drives the brush to move at the bottom of the filter tank, so that the brush cleans the floating objects that fall into the filter tank into the discharge pipe, thereby completing the cleaning of the floating objects. This can prevent the floating objects from gathering in the filter tank and prevent the equipment from being blocked. Since the shape of the filter tank has an arc, under the action of the telescopic spring, the protrusion can adjust the position of the brush according to the change of the arc of the filter tank, so as to ensure that the brush can automatically adjust following the arc of the filter tank.

[0020] 4. When the stirring blade 1 rotates, the protrusion on the stirring blade 1 will also rotate. The protrusion will contact the circular rod during the rotation, and then the circular rod and the connecting block 2 will rotate due to the thrust of the protrusion. After the sludge is subjected to the action of centrifugation and the influence of the vortex, it will be adsorbed on the inner wall of the tank body. After the connecting block 2 rotates, the sludge adsorbed on the inner wall of the tank body can be scraped off. After the connecting block 2 rotates, it will drive the annular plate to rotate. After the annular plate rotates, it will drive the pulley to slide in the annular groove through the connecting rod. When the annular plate rotates, the pulley can reduce the resistance of the annular plate during rotation. By scraping off the sludge adsorbed on the inner wall of the tank body, the inner wall of the equipment will accumulate sludge over time, which will reduce the equipment and dehydration efficiency. Scraping off the sludge adsorbed on the inside of the tank body can maintain the equipment in a good operating state and improve the dehydration efficiency of the equipment.

[0021] 5. The present invention arranges a filter in the air inlet, which can block mosquitoes and fallen leaves in the outside air, and prevent these impurities from entering the shell, thereby ensuring that the gas will not be mixed with impurities during the air intake process, ensuring that the device will not be blocked during the air intake process, when the movable plate moves upward, the movable plate can drive the wire wheel to move upward, and the wire wheel pulls the pull rope after moving upward, thereby forcing the gear to slide in the limiting slide groove, and the gear is acted on by the rack during the sliding process, and the gear is meshed with the rack, thereby driving the gear to rotate, and the gear rotates and drives the round roller and the brush to rotate, so that the brush can clean the impurities dropped on the surface of the filter, avoid impurities blocking the filter, and thus ensure that the gas can enter smoothly. When the brush is squeezed, the gas in the gas transmission groove can be pushed into the gas transmission pipe and the annular shell, and then enters the air blowing pipe through the annular shell. The gas entering the air blowing pipe can be sprayed toward the brush, which can blow off the dust adsorbed on the surface of the brush. By cleaning the impurities on the filter, it is ensured that the dust, broken leaves and other impurities on the filter are effectively removed, and the filter is prevented from being blocked by these impurities, thereby ensuring that the gas can smoothly enter the tank body and generate bubbles inside the tank body, so that the air intake process remains unobstructed, ensuring the stability and long-term reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the stirring mechanism of the present invention;

[0025] Figure 3 For the present invention Figure 2 A is an enlarged schematic diagram;

[0026] Figure 4 For the present invention Figure 2 A magnified schematic diagram of B;

[0027] Figure 5 It is a schematic diagram of the filtering mechanism of the present invention;

[0028] Figure 6 For the present invention Figure 5 A magnified schematic diagram of middle C;

[0029] Figure 7 It is a schematic diagram of the air intake mechanism of the present invention;

[0030] Figure 8 For the present invention Figure 7 A magnified schematic diagram of D in the middle;

[0031] Fig. 9 It is a partial cross-sectional schematic diagram of the air intake mechanism of the present invention;

[0032] Fig.10 It is a side cross-sectional schematic diagram of the air intake mechanism of the present invention;

