Method and equipment for preparing light ceramsite by utilizing sludge of urban sewage plant

Abstract

The invention relates to equipment for preparing light ceramsite by utilizing sludge of a town sewage plant, which comprises a granulator main body, the granulator main body comprises a multi-foot frame, a rotating shaft seat, a rotating shaft center, a granulating tray, a main rotating motor bracket, a main rotating motor, a speed reducer, a gear shaft support, a pinion shaft, a chain wheel, a chain, a pinion, a large fluted disc, a supporting upright post and a supporting cross beam; the rotating shaft seat is fixedly arranged on the multi-foot base frame, the rotating shaft center is movably arranged in the rotating shaft seat in a sleeved mode through a bearing, the granulating material disc is fixedly arranged on the rotating shaft center, and the main rotating motor support is fixedly arranged on the rotating shaft seat. The size and shape of particles are controlled, forming is diversified and adjustable, the forming quality is uniform, the stirring efficiency is improved, the pelletizing rate is increased, adhesion of the side wall and the bottom face of a pelletizing tray is reduced, and the occupied time and manpower for shutdown cleaning are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of lightweight ceramsite, in particular to a method and equipment for preparing lightweight ceramsite by utilizing sludge from a municipal sewage plant. Background Art

[0002] Light ceramsite is ceramic particles. Because ceramsite is lightweight, it is also called lightweight ceramsite sand. Light ceramsite is made of clay or fly ash, biological sludge as the main raw materials, and is made by high-temperature roasting and expansion. As a light aggregate, light ceramsite has the characteristics of low density, high strength, high water absorption, heat preservation, heat insulation, fire resistance, and earthquake resistance. It has a wide range of uses and can replace ordinary sand and gravel to prepare lightweight aggregate concrete. It can be used as a water treatment filter, adsorbent, and permeable pavement material. It can also be used as a culture medium for soilless cultivation in agriculture and gardening, as well as raw materials for building materials such as bridge panels and hollow blocks.

[0003] Lightweight ceramsite has a round appearance. Its surface is a hard shell, which is ceramic or glazed, has the function of water-proofing and air-retaining, and gives ceramsite a higher strength and adsorption capacity. Ceramsite sand is mainly used to replace natural river sand or mountain sand in the preparation of lightweight aggregate concrete, Lightweight ceramsite can also be used as fine aggregate for acid-resistant and heat-resistant concrete, as well as soilless cultivation and industrial filtration. According to density, ceramsite is divided into three categories: general density ceramsite, ultra-light density ceramsite, and extra-light density ceramsite. General density ceramsite refers to ceramsite with a density greater than 500kg / m3. Its strength is generally relatively high, and it is mostly used in structural thermal insulation concrete or high-strength concrete. Extra-light density ceramsite generally refers to ceramsite with a density of 300 to 500kg / m3. This type of ceramsite is generally used for thermal insulation concrete and its products. Extra-light density ceramsite refers to ceramsite with a density less than 300kg / m3. Its thermal insulation performance is very excellent, but its strength is poor. It is generally used to produce extra-light thermal insulation concrete and its products.

[0004] It can be divided into two categories: calcined and non-calcined processes. The calcined type can be divided into sintered and expanded types. The former is mainly fly ash ceramsite, and the calcined ceramsite has a larger bulk density. To produce lightweight and ultra-light ceramsite, the latter is generally used, and its production process generally includes: raw material pretreatment, batching, molding, pre-burning, roasting, cooling, screening, etc. During the roasting process, the blank softens under high temperature and has a certain viscosity, and can flow and deform under the action of external force. At the same time, gas is generated in the blank and a certain internal air pressure is formed, which causes the softened blank with a certain viscosity to expand, and finally forms a porous structure of ceramsite.

[0005] Urban sludge refers to the sediment produced by urban sewage treatment plants during the treatment of sewage. This sludge has high water content, is easy to rot, has a strong odor, and contains parasite eggs, pathogenic microorganisms and heavy metals. If it is not properly treated and discharged at will, it will cause secondary pollution to the environment and directly harm the human body. With the development of the economy, urban construction is also getting faster and faster. With the surge in urban population, people have ignored the existence of sludge for a long time due to various reasons. In recent years, with the acceleration of urban sewage treatment and sewage treatment facility construction in my country, the urban sewage treatment rate has continued to increase, and the problem of sludge treatment and disposal has become increasingly apparent. The ceramsite made of biological sludge as the main raw material, dried, ground, balled and sintered, is called sewage treatment biological sludge ceramsite. Using biological sludge to replace part of the clay to burn ceramsite not only saves clay, but also protects farmland, and also plays a certain role in environmental protection. Biological sludge ceramsite is widely used in building materials, gardening, food and beverage, refractory insulation materials, chemical industry, petroleum and other departments. Ceramic sand filter material is an ideal filter material for water plants, filter tanks and oil filter tanks in refineries because of its light material, large specific surface area, strong adsorption and suspension ability, wear resistance, erosion resistance, many micropores, strong pollution interception ability, stable chemical properties, etc. The product does not contain metal ions and toxic and harmful impurities that are harmful to the human body. It can also treat biodegradable organic industrial wastewater, industrial miscellaneous drainage, slightly polluted water sources, etc., and can completely replace quartz sand, anthracite, etc. as filter media in water treatment. Ceramic can be reused and can be landfilled when it is finally discarded. Because of its own material, it can form new soil and sheet layer after landfill, which will not damage the environment. It is an excellent green filter material that is both environmentally friendly and energy-saving.

[0006] For example, a device for preparing lightweight ceramsite from municipal sludge disclosed in application number 202321134848.4 belongs to the field of sludge treatment technology; it includes a box, a pressing plate, a cylinder, a motor and a collecting box, a cylinder is fixedly arranged on the top of the box, and a pressing plate, an extrusion plate and a cutting plate are arranged in sequence from top to bottom inside the box, the extrusion plate is fixedly connected to the inner wall of the box, and the piston rod of the cylinder is fixedly connected to the pressing plate; a motor is provided at the lower end of the cutting plate and is fixedly connected to the lower surface of the box, and the output end of the motor is fixedly connected to the middle part of the bottom end of the cutting plate through a transmission shaft. The utility model makes the sludge into small pieces through the cooperation of the extrusion plate and the pressing plate, and the small pieces of sludge are dried by the heating component and fall into the discharge bin, so that the sludge packed in ceramsite is made and collected, and the cutting plate fits the lower end of the extrusion plate to ensure the forming and cutting of the ceramsite, which is easy to use.