[0033] Fig.11 For the present invention Fig.10 A magnified schematic diagram of E.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] In the figure: 1. stirring mechanism; 101. tank body; 102. annular fixed block; 103. supporting leg; 104. supporting sleeve; 105. driving motor; 106. rotating shaft; 107. fixed bevel gear; 108. connecting block 1; 109. rotating rod 1; 110. driving bevel gear; 111. stirring blade 1; 112. through groove; 113. annular mounting block; 114. stirring blade 2; 2. filtering mechanism; 201. filtering tank; 202. rectangular filtering tank; 203. circular rod; 204. protrusion; 205. connecting block 2; 206. annular plate; 207. annular chute; 208. connecting rod; 209. pulley; 210. discharge pipe; 211. driving gear; 212. circular column; 213. rectangular chute; 214. telescopic spring; 215. brush; 3. inlet Air mechanism; 301, fixed plate; 302, rotating rod 2; 303, control gear; 304, shell; 305, air inlet; 306, reciprocating screw rod; 307, movable plate; 308, movable groove; 309, telescopic rod; 310, slide plate; 311, extension spring; 312, fixed block; 313, one-way valve; 314, air inlet pipe; 315, filter screen; 316, strip fixed block; 317, strip movable groove; 318, limit slide groove; 319, gear; 320, rack; 321, round roller; 322, air transmission groove; 323, spring 1; 324, brush; 325, air transmission pipe; 326, annular shell; 327, air blowing pipe; 328, annular sleeve; 329, spring 2; 330, rectangular fixed plate; 331, wire wheel; 332, pull rope. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] For example, see Figure 1 - Figure 3 The present invention is a pretreatment device for environmentally friendly sludge dewatering equipment, comprising a stirring mechanism 1, the stirring mechanism 1 also comprises a tank body 101, an annular fixing block 102 is fixedly sleeved on the outer wall of the tank body 101, and a plurality of supporting legs 103 are fixedly connected to the bottom of the tank body 101;

[0038] Filter mechanism 2, a filter slot 201 is provided on the top of the annular fixing block 102, and a plurality of rectangular filter slots 202 are provided on the side wall of the tank body 101, and the plurality of rectangular filter slots 202 extend into the filter slot 201;

[0039] In the air intake mechanism 3 , a plurality of fixing plates 301 are fixedly connected to the outer wall of the annular fixing block 102 , a second rotating rod 302 is rotatably connected to the top of the fixing plate 301 , and a control gear 303 is fixedly sleeved on the outer wall of the second rotating rod 302 .

[0040] The stirring mechanism 1 also includes a support sleeve 104 fixedly connected to the bottom of the tank body 101, a driving motor 105 is fixedly connected to the inner wall of the support sleeve 104, a rotating shaft 106 is fixedly connected to the output shaft of the driving motor 105, the top of the rotating shaft 106 extends into the tank body 101 and is rotatably connected to the tank body 101, a fixed bevel gear 107 is rotatably sleeved on the outer wall of the rotating shaft 106, and the bottom of the fixed bevel gear 107 is fixedly connected to the bottom inner wall of the tank body 101. When the sludge needs to be dehydrated, the sludge is first poured into the tank body 101, and then the driving motor 105 is started. The driving motor 105 drives the rotating shaft 106 to rotate, thereby providing power for the stirring mechanism 1.

[0041] The stirring mechanism 1 also includes a plurality of connecting blocks 108 fixedly connected to the outer wall of the rotating shaft 106, and a rotating rod 109 is rotatably connected to the side wall of the connecting block 108. A transmission bevel gear 110 is fixedly sleeved on the outer wall of the rotating rod 109, and the transmission bevel gear 110 is meshed with the fixed bevel gear 107. After the rotating shaft 106 rotates, the rotating rod 109 is driven to rotate, and the revolution of the rotating rod 109 drives the transmission bevel gear 110 to rotate, and the transmission bevel gear 110 is meshed with the fixed bevel gear 107, so that the transmission bevel gear 110 drives the rotating rod 109 to rotate, so that the floating objects in the sludge can be separated from the sludge.

[0042] The stirring mechanism 1 also includes a stirring blade 111 fixedly sleeved on the outer wall of the rotating rod 109. A plurality of through grooves 112 are provided on the top of the stirring blade 111. The plurality of through grooves 112 are distributed in an array. A plurality of annular mounting blocks 113 are fixedly sleeved on the outer wall of the rotating shaft 106. Stirring blades 114 are fixedly connected to the outer walls of the plurality of annular mounting blocks 113. When the rotating rod 109 rotates, the stirring blade 111 is driven to rotate. When the stirring blade 111 rotates, the sludge settled at the bottom of the tank body 101 can be stirred. The sludge is easy to form lumps during the dehydration process, especially at the bottom. By stirring the bottom of the sludge, the sludge can be prevented from agglomerating and sticking, so that the floating objects in the sludge can be separated from the sludge. By providing the through grooves 112, the resistance of the stirring blade 111 can be reduced when the stirring blade 111 rotates, and the sludge is stirred, which can reduce the risk of uneven dehydration or regional solid accumulation and prevent the sludge from agglomerating in the tank body 101.

[0043] For example 2, please refer to Figure 4 - Fig.11 The present invention is a pretreatment device for an environmentally friendly sludge dewatering device. On the basis of Example 1, the filtering mechanism 2 also includes a circular rod 203 slidably connected to the inner wall of the bottom of the tank body 101, and a protrusion 204 is fixedly connected to the side wall of the stirring blade 111. A connecting block 205 is fixedly connected to the top of the circular rod 203. The outer wall of the connecting block 205 contacts the inner wall of the tank body 101, and the top of the connecting block 205 is fixedly connected to an annular plate 206. When the stirring blade 111 rotates, the protrusion 204 on the stirring blade 111 will also rotate. The protrusion 204 will contact the circular rod 203 during the rotation, so that the circular rod 203 and the connecting block 205 are rotated by the thrust of the protrusion 204. After the sludge is subjected to the action of centrifugation and the influence of the vortex, it will be adsorbed on the inner wall of the tank body 101. After the connecting block 205 rotates, the sludge adsorbed on the inner wall of the tank body 101 can be scraped off.

[0044] The filtering mechanism 2 also includes an annular groove 207 provided on the side wall of the rectangular filter tank 202, and a plurality of connecting rods 208 are fixedly connected to the side wall of the annular plate 206, and pulleys 209 are rotatably sleeved on the outer walls of the plurality of connecting rods 208, and the plurality of pulleys 209 all extend to the annular groove 207 and are slidably connected to the annular groove 207. After the connecting block 205 rotates, the annular plate 206 is driven to rotate, and after the annular plate 206 rotates, the pulley 209 is driven to slide in the annular groove 207 through the connecting rod 208. The pulley 209 can reduce the resistance of the annular plate 206 during rotation when the annular plate 206 rotates. Sludge will accumulate on the inner wall of the equipment over time, and the sludge adsorbed on the inner wall of the tank body 101 can be scraped off to reduce the equipment and dehydration efficiency. Scraping off the sludge adsorbed on the inner wall of the tank body 101 can maintain the equipment in a good operating state and improve the dehydration efficiency of the equipment.

[0045] The filter mechanism 2 also includes a discharge pipe 210 fixedly connected to the bottom of the annular fixed block 102, a transmission gear 211 is fixedly connected to the top of the annular plate 206, the transmission gear 211 is meshed with the control gear 303, a circular column 212 is fixedly connected to the bottom of the pulley 209, a rectangular slide 213 is provided at the bottom of the circular column 212, a telescopic spring 214 is fixedly connected to the top inner wall of the rectangular slide 213, a brush 215 is fixedly connected to the bottom end of the telescopic spring 214, the transmission gear 211 rotates and drives the control gear 303 to rotate, the control gear 303 rotates and drives the second rotating rod 302 to rotate, the second rotating rod 302 can provide power for the air intake mechanism 3 to operate, and ensure that the air intake mechanism 3 can be properly During normal operation, when the pulley 209 moves, the pulley 209 can drive the circular column 212 to move. After the circular column 212 moves, it drives the brush 215 to move at the bottom of the filter tank 201, so that the brush 215 cleans the floating objects dropped in the filter tank 201 into the discharge pipe 210, thereby completing the cleaning of the floating objects. This can prevent the floating objects from gathering in the filter tank 201 and prevent the device from being blocked. Since the shape of the filter tank 201 has an arc, under the action of the telescopic spring 214, the protrusion 204 can adjust the position of the brush 215 according to the change of the arc of the filter tank 201, so as to ensure that the brush 215 can automatically adjust following the arc of the filter tank 201.