[0007] However, most of the current sludge preparation lightweight expanded clay equipment cannot automatically adjust the inclination and rotation speed of the disc, control the size and shape of the particles, have a single molding process, uneven molding quality, and low stirring efficiency, resulting in a low balling rate. The side walls and bottom of the granulation disc are easy to stick, and shutdown cleaning takes time and manpower, resulting in low work efficiency and high labor intensity. Summary of the invention

[0008] The technical problem to be solved by the present invention is to automatically adjust the inclination angle and rotation speed of the disc, control the size and shape of the particles, make the molding diverse and adjustable, ensure uniform molding quality, improve the stirring efficiency, increase the ball forming rate, reduce the sticking of the side wall and bottom surface of the granulating material disc, reduce the time and manpower occupied by shutdown cleaning, improve work efficiency, and reduce the intensity of manual labor.

[0009] In order to solve the above technical problems, the present invention provides a device for preparing lightweight ceramsite using sludge from urban sewage treatment plants, including a granulator body, wherein the granulator body includes a multi-legged base, a rotating shaft seat, a rotating axis, a granulating material disc, a main rotating motor bracket, a main rotating motor, a reducer, a gear shaft support, a pinion shaft, a sprocket, a chain, a pinion, a large gear disc, a supporting column, and a supporting crossbeam; the rotating shaft seat is fixedly arranged on the multi-legged base, the rotating axis is movably sleeved in the rotating shaft seat through a bearing, the granulating material disc is fixedly arranged on the rotating axis, the main rotating motor bracket is fixedly arranged on the rotating shaft seat, and the reducer is fixedly arranged on the rotating shaft seat. The main rotating motor is fixedly connected to the reducer on the main rotating motor bracket to transmit power; the gear shaft support is fixedly arranged on the main rotating motor bracket, the pinion shaft is movably sleeved in the gear shaft support through a bearing, the output shaft end of the reducer and the end of the pinion shaft are respectively fixedly provided with sprockets, the two groups of sprockets are connected and transmitted through the chain, the pinion is fixedly sleeved on the pinion shaft, the large toothed disc is fixedly arranged at the bottom of the granulating material disc, the pinion is meshed with the large toothed disc for transmission, the support column is fixedly arranged on the multi-legged base frame, and the support beam is fixedly arranged on the support column; An automatic angle adjustment mechanism for automatically adjusting the granulation angle is fixedly arranged at the bottom of the granulator body; The granulator body is fixedly provided with a multifunctional stirring mechanism for stirring the granulation raw materials.