[0046] The air intake mechanism 3 also includes a shell 304 fixedly connected to the bottom of the annular fixed block 102, an air inlet 305 is provided on the top of the shell 304, a reciprocating screw rod 306 is fixedly connected to the bottom end of the rotating rod 302, a movable plate 307 is threadedly connected to the reciprocating screw rod 306, a movable groove 308 is provided in the movable plate 307, a telescopic rod 309 is fixedly connected to the side wall of the movable groove 308, and a slide plate 310 is fixedly connected to the end of the telescopic rod 309 away from the movable groove 308, a tension spring 311 is sleeved on the telescopic rod 309, and the left end of the tension spring 311 is fixedly connected to the slide plate 310, and the tension spring 311 is fixedly connected to the slide plate 310. The right end of the housing 304 is fixedly connected to the movable groove 308, a fixed block 312 is fixedly connected to the inner wall of the housing 304, and the side wall of the fixed block 312 is in contact with the slide plate 310. A one-way valve 313 is fixedly connected to the bottom of the housing 304, and an air inlet pipe 314 is fixedly connected to the bottom of the one-way valve 313. The end of the air inlet pipe 314 away from the one-way valve 313 is fixedly connected to the tank body 101. When the control gear 303 drives the rotating rod 302 to rotate, the rotating rod 302 can drive the reciprocating screw rod 306 to rotate. After the reciprocating screw rod 306 rotates, it can drive the moving plate 307 to move up and down. When the moving plate 307 When moving upward, the movable plate 307 is restricted by the shape of the fixed block 312 and the slide plate 310, and the slide plate 310 moves upward. After the slide plate 310 moves upward, the spring 311 is stretched to force the slide plate 310 to be in close contact with the outer wall of the fixed block 312. At this time, the distance between the slide plate 310 and the movable plate 307 is getting larger and larger, so that the air can enter the bottom of the movable plate 307 through the gap between the slide plate 310 and the movable plate 307. When the movable plate 307 moves downward, it is restricted by the fixed block 312, so that the slide plate 310 and the movable plate 307 are in close contact. When the movable plate 307 continues to move downward When the movable plate 307 moves, the air entering the bottom of the movable plate 307 will be squeezed, so that the air enters the air inlet pipe 314 through the one-way valve 313, and then enters the inside of the tank body 101 through the air inlet pipe 314. The one-way valve 313 can prevent the movable plate 307 from sucking the sludge into the shell 304 when moving upward. After the air enters the inside of the tank body 101, bubbles are formed at the bottom of the sludge, and tiny bubbles are formed in the sludge, so that floating objects adhere to the bubbles and rise up, and the floating objects and impurities in the sludge float on the surface, which can improve the quality of removing floating objects and impurities in the sludge by the equipment, thereby ensuring the dehydration quality of the sludge by the equipment.

[0047] The air intake mechanism 3 also includes a filter screen 315 fixedly connected to the inner wall of the air inlet 305, a strip-shaped fixed block 316 is fixedly connected to the top of the shell 304, a strip-shaped movable groove 317 is provided on the top of the strip-shaped fixed block 316, a limited sliding groove 318 is provided on the side wall of the strip-shaped movable groove 317, a gear 319 is slidably connected in the limited sliding groove 318, a rack 320 is fixedly connected to the bottom inner wall of the strip-shaped movable groove 317, the rack 320 is meshed with the gear 319, a round roller 321 is fixedly connected to the side of the gear 319 away from the strip-shaped fixed block 316, an air delivery groove 322 is provided in the round roller 321, a spring 323 is fixedly connected to the inner wall of the air delivery groove 322, a brush 324 is fixedly connected to the end of the spring 323, and a filter screen 315 is arranged in the air inlet 305, and the filter screen 315 can remove mosquitoes and fallen leaves in the outside air. The filter screen 315 can prevent these impurities from entering the shell 304, thereby ensuring that the gas will not be mixed with impurities during the air intake process, ensuring that the device will not be blocked during the air intake process, when the movable plate 307 moves upward, the movable plate 307 can drive the wire wheel 331 to move upward, and the wire wheel 331 moves upward and pulls the pull rope 332, thereby forcing the gear 319 to slide in the limiting slide groove 318, and the gear 319 is acted upon by the rack 320 during the sliding process, and the gear 319 meshes with the rack 320, thereby driving the gear 319 to rotate, and the gear 319 rotates and drives the round roller 321 and the brush 324 to rotate, so that the brush 324 can clean the impurities that fall on the surface of the filter screen 315, avoid impurities blocking the filter screen 315, and thus ensure that the gas can smoothly enter the tank body 101.