[0010] Preferably, the automatic angle adjustment mechanism includes an angular bearing seat, an angular shaft, a pull rod seat, an articulated shaft, a reducer angular seat, a reducer support seat, a hinge sleeve, an angular motor seat, an angular reducer, an angular motor, and an angular screw rod; the angular bearing seat is provided in two groups, which are symmetrically arranged on the multi-legged base frame, the rotating shaft seat is movably arranged between the two groups of the angular bearing seats through the angular shaft, the pull rod seat is movably connected to the rotating shaft seat through the articulated shaft, and the reducer angular seat is fixedly arranged on the multi-legged base frame. At the bottom of the foot frame, the reducer support seat is movably arranged on the reducer corner seat through two groups of hinge sleeves fixed at both ends, and can rotate along the hinge sleeves, the corner reducer is fixedly arranged on the reducer support seat, the corner motor seat is fixedly arranged on the corner reducer, the corner motor is fixedly arranged on the corner motor seat and connected with the corner reducer to transmit power, the corner screw rod is movably arranged in the corner reducer, and one end of the screw rod is fixedly connected with the pull rod seat; Preferably, the multifunctional stirring mechanism comprises a main driving shaft seat, a main driving shaft, a main stirring motor, a main stirring gear, a secondary stirring wall, a secondary stirring core shaft, a secondary stirring gear, a secondary stirring frame, and a rotary stirrer; the main driving shaft seat is fixedly arranged on the supporting crossbeam, the main driving shaft is movably arranged on the supporting crossbeam through a bearing, the main stirring motor is fixedly arranged on the main driving shaft seat, and the shaft end thereof is fixedly connected to the main driving shaft, the main stirring gear is fixedly sleeved on the main driving shaft, the secondary stirring wall is fixedly arranged on the supporting crossbeam, the secondary stirring core shaft is movably arranged on the secondary stirring wall through a bearing, the secondary stirring gear is fixedly sleeved on the secondary stirring core shaft, and meshes with the main stirring gear for transmission, the secondary stirring frame is fixedly arranged at one end of the secondary stirring core shaft away from the secondary stirring gear, and the rotary stirrer is provided with multiple groups, which are fixedly arranged on the secondary stirring frame; Preferably, the multifunctional stirring mechanism further comprises a fixed scraper and a side wall scraper; the fixed scraper is fixedly arranged on the secondary stirring wall, and its bottom is tangent to the bottom of the granulating material disk; the side wall scraper is fixedly arranged on the secondary stirring wall, and its side wall is tangent to the side wall of the granulating material disk; Preferably, the multifunctional stirring mechanism further comprises a corner support, a conical bevel gear, a spiral gear column, a spiral guide sleeve, a support crank arm, a slider guide groove, a support slider, a connecting rod seat, a reciprocating stirring rod, and a reciprocating scraper; the corner support is fixedly arranged at the bottom of the supporting crossbeam, the main drive shaft is movably arranged on one side of the corner support through a bearing, the spiral gear column is movably arranged on the side of the corner support perpendicular to the main drive shaft through a bearing, and the main drive shaft is fixedly arranged with a conical bevel gear at one end away from the main stirring gear and at one end of the spiral gear column. bevel gear, two groups of the conical bevel gear meshing transmission, the spiral guide sleeve is movably sleeved on the spiral gear column for meshing transmission, the support crank arm is fixedly arranged on the spiral guide sleeve, the support slider is fixedly arranged on the support crank arm, the connecting rod seat is fixedly arranged on the supporting slider, the bottom surface of the supporting crossbeam is provided with a slider guide groove, the supporting slider is embedded in the slider guide groove, and moves linearly along the slider guide groove, the reciprocating stirring rod is fixedly arranged on the connecting rod seat, and the reciprocating scraper is fixedly arranged on the reciprocating stirring rod; Preferably, the equipment for preparing lightweight ceramsite using sludge from urban sewage treatment plants also includes a single-barrel spray mechanism, which includes a spray barrel base, a spray barrel, a supporting vertical wall, a rolling bearing seat, a reciprocating tie rod cylinder, a spray motor, an atomizing hole, and a stirring fan; the spray barrel base is fixedly arranged on the supporting crossbeam, the supporting vertical wall is provided with two groups, which are respectively fixedly arranged on both sides of the spray barrel base, the rolling bearing seat is provided with two groups, which are respectively fixedly arranged on the two groups of supporting vertical walls, the spray barrel is movably arranged between the two groups of rolling bearing seats through a short axis, and rotates along the rolling bearing seat, one end of the reciprocating tie rod cylinder is fixedly arranged on the spray barrel base, and the other end is movably hinged to the spray barrel, a spray motor is arranged inside the spray barrel, a plurality of atomizing holes are provided, which are arranged near the end of the inner wall of the spray barrel, and the stirring fan is fixedly arranged on the shaft end of the spray motor; Preferably, the equipment for preparing lightweight ceramsite using sludge from urban sewage treatment plants also includes a multi-stage mesh screen mechanism, which includes a primary mesh screen and a secondary mesh screen, wherein the primary mesh screen includes a mesh screen frame, a mesh screen seat, a vibration spring, an oscillator, a first filter, a primary discharge port, a discharge hopper trough, and a primary discharger, and the secondary mesh screen includes a mesh screen frame, a mesh screen seat, a vibration spring, an oscillator, a second filter, a secondary discharge port, and a tertiary discharge port; the mesh screen seat is fixedly arranged on the mesh screen frame by multiple groups of the vibration springs, the oscillator is fixedly arranged on the mesh screen frame, and the first A filter is fixedly arranged in the mesh seat on the primary mesh screen, and the second filter is fixedly arranged in the mesh seat on the secondary mesh screen. A primary drop-out opening is provided at the bottom of the mesh seat on the primary mesh screen, and a drop-out hopper groove is fixedly arranged along the primary drop-out opening, and a primary discharger is fixedly arranged on the side thereof. A secondary discharge opening is provided on the mesh seat on the secondary mesh screen near the lower side of the second filter, and a tertiary discharge opening is provided near the upper side of the second filter; the mesh holes provided on the first filter are smaller than the mesh holes provided on the second filter; Preferably, the equipment for preparing lightweight ceramsite using sludge from urban sewage plants further comprises an automatic feeding mechanism; the automatic feeding mechanism is fixedly arranged on the hopper trough; Preferably, the equipment for preparing lightweight ceramsite using sludge from urban sewage plants further comprises a guide hopper; the guide hopper is fixedly arranged on the multi-legged base frame, outside the granulation tray, the guide hopper is composed of a storage trough coaxial with the granulation tray and a guide trough fixed on its side wall, and the side wall of the guide hopper is higher than the side wall of the granulation tray; A method for using a device for preparing lightweight ceramsite using sludge from a municipal sewage plant, comprising the following steps: S1, the main rotating motor drives the reducer to rotate, the reducer and the pinion shaft are connected and driven through the sprocket and the chain, thereby driving the pinion shaft to rotate, and the pinion and the large toothed disc are meshed and driven to drive the granulating material disc to rotate along the rotating shaft seat; S2, the angle motor drives the angle screw to move linearly along the axis of the output hole of the angle reducer through the angle reducer, thereby driving the rotating shaft seat to rotate along the angle bearing seat through the pull rod seat and the hinge shaft, thereby changing the angle of the granulator body relative to the ground; S3, the main stirring motor rotates, thereby driving the main stirring gear on the main driving shaft to rotate, and the secondary stirring gear is meshed with the main stirring gear to drive the secondary stirring core shaft to rotate, thereby driving the rotary stirrer to rotate through the secondary stirring frame; S4, when the granulation material disk rotates along the rotation axis, the fixed scraper scrapes the bottom of the granulation material disk, and the side wall scraper scrapes the side wall of the granulation material disk; S5, the main stirring motor rotates, thereby driving the conical bevel gear on the main driving shaft to rotate, and the spiral gear column is driven to rotate through the meshing transmission of the two groups of conical bevel gears, and the spiral guide sleeve is movably sleeved on the spiral gear column and meshes and drives, thereby driving the spiral guide sleeve to move linearly along the axis of the spiral gear column, and the supporting slider is embedded in the slider guide groove and moves linearly along the slider guide groove, thereby driving the reciprocating scraper to move linearly along the axis of the spiral gear column; S6, an external water source is connected, and water is sprayed through the multiple groups of atomizing holes to form water mist, the spray motor drives the stirring fan to rotate, and blows out the water mist sprayed from the atomizing holes, and the reciprocating pull rod cylinder reciprocates linearly, thereby driving the spray barrel to rotate along the rolling bearing seat to cover different positions; S7, the finished ceramsite falls into the storage tank through the granulation tray, slides down along the wall to the guide tank, and falls to the first filter screen; S8, the oscillator works, and the mesh seat is driven to vibrate through the vibration spring; the pelletized ceramsite falls into the first filter on the first-level mesh, the pelletized ceramsite with a diameter smaller than the diameter of the mesh hole of the first filter leaks through the first filter, and slides into the hopper slot through the first-level drop port, the pelletized ceramsite with a diameter larger than the diameter of the mesh hole of the first filter falls into the second filter through the first-level discharger, the pelletized ceramsite with a diameter smaller than the diameter of the mesh hole of the second filter leaks through the second filter and flows out through the second-level discharge port, and the pelletized ceramsite with a diameter larger than the diameter of the mesh hole of the second filter flows out through the third-level discharge port; S9, the raw materials and the pelletized ceramsite with a diameter smaller than the diameter of the first filter mesh fall into the hopper trough and enter the granulation tray through the automatic feeding mechanism; Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up an automatic angle adjustment mechanism, the size and shape of the particles can be controlled by adjusting the inclination angle and rotation speed of the disc to meet the requirements of different materials. The design of this mechanism allows the disc inclination angle to be adjusted within a certain range, which is convenient and quick, thereby meeting the needs of different materials and improving granulation efficiency and production speed by flexibly adjusting process parameters.

[0011] 2. By setting up a multifunctional stirring mechanism, it not only effectively improves the stirring efficiency and the ball forming rate, but also effectively ensures the cleaning of the side wall and bottom of the granulating material plate, effectively prevents sticking, avoids the time and manpower consumption of shutdown for cleaning, improves work efficiency, and reduces labor intensity.

[0012] 3. By setting the main stirring gear, secondary stirring mandrel, secondary stirring gear and conical bevel gear, one motor can simultaneously operate two stirring mechanisms, which not only ensures the functionality of the equipment, but also simplifies the equipment structure, reduces the manufacturing cost, and has a sophisticated structure and strong functionality.

[0013] 4. By setting the spiral tooth column, spiral guide sleeve, supporting crank arm, slider guide groove and supporting slider, the simple structure realizes the linear reciprocating motion of the reciprocating scraper, with exquisite structure, strong practicality and low manufacturing cost.

[0014] 5. By setting a reciprocating stirring rod, the bottom surface of the granulating material plate can be scraped in a compound tangential manner. During the stirring process, the bottom is scraped, which improves the degree of automation of the equipment.

[0015] 6. By setting up a single-barrel spray mechanism, the amount of water mist and the spray angle of water mist in the ball-forming process can be automatically controlled, effectively improving the ball-forming speed and ball-forming quality. According to different situations, the size of the mist can be conveniently adjusted to improve the degree of automation of the equipment.

[0016] 7. By setting up a multi-level mesh screen mechanism, the expanded clay can be automatically classified into multiple levels according to size, and the substandard and bulk materials can be re-mixed for the second time, which improves the product quality of the expanded clay. The substandard ones can be re-mixed for the second time to reduce the loss rate of defective products.

[0017] 8. By setting up an automatic feeding mechanism, on the one hand, the raw materials can be automatically lifted to the granulation tray, reducing the labor intensity of manual labor. On the other hand, the materials that do not meet the size standards and follow the bulk materials can be lifted to the granulation tray for the second time, thus improving the overall automation level of the equipment.

[0018] 9. By setting up the guide hopper, the raw materials and ceramsite falling to the ground during the rotation process are effectively reduced, the pollution of materials around the equipment is reduced, and the surrounding environment is protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings: Figure 1 It is a left side view of the present invention; Figure 2 It is the front view of the present invention; Figure 3 It is a bottom view of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 5 A top view of the present invention; Figure 6 for Figure 1 Schematic diagram of the structure of the cross section in the AA direction; Figure 7 for Figure 6 A partial enlarged schematic diagram of the middle B area; Figure 8 for Figure 5 Structural schematic diagram of the cross section in the CC direction; Fig. 9 for Figure 8 A partial enlarged schematic diagram of the middle D area; Fig.10 for Figure 2 A partial enlarged schematic diagram of the middle E area; Fig.11 for Figure 5 A partial enlarged schematic diagram of the middle F area; Fig.12 for Figure 8 A partial enlarged schematic diagram of the middle G area; Fig.13 for Figure 2 A partial enlarged schematic diagram of the middle H region; Fig.14 for Figure 4 A partial enlarged schematic diagram of the middle J region; In the figure: 1. Granulator body; 101. Multi-leg frame; 102. Rotating shaft seat; 103. Rotating axis; 104. Granulating material plate; 105. Main rotating motor bracket; 106. Main rotating motor; 107. Speed ​​reducer; 108. Gear shaft support; 109. Pinion shaft; 110. Sprocket; 111. Chain; 112. Pinion; 113. Large gear plate; 114. Support column; 115. Support beam; 2. Automatic angle adjustment mechanism; 201. Angular bearing seat; 202. Angular shaft; 203. Tie rod seat ; 204, hinged shaft; 205, reducer corner seat; 206, reducer support seat; 207, hinge sleeve; 208, corner motor seat; 209, corner reducer; 210, corner motor; 211, corner screw; 3, multifunctional stirring mechanism; 301, main drive shaft seat; 302, main drive shaft; 303, main stirring motor; 304, main stirring gear; 305, secondary stirring wall; 306, secondary stirring mandrel; 307, secondary stirring gear; 308, secondary stirring frame; 309, rotary stirrer ; 310, fixed scraper; 311, side scraper; 312, corner support; 313, conical bevel gear; 314, spiral tooth column; 315, spiral guide sleeve; 316, support arm; 317, slider guide groove; 318, support slider; 319, connecting rod seat; 320, reciprocating stirring rod; 321, reciprocating scraper; 4, single barrel spray mechanism; 401, spray barrel base; 402, spray barrel; 403, support wall; 404, rolling bearing seat; 405, reciprocating tie rod cylinder; 406, spray motor; 4 07, atomizing hole; 408, stirring fan; 5, multi-stage mesh screen mechanism; 501, primary mesh screen; 502, mesh screen bottom frame; 503, mesh screen seat; 504, vibration spring; 505, oscillator; 506, first filter; 507, primary drop opening; 508, drop hopper slot; 509, primary discharger; 510, secondary mesh screen; 511, second filter; 512, secondary discharge opening; 513, tertiary discharge opening; 6, automatic feeding mechanism; 7, guide hopper; 701, storage trough; 702, guide trough; DETAILED DESCRIPTION Example 1

[0020] 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.