[0048] The air intake mechanism 3 also includes an air delivery pipe 325 fixedly connected to the left side of the round roller 321, and the air delivery pipe 325 is fixedly connected to the side of the round roller 321 away from the round roller 321, and the outer wall of the annular shell 326 is fixedly connected to the air blowing pipe 327, and the outer wall of the gear 319 is rotatably provided with an annular sleeve 328, and the outer wall of the annular sleeve 328 is fixedly connected with a spring 2 329, and the side of the spring 2 329 away from the annular sleeve 328 is fixedly connected with a rectangular fixed plate 330, and the side wall of the rectangular fixed plate 330 is fixedly connected to the strip fixed block 316, and the top of the movable plate 307 is fixedly connected to the wire wheel 331, and the top of the wire wheel 331 extends to the outside of the shell 304 and is slidably connected to the shell 304, and the outer wall of the annular shell 326 is fixedly provided with a spring 2 329, and the side wall of the spring 2 329 is fixedly connected to the strip fixed block 316, and the top of the movable plate 307 is fixedly connected to the wire wheel 331. A pull rope 332 is connected, and the pull rope 332 passes around the wire wheel 331 and is fixedly connected to the top of the shell 304. When the gear 319 drives the round roller 321 to rotate, the brush 324 rotates with the round roller 321. After the brush 324 rotates, it contacts the top of the filter screen 315, so that the brush 324 is subjected to an extrusion force to squeeze the spring 1 323. When the brush 324 is squeezed, the gas in the gas delivery groove 322 can be pushed into the gas delivery pipe 325 and the annular shell 326, and then enters the air blowing pipe 327 through the annular shell 326. The gas entering the air blowing pipe 327 can be sprayed toward the brush 324, so that the dust adsorbed on the surface of the brush 324 can be blown off, further improving the cleaning effect of the brush 324 during cleaning.

[0049] A specific application of this embodiment is: when it is necessary to dehydrate the sludge, first pour the sludge into the tank body 101, then start the drive motor 105, the drive motor 105 drives the rotating shaft 106 to rotate, the rotating shaft 106 drives the rotating rod 109 to rotate, the revolution of the rotating rod 109 drives the transmission bevel gear 110 to rotate, the transmission bevel gear 110 is meshed with the fixed bevel gear 107, and then the transmission bevel gear 110 drives the rotating rod 109 to rotate, the rotating rod 109 drives the stirring blade 111 to rotate, the stirring blade 111 can stir the sludge settled at the bottom of the tank body 101 after the rotation, so that the floating objects in the sludge can be separated from the sludge, and the through groove 112 is provided, When blade 111 rotates, the resistance of stirring blade 111 is reduced. When stirring blade 111 rotates, the protrusion 204 on stirring blade 111 will also rotate. The protrusion 204 will contact the circular rod 203 during the rotation, so that the circular rod 203 and the connecting block 205 are rotated by the thrust of the protrusion 204. After the sludge is centrifuged and affected by the vortex, it will be adsorbed on the inner wall of the tank body 101. After the connecting block 205 rotates, the sludge adsorbed on the inner wall of the tank body 101 can be scraped off. After the connecting block 205 rotates, it will drive the annular plate 206 to rotate. After the annular plate 206 rotates, it will drive the pulley 209 to slide in the annular groove 207 through the connecting rod 208. When the annular plate 206 rotates, the pulley 209 can reduce the resistance of the annular plate 206 during rotation. When the annular plate 206 rotates, it drives the transmission gear 211 to rotate. The transmission gear 211 meshes with the control gear 303. After the transmission gear 211 rotates, it drives the control gear 303 to rotate. After the control gear 303 rotates, it drives the second rotating rod 302 to rotate. When the control gear 303 drives the second rotating rod 302 to rotate, the second rotating rod 302 can drive the reciprocating screw rod 306 to rotate. After the reciprocating screw rod 306 rotates, The movable plate 307 can be driven to move up and down. When the movable plate 307 moves upward, it is restricted by the shapes of the fixed block 312 and the slide plate 310. After the movable plate 307 moves upward, it drives the slide plate 310 to move upward. After the slide plate 310 moves upward, the spring 311 is stretched to force the slide plate 310 to be in close contact with the outer wall of the fixed block 312. At this time, the distance between the slide plate 310 and the movable plate 307 becomes larger and larger, so that the air can enter the bottom of the movable plate 307 through the gap between the slide plate 310 and the movable plate 307.