[0021] See also Figure 1-Figure 14A device for preparing lightweight ceramsite using sludge from a municipal sewage plant comprises a granulator body 1, wherein the granulator body 1 comprises a multi-legged frame 101, a rotating shaft seat 102, a rotating shaft 103, a granulating material plate 104, a main rotating motor bracket 105, a main rotating motor 106, a reducer 107, a gear shaft support 108, a pinion shaft 109, a sprocket 110, a chain 111, a pinion 112, a large toothed disc 113, a supporting column 114, and a supporting crossbeam 115; the rotating shaft seat 102 is fixedly arranged on the On the multi-legged frame 101, the rotating shaft 103 is movably sleeved in the rotating shaft seat 102 through a bearing, the granulating material plate 104 is fixedly arranged on the rotating shaft 103, the main rotating motor bracket 105 is fixedly arranged on the rotating shaft seat 102, the reducer 107 is fixedly arranged on the main rotating motor bracket 105, and the main rotating motor 106 is fixedly connected to the reducer 107 to transmit power; the gear shaft support 108 is fixedly arranged on the main rotating motor bracket 1 05, the pinion shaft 109 is movably sleeved in the gear shaft support 108 through a bearing, the output shaft end of the reducer 107 and the end of the pinion shaft 109 are respectively fixedly provided with a sprocket 110, the two groups of sprockets 110 are connected and transmitted through the chain 111, the pinion 112 is fixedly sleeved on the pinion shaft 109, the large toothed disc 113 is fixedly provided at the bottom of the granulating material disc 104, the pinion 112 is meshed with the large toothed disc 113 for transmission, the support column 1 14 is fixedly arranged on the multi-legged base frame 101, and the supporting crossbeam 115 is fixedly arranged on the supporting column 114; when in use, the main rotating motor 106 drives the reducer 107 to rotate, and the reducer 107 is connected and transmitted with the pinion shaft 109 through the sprocket 110 and the chain 111, thereby driving the pinion shaft 109 to rotate, and the pinion 112 is meshed with the large toothed disc 113 to drive the granulating material disc 104 to rotate along the rotating shaft seat 102; The bottom of the granulator body 1 is fixedly provided with an automatic angle adjustment mechanism 2 for automatically adjusting the granulation angle; The granulator body 1 is fixedly provided with a multifunctional stirring mechanism 3 for stirring the granulation raw materials.

[0022] In some embodiments, see Figure 1 , Figure 7 , Fig. 9The automatic angle adjustment mechanism 2 includes an angular bearing seat 201, an angular shaft 202, a pull rod seat 203, a hinge shaft 204, a reducer angular seat 205, a reducer support seat 206, a hinge sleeve 207, an angular motor seat 208, an angular reducer 209, an angular motor 210, and an angular screw rod 211; the angular bearing seat 201 is provided with two groups, symmetrically arranged on the multi-legged base frame 101, and the rotating shaft seat 102 is movably arranged on the two groups of angular bearing seats through the angular shaft 202 201, the pull rod seat 203 is movably connected with the rotating shaft seat 102 through the hinge shaft 204, the reducer corner seat 205 is fixedly arranged at the bottom of the multi-legged base 101, the reducer support seat 206 is movably arranged on the reducer corner seat 205 through two groups of hinge sleeves 207 fixed at both ends, and can rotate along the hinge sleeves 207, the corner reducer 209 is fixedly arranged on the reducer support seat 206, and the corner motor seat 208 is fixedly arranged on the reducer support seat 206. The corner motor 210 is fixedly arranged on the corner reducer 209, and is connected to the corner reducer 209 to transmit power. The corner screw rod 211 is movably arranged in the corner reducer 209, and one end of the corner screw rod 211 is fixedly connected to the pull rod seat 203. When in use, the corner motor 210 drives the corner screw rod 211 to move linearly along the axis of the output hole of the corner reducer 209 through the corner reducer 209, thereby driving the rotating shaft seat 102 to rotate along the corner bearing seat 201 through the pull rod seat 203 and the hinge shaft 204, thereby changing the angle of the granulator body 1 relative to the ground; by setting an automatic angle adjustment mechanism, by adjusting the inclination angle and rotation speed of the disc, the size and shape of the particles can be controlled to meet the requirements of different materials. The design of this mechanism enables the inclination angle of the disc to be adjusted within a certain range, which is convenient and quick, thereby meeting the needs of different materials, and improving the granulation efficiency and production speed by flexibly adjusting the process parameters.