[0050] When the movable plate 307 moves downward, it is restricted by the fixed block 312, so that the slide plate 310 is in close contact with the movable plate 307. When the movable plate 307 continues to move downward, the air entering the bottom of the movable plate 307 will be squeezed, so that the air enters the tank body 101 through the air inlet pipe 314. After the air enters the tank body 101, bubbles are formed inside the sludge, and tiny bubbles are formed in the sludge, so that floating objects are attached to the bubbles and float up. The rotating shaft 106 can also drive the annular mounting block 113 and the stirring blade 114 to rotate while rotating, so that the stirring After the blade 114 rotates, the sludge in the tank 101 can be stirred. After the sludge in the tank 101 is stirred, a vortex is generated. The formation of the vortex causes the floating objects in the sludge to be acted upon by the centrifugal force, so that they move toward the periphery of the centrifugal axis. Since the floating objects are light in weight, they are pushed by the centrifugal force and move along the path outside the axis. Due to the centrifugal force, they are pushed into the rectangular filter tank 202, and then enter the filter tank 201 through the rectangular filter tank 202. The floating objects entering the filter tank 201 will flow out through the discharge pipe 210.

[0051] When the pulley 209 moves, the pulley 209 can drive the circular column 212 to move. After the circular column 212 moves, it drives the brush 215 to move at the bottom of the filter tank 201, so that the brush 215 cleans the floating objects dropped in the filter tank 201 into the discharge pipe 210, thereby completing the cleaning of the floating objects. In this way, the floating objects can be prevented from gathering in the filter tank 201 and the clogging of the device can be avoided. Since the shape of the filter tank 201 has an arc, under the action of the telescopic spring 214, the protrusion 204 can be adjusted according to the curvature of the filter tank 201. The position of the brush 215 is adjusted by changing the arc shape of the filter tank 201, so that the brush 215 can automatically adjust following the arc shape of the filter tank 201, thereby removing and collecting floating objects floating on the surface of the sludge. A filter screen 315 is arranged in the air inlet 305, and the filter screen 315 can block mosquitoes and fallen leaves in the outside air. The filter screen 315 can prevent these impurities from entering the housing 304, thereby ensuring that the gas will not be mixed with impurities during the air intake process, and ensuring that the device will not be blocked during the air intake process;