[0023] In some embodiments, see Figure 10-12The multifunctional stirring mechanism 3 includes a main drive shaft seat 301, a main drive shaft 302, a main stirring motor 303, a main stirring gear 304, a secondary stirring wall 305, a secondary stirring core shaft 306, a secondary stirring gear 307, a secondary stirring frame 308, and a rotating stirrer 309; the main drive shaft seat 301 is fixedly arranged on the supporting crossbeam 115, the main drive shaft 302 is movably arranged on the supporting crossbeam 115 through a bearing, the main stirring motor 303 is fixedly arranged on the main drive shaft seat 301, and its shaft end is fixedly connected to the main drive shaft 302, the main stirring gear 304 is fixedly sleeved on the main drive shaft 302, the secondary stirring wall 305 is fixedly arranged on the supporting crossbeam 115, and the secondary stirring core shaft 306 is movably arranged on the supporting crossbeam 115 through a bearing. The bearing is movably arranged on the secondary stirring wall 305, the secondary stirring gear 307 is fixedly sleeved on the secondary stirring core shaft 306, and meshes with the main stirring gear 304 for transmission, the secondary stirring frame 308 is fixedly arranged on the end of the secondary stirring core shaft 306 away from the secondary stirring gear 307, and the rotary agitator 309 is provided with multiple groups, which are fixedly arranged on the secondary stirring frame 308; when in use, the main stirring motor 303 rotates, thereby driving the main stirring gear 304 on the main driving shaft 302 to rotate, and the secondary stirring gear 307 is meshed with the main stirring gear 304 for transmission, driving the secondary stirring core shaft 306 to rotate, thereby driving the rotary agitator 309 to rotate through the secondary stirring frame 308; In some embodiments, see Fig.12 The multifunctional stirring mechanism 3 further includes a fixed scraper 310 and a side wall scraper 311; the fixed scraper 310 is fixedly arranged on the secondary stirring wall 305, and its bottom is tangent to the bottom of the granulating material disk 104, and the side wall scraper 311 is fixedly arranged on the secondary stirring wall 305, and its side wall is tangent to the side wall of the granulating material disk 104; when in use, when the granulating material disk 104 rotates along the rotation axis 103, the fixed scraper 310 scrapes the bottom of the granulating material disk 104, and the side wall scraper 311 scrapes the side wall of the granulating material disk 104; In some embodiments, see Figure 10-11The multifunctional stirring mechanism 3 also includes a corner support 312, a conical bevel gear 313, a spiral tooth column 314, a spiral guide sleeve 315, a support arm 316, a slider guide groove 317, a support slider 318, a connecting rod seat 319, a reciprocating stirring rod 320, and a reciprocating scraper 321; the corner support 312 is fixedly arranged at the bottom of the supporting beam 115, the main drive shaft 302 is movably arranged on one side of the corner support 312 through a bearing, and the spiral tooth column 314 is movably arranged on the corner support 312 through a bearing and is perpendicular to the main drive shaft 302 On the side, the main driving shaft 302 is fixedly provided with conical bevel gears 313 at one end away from the main stirring gear 304 and at one end of the spiral gear column 314, respectively. The two groups of conical bevel gears 313 are meshed for transmission. The spiral guide sleeve 315 is movably sleeved on the spiral gear column 314 for meshing transmission. The support crank arm 316 is fixedly provided on the spiral guide sleeve 315. The support slider 318 is fixedly provided on the support crank arm 316. The connecting rod seat 319 is fixedly provided on the support slider 318. The bottom surface of the support beam 115 is provided with a slider guide groove 317 The supporting slider 318 is embedded in the slider guide groove 317 and moves linearly along the slider guide groove 317. The reciprocating stirring rod 320 is fixedly arranged on the connecting rod seat 319, and the reciprocating scraper 321 is fixedly arranged on the reciprocating stirring rod 320. When in use, the main stirring motor 303 rotates, thereby driving the conical bevel gear 313 on the main driving shaft 302 to rotate, and the spiral gear column 314 is driven to rotate through the meshing transmission of the two groups of conical bevel gears 313. The spiral guide sleeve 315 is movably sleeved on the spiral gear column 314 for meshing transmission. The spiral guide sleeve 315 is moved linearly along the axis of the spiral tooth column 314, and the support slider 318 is embedded in the slider guide groove 317 and moves linearly along the slider guide groove 317, thereby driving the reciprocating scraper 321 to move linearly along the axis of the spiral tooth column 314; by setting the main stirring gear, the secondary stirring mandrel, the secondary stirring gear, and the conical bevel gear, one motor pair can simultaneously work on the two stirring mechanisms, while ensuring the functionality of the equipment, simplifying the equipment structure, reducing the manufacturing cost, and having a delicate structure and strong functionality. By setting the spiral tooth column, the spiral guide sleeve, the support arm, the slider guide groove, and the support slider, the simple structure realizes the linear reciprocating motion of the reciprocating scraper, and has a delicate structure, strong practicality, and low manufacturing cost. By setting the reciprocating stirring rod, the bottom surface of the granulating material plate can be often scraped in a compound tangent manner. During the stirring process, the bottom is scraped, which improves the automation of the equipment. By setting up a multifunctional stirring mechanism, not only the stirring efficiency is effectively improved, the ball forming rate is increased, but also the cleaning of the side wall and bottom of the granulating material tray is effectively guaranteed, effectively preventing sticking, avoiding the time and manpower consumption of shutdown cleaning, improving work efficiency while reducing manual labor intensity.

[0024] In some embodiments, see Fig.13 The equipment for preparing lightweight ceramsite using sludge from urban sewage plants also includes a single-barrel spray mechanism 4, which includes a spray barrel base 401, a spray barrel 402, a supporting wall 403, a rolling bearing seat 404, a reciprocating tie rod cylinder 405, a spray motor 406, an atomizing hole 407, and an agitating fan 408; the spray barrel base 401 is fixedly arranged on the supporting crossbeam 115, the supporting wall 403 is provided with two groups, which are respectively fixedly arranged on both sides of the spray barrel base 401, the rolling bearing seat 404 is provided with two groups, which are respectively fixedly arranged on two groups of the supporting walls 403, the spray barrel 402 is movably arranged between the two groups of rolling bearing seats 404 through a short axis, and rotates along the rolling bearing seat 404, one end of the reciprocating tie rod cylinder 405 is fixedly arranged on the spray barrel base 401, and the other end is connected to the spray The barrel 402 is movably hinged, and a spray motor 406 is arranged inside the spray barrel 402. The atomizing holes 407 are provided in multiple groups and are arranged near the end of the inner wall of the spray barrel 402. The stirring fan 408 is fixedly arranged on the shaft end of the spray motor 406. When in use, an external water source is connected and sprayed through the multiple groups of atomizing holes 407 to form water mist. The spray motor 406 drives the stirring fan 408 to rotate and blows out the water mist sprayed from the atomizing holes 407. The reciprocating pull rod cylinder 405 reciprocates in a linear motion, thereby driving the spray barrel 402 to rotate along the rolling bearing seat 404 to cover different positions. By setting a single-barrel spray mechanism, the water mist amount and the water mist spraying angle in the ball-forming process can be automatically controlled, effectively improving the ball-forming speed and ball-forming quality. According to different situations, the mist size can be conveniently adjusted to improve the degree of automation of the equipment.