[0052] When the movable plate 307 moves upward, the movable plate 307 can drive the wire wheel 331 to move upward. After the wire wheel 331 moves upward, it pulls the pull rope 332, thereby forcing the gear 319 to slide in the limiting slide groove 318. During the sliding process, the gear 319 is acted upon by the rack 320. The gear 319 meshes with the rack 320, thereby driving the gear 319 to rotate. After the gear 319 rotates, it drives the round roller 321 and the brush 324 to rotate, so that the brush 324 can clean up the impurities that fall on the surface of the filter screen 315, thereby preventing the impurities from clogging the filter screen 315, thereby ensuring that the gas can The brush 324 can smoothly enter the interior of the tank body 101. When the gear 319 drives the round roller 321 to rotate, the brush 324 rotates with the round roller 321. After the brush 324 rotates, it contacts the top of the filter screen 315, so that the brush 324 is subjected to an extrusion force to squeeze the spring 1 323. When the brush 324 is squeezed, the gas in the gas delivery groove 322 can be pushed into the gas delivery pipe 325 and the annular shell 326, and then enter the air blowing pipe 327 through the annular shell 326. The gas entering the air blowing pipe 327 can be sprayed toward the brush 324, so that the dust adsorbed on the surface of the brush 324 can be blown off.

[0053] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pretreatment device for environmentally friendly sludge dewatering equipment, comprising a stirring mechanism (1), the stirring mechanism (1) further comprising a tank body (101), an annular fixing block (102) being fixedly sleeved on the outer wall of the tank body (101), a plurality of supporting legs (103) being fixedly connected to the bottom of the tank body (101), characterized in that: Also includes: A filtering mechanism (2), wherein a filtering groove (201) is provided on the top of the annular fixing block (102), and a plurality of rectangular filtering grooves (202) are provided on the side wall of the tank body (101), and the plurality of rectangular filtering grooves (202) all extend into the filtering groove (201); An air intake mechanism (3), wherein a plurality of fixing plates (301) are fixedly connected to the outer wall of the annular fixing block (102), a second rotating rod (302) is rotatably connected to the top of the fixing plate (301), and a control gear (303) is fixedly sleeved on the outer wall of the second rotating rod (302); The stirring mechanism (1) further comprises a support sleeve (104) fixedly connected to the bottom of the tank body (101); a driving motor (105) is fixedly connected to the inner wall of the support sleeve (104); a rotating shaft (106) is fixedly connected to the output shaft of the driving motor (105); a top end of the rotating shaft (106) extends into the tank body (101) and is rotatably connected to the tank body (101); a fixed bevel gear (107) is rotatably sleeved on the outer wall of the rotating shaft (106); and a bottom of the fixed bevel gear (107) is fixedly connected to the inner wall of the bottom of the tank body (101); The filtering mechanism (2) further comprises a circular rod (203) slidably connected to the inner wall of the bottom of the tank body (101), and the stirring mechanism (1) further comprises a stirring blade (111) fixedly sleeved on the outer wall of the rotating rod (109), a protrusion (204) being fixedly connected to the side wall of the stirring blade (111), a connecting block (205) being fixedly connected to the top of the circular rod (203), an outer wall of the connecting block (205) being in contact with the inner wall of the tank body (101), and a ring plate (206) being fixedly connected to the top of the connecting block (205); The filtering mechanism (2) further comprises an annular slide groove (207) formed on the side wall of the rectangular filter groove (202); a plurality of connecting rods (208) are fixedly connected to the side wall of the annular plate (206); pulleys (209) are rotatably sleeved on the outer walls of the plurality of connecting rods (208); the plurality of pulleys (209) extend to the annular slide groove (207) and are slidably connected to the annular slide groove (207); The air intake mechanism (3) further comprises a shell (304) fixedly connected to the bottom of the annular fixed block (102), the top of the shell (304) being provided with an air intake port (305), the bottom end of the second rotating rod (302) being fixedly connected with a reciprocating screw (306), the reciprocating screw (306) being threadedly connected with a movable plate (307), the movable plate (307) being provided with a movable groove (308), a telescopic rod (309) being fixedly connected to the side wall of the movable groove (308), the end of the telescopic rod (309) away from the movable groove (308) being fixedly connected with a slide plate (310), the telescopic rod (30 9) A tension spring (311) is provided on the upper sleeve, the left end of the tension spring (311) is fixedly connected to the slide plate (310), the right end of the tension spring (311) is fixedly connected to the movable groove (308), a fixed block (312) is fixedly connected to the inner wall of the shell (304), the side wall of the fixed block (312) is in contact with the slide plate (310), a one-way valve (313) is fixedly connected to the bottom of the shell (304), an air intake pipe (314) is fixedly connected to the bottom of the one-way valve (313), and the end of the air intake pipe (314) away from the one-way valve (313) is fixedly connected to the tank body (101).