[0025] In some embodiments, see Fig.14The equipment for preparing lightweight ceramsite by using sludge from urban sewage plants also includes a multi-stage mesh screen mechanism 5, which includes a primary mesh screen 501 and a secondary mesh screen 510. The primary mesh screen 501 includes a mesh screen base frame 502, a mesh screen seat 503, a vibration spring 504, an oscillator 505, a first filter screen 506, a primary discharge port 507, a discharge hopper slot 508, and a primary discharger 509. The secondary mesh screen 510 includes a mesh screen base frame 502, a mesh screen seat 503, a vibration spring 504, an oscillator 505, a second filter screen 511, a secondary discharge port 512, and a tertiary discharge port 513. The mesh screen seat 503 is connected by a plurality of groups of The vibration spring 504 is fixedly arranged on the mesh frame 502, the oscillator 505 is fixedly arranged on the mesh frame 502, the first filter 506 is fixedly arranged in the mesh seat 503 on the primary mesh sieve 501, the second filter 511 is fixedly arranged in the mesh seat 503 on the secondary mesh sieve 510, a primary drop opening 507 is opened at the bottom of the mesh seat 503 on the primary mesh sieve 501, and a drop hopper groove 508 is fixedly arranged along the primary drop opening 507, and a primary discharger 509 is fixedly arranged on the side thereof, and the mesh seat 503 on the secondary mesh sieve 510 is fixedly arranged in the mesh seat 503. 03 A secondary discharge port 512 is provided near the lower side of the second filter screen 511, and a tertiary discharge port 513 is provided near the upper side of the second filter screen 511; the sieve holes provided on the first filter screen 506 are smaller than the sieve holes provided on the second filter screen 511; when in use, the oscillator 505 works, and drives the screen seat 503 to vibrate through the vibration spring 504; the pelletized ceramsite falls into the first filter screen 506 on the first-level screen 501, and the pelletized ceramsite with a diameter smaller than the diameter of the sieve holes of the first filter screen 506 leaks through the first filter screen 506, and slides into the drop hopper slot 508 through the first-level drop port 507. The pelletized ceramsite with a diameter larger than the diameter of the mesh hole of the first filter screen 506 falls into the second filter screen 511 through the first discharger 509, the pelletized ceramsite with a diameter smaller than the diameter of the mesh hole of the second filter screen 511 leaks through the second filter screen 511 and flows out through the second discharge port 512, and the pelletized ceramsite with a diameter larger than the diameter of the mesh hole of the second filter screen 511 flows out through the tertiary discharge port 513. By setting up a multi-stage screen mechanism, the ceramsite can be automatically classified into multiple stages according to size, and the substandard and follow-up bulk materials can be secondary stirred, thereby improving the product quality of the finished ceramsite. Those that do not meet the standards can be secondary stirred for utilization, thereby reducing the loss rate of defective products.

[0026] In some embodiments, see Figure 4The equipment for preparing lightweight expanded clay using sludge from urban sewage plants also includes an automatic feeding mechanism 6; the automatic feeding mechanism 6 is fixedly arranged on the hopper slot 508; when in use, the raw materials and the spherical expanded clay with a diameter smaller than the sieve hole diameter of the first filter screen 506 fall into the hopper slot 508, and enter the granulation tray 104 through the automatic feeding mechanism 6; by setting up the automatic feeding mechanism, on the one hand, the raw materials can be automatically lifted to the granulation tray, reducing the labor intensity of manual labor, and on the other hand, the materials that do not meet the size standards and follow the bulk materials can be lifted to the granulation tray for a second time, thereby improving the overall automation level of the equipment.

[0027] In some embodiments, see Figure 4 The equipment for preparing lightweight ceramsite using sludge from urban sewage treatment plants also includes a guide hopper 7; the guide hopper 7 is fixedly arranged on the multi-legged base 101, outside the granulation tray 104, and the guide hopper 7 is composed of a storage trough 701 coaxial with the granulation tray 104 and a guide trough 702 fixed on its side wall, and the side wall of the guide hopper 7 is higher than the side wall of the granulation tray 104; when in use, the finished ceramsite falls into the storage trough 701 through the granulation tray 104, slides down along its wall to the guide trough 702, and falls to the first filter screen 506; by setting the guide hopper, the raw materials and ceramsite falling to the ground during the rotation process is effectively reduced, the pollution of the material to the surrounding of the equipment is reduced, and the surrounding environment is protected.

[0028] A method for using a device for preparing lightweight ceramsite using sludge from a municipal sewage plant, comprising the following steps: S1, the main rotating motor 106 drives the reducer 107 to rotate, the reducer 107 is connected with the pinion shaft 109 through the sprocket 110 and the chain 111, thereby driving the pinion shaft 109 to rotate, and the pinion 112 is meshed with the large toothed disc 113 to drive the granulating material disc 104 to rotate along the rotating shaft seat 102; S2, the corner motor 210 drives the corner screw 211 to move linearly along the axis of the output hole of the corner reducer 209 through the corner reducer 209, thereby driving the rotating shaft seat 102 to rotate along the corner bearing seat 201 through the pull rod seat 203 and the hinge shaft 204, thereby changing the angle of the granulator body 1 relative to the ground; S3, the main stirring motor 303 rotates, thereby driving the main stirring gear 304 on the main driving shaft 302 to rotate, and the secondary stirring gear 307 is meshed with the main stirring gear 304 to drive the secondary stirring core shaft 306 to rotate, thereby driving the rotary stirrer 309 to rotate through the secondary stirring frame 308; S4, when the granulating material disc 104 rotates along the rotating axis 103, the fixed scraper 310 scrapes the bottom of the granulating material disc 104, and the side wall scraper 311 scrapes the side wall of the granulating material disc 104; S5, the main stirring motor 303 rotates, thereby driving the conical bevel gear 313 on the main driving shaft 302 to rotate, and the two groups of conical bevel gears 313 are meshed and driven to drive the spiral gear column 314 to rotate, and the spiral guide sleeve 315 is movably sleeved on the spiral gear column 314 to engage and drive, thereby driving the spiral guide sleeve 315 to move linearly along the axis direction of the spiral gear column 314, and the supporting slider 318 is embedded in the slider guide groove 317 and moves linearly along the slider guide groove 317, thereby driving the reciprocating scraper 321 to move linearly along the axis direction of the spiral gear column 314; S6. An external water source is connected and sprayed through the multiple groups of atomizing holes 407 to form water mist. The spray motor 406 drives the stirring fan 408 to rotate to blow out the water mist sprayed from the atomizing holes 407. The reciprocating tie rod cylinder 405 reciprocates in a linear motion, thereby driving the spray barrel 402 to rotate along the rolling bearing seat 404 to cover different positions. S7, the finished ceramsite falls into the storage tank 701 through the granulation tray 104, slides down along the wall to the guide tank 702, and falls to the first filter screen 506; S8, the oscillator 505 works, and the mesh seat 503 is driven to vibrate through the vibration spring 504; the pelletized ceramsite falls into the first filter 506 on the first-level mesh screen 501, and the pelletized ceramsite with a diameter smaller than the mesh diameter of the first filter 506 leaks through the first filter 506 and slides into the hopper trough 508 through the first-level drop port 507, and the pelletized ceramsite with a diameter larger than the mesh diameter of the first filter 506 falls into the second filter 511 through the first-level discharger 509, and the pelletized ceramsite with a diameter smaller than the mesh diameter of the second filter 511 leaks through the second filter 511 and flows out through the second-level discharge port 512, and the pelletized ceramsite with a diameter larger than the mesh diameter of the second filter 511 flows out through the third-level discharge port 513; S9, the raw materials and the pelletized ceramsite with a diameter smaller than the diameter of the mesh of the first filter screen 506 fall into the hopper trough 508, and enter the granulation tray 104 through the automatic feeding mechanism 6; Obviously, the above embodiments are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A device for preparing lightweight ceramsite using sludge from urban sewage plants, characterized in that: The invention comprises a granulator body (1), wherein the granulator body (1) comprises a multi-legged frame (101), a rotating shaft seat (102), a rotating shaft (103), a granulating material plate (104), a main rotating motor bracket (105), a main rotating motor (106), a speed reducer (107), a gear shaft support (108), a pinion shaft (109), a sprocket (110), a chain (111), a pinion (112), a large toothed plate (113), a supporting column (114), and a plurality of supporting columns (115). ), a supporting crossbeam (115); the rotating shaft seat (102) is fixedly arranged on the multi-legged base frame (101); the rotating shaft center (103) is movably sleeved in the rotating shaft seat (102) through a bearing; the granulating material plate (104) is fixedly arranged on the rotating shaft center (103); the main rotating motor bracket (105) is fixedly arranged on the rotating shaft seat (102); and the reducer (107) is fixedly arranged on the main rotating motor bracket. (105), the main rotating motor (106) is fixedly connected to the reducer (107) to transmit power; the gear shaft support (108) is fixedly arranged on the main rotating motor support (105), the pinion shaft (109) is movably sleeved in the gear shaft support (108) through a bearing, and the output shaft end of the reducer (107) and the end of the pinion shaft (109) are respectively fixedly provided with sprockets (110), and the two sets of sprockets (110) are fixedly arranged on the main rotating motor support (105). 10) connected and transmitted via the chain (111), the pinion (112) is fixedly sleeved on the pinion shaft (109), the large toothed disc (113) is fixedly arranged at the bottom of the pelletizing disc (104), the pinion (112) and the large toothed disc (113) are meshed and transmitted, the support column (114) is fixedly arranged on the multi-legged base frame (101), and the support crossbeam (115) is fixedly arranged on the support column (114); An automatic angle adjustment mechanism (2) for automatically adjusting the granulation angle is fixedly arranged at the bottom of the granulator body (1); A multifunctional stirring mechanism (3) for stirring granulation raw materials is fixedly arranged on the granulator body (1).