2. The pretreatment equipment of the environmentally friendly sludge dewatering equipment according to claim 1 is characterized by: The stirring mechanism (1) further comprises a plurality of connecting blocks (108) fixedly connected to the outer wall of the rotating shaft (106); a rotating rod (109) is rotatably connected to the side wall of the connecting block (108); a transmission bevel gear (110) is fixedly sleeved on the outer wall of the rotating rod (109); the transmission bevel gear (110) is meshed with the fixed bevel gear (107).

3. The pretreatment equipment of the environmentally friendly sludge dewatering equipment according to claim 2 is characterized by: A plurality of through grooves (112) are provided on the top of the stirring blade 1 (111), and the plurality of through grooves (112) are distributed in an array. A plurality of annular mounting blocks (113) are fixedly sleeved on the outer wall of the rotating shaft (106), and stirring blades 2 (114) are respectively fixedly connected to the outer walls of the plurality of annular mounting blocks (113).

4. The pretreatment equipment of the environmentally friendly sludge dewatering equipment according to claim 3 is characterized by: The filtering mechanism (2) further comprises a discharge pipe (210) fixedly connected to the bottom of the annular fixed block (102); a transmission gear (211) is fixedly connected to the top of the annular plate (206); the transmission gear (211) is meshed with a control gear (303); a circular column (212) is fixedly connected to the bottom of the pulley (209); a rectangular slide groove (213) is provided at the bottom of the circular column (212); a telescopic spring (214) is fixedly connected to the inner wall of the top of the rectangular slide groove (213); and a brush (215) is fixedly connected to the bottom end of the telescopic spring (214).

5. The pretreatment equipment of the environmentally friendly sludge dewatering equipment according to claim 4 is characterized by: The air intake mechanism (3) further comprises a filter screen (315) fixedly connected to the inner wall of the air intake port (305); a strip-shaped fixed block (316) is fixedly connected to the top of the housing (304); a strip-shaped movable groove (317) is provided on the top of the strip-shaped fixed block (316); a limiting slide groove (318) is provided on the side wall of the strip-shaped movable groove (317); a gear (319) is slidably connected in the limiting slide groove (318); and the strip-shaped movable groove (304) is provided with a plurality of gears (319) in the plurality of gears (319). 17) is fixedly connected to the inner wall of the bottom thereof, the rack (320) being meshed with the gear (319), the gear (319) being fixedly connected to a round roller (321) on the side away from the bar-shaped fixed block (316), the round roller (321) being provided with a gas transmission groove (322), the inner wall of the gas transmission groove (322) being fixedly connected to a spring 1 (323), the end of the spring 1 (323) being fixedly connected to a brush (324).

6. The pretreatment equipment of the environmentally friendly sludge dewatering equipment according to claim 5 is characterized by: The air intake mechanism (3) further comprises an air delivery pipe (325) fixedly connected to the left side of the round roller (321); an annular housing (326) is fixedly connected to the side of the air delivery pipe (325) away from the round roller (321); an air blowing pipe (327) is fixedly connected to the outer wall of the annular housing (326); an annular sleeve (328) is rotatably sleeved on the outer wall of the gear (319); a second spring (329) is fixedly connected to the outer wall of the annular sleeve (328); the second spring (329) is away from the annular sleeve (328). A rectangular fixed plate (330) is fixedly connected to one side of the housing (304), a side wall of the rectangular fixed plate (330) is fixedly connected to a strip-shaped fixed block (316), a wire wheel (331) is fixedly connected to the top of the movable plate (307), a top end of the wire wheel (331) extends outside the housing (304) and is slidably connected to the housing (304), a pull rope (332) is fixedly connected to the outer wall of the annular housing (326), the pull rope (332) passes around the wire wheel (331) and is fixedly connected to the top of the housing (304).

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