2. The device for preparing lightweight ceramsite using sludge from urban sewage plant according to claim 1, characterized in that: The automatic angle adjustment mechanism (2) comprises an angular bearing seat (201), an angular shaft (202), a pull rod seat (203), an articulated shaft (204), a reducer angular seat (205), a reducer support seat (206), a hinge sleeve (207), an angular motor seat (208), an angular reducer (209), an angular motor (210), and an angular screw rod (211); the angular bearing seat (201) is provided in two groups and is symmetrically arranged on the multi-legged base (101); the rotating shaft seat (102) is movably arranged between the two groups of the angular bearing seats (201) via the angular shaft (202); the pull rod seat (203) is movably connected to the rotating shaft seat (102) via the articulated shaft (204); the reducer angular seat ( The reducer support seat (206) is movably mounted on the reducer corner seat (205) through two sets of hinge sleeves (207) fixed at both ends, and can rotate along the hinge sleeves (207). The corner reducer (209) is fixedly mounted on the reducer support seat (206). The corner motor seat (208) is fixedly mounted on the corner reducer (209). The corner motor (210) is fixedly mounted on the corner motor seat (208) and connected to the corner reducer (209) to transmit power. The corner screw rod (211) is movably mounted in the corner reducer (209), and one end of the screw rod (211) is fixedly connected to the pull rod seat (203).

3. The device for preparing lightweight ceramsite using sludge from urban sewage plant according to claim 2, characterized in that: The multifunctional stirring mechanism (3) comprises a main drive shaft seat (301), a main drive shaft (302), a main stirring motor (303), a main stirring gear (304), a secondary stirring wall (305), a secondary stirring core shaft (306), a secondary stirring gear (307), a secondary stirring frame (308), and a rotating stirrer (309); the main drive shaft seat (301) is fixedly arranged on the supporting crossbeam (115), the main drive shaft (302) is movably arranged on the supporting crossbeam (115) via a bearing, the main stirring motor (303) is fixedly arranged on the main drive shaft seat (301), and its shaft end is fixedly connected to the main drive shaft (302); The main stirring gear (304) is fixedly sleeved on the main drive shaft (302), the secondary stirring wall (305) is fixedly mounted on the supporting crossbeam (115), the secondary stirring core shaft (306) is movably mounted on the secondary stirring wall (305) via a bearing, the secondary stirring gear (307) is fixedly sleeved on the secondary stirring core shaft (306) and meshes with the main stirring gear (304) for transmission, the secondary stirring frame (308) is fixedly mounted on the end of the secondary stirring core shaft (306) away from the secondary stirring gear (307), and a plurality of rotary stirrers (309) are provided and fixedly mounted on the secondary stirring frame (308).

4. The device for preparing lightweight ceramsite using sludge from urban sewage plant according to claim 3 is characterized in that: The multifunctional stirring mechanism (3) further comprises a fixed scraper (310) and a side wall scraper (311); the fixed scraper (310) is fixedly arranged on the secondary stirring wall (305), and its bottom is tangent to the bottom of the granulating material disk (104); the side wall scraper (311) is fixedly arranged on the secondary stirring wall (305), and its side wall is tangent to the side wall of the granulating material disk (104).

5. The device for preparing lightweight ceramsite using sludge from urban sewage plant according to claim 4, characterized in that: The multifunctional stirring mechanism (3) further comprises a corner support (312), a conical bevel gear (313), a spiral tooth column (314), a spiral guide sleeve (315), a support crank arm (316), a slider guide groove (317), a support slider (318), a connecting rod seat (319), a reciprocating stirring rod (320), and a reciprocating scraper (321); the corner support (312) is fixedly arranged at the bottom of the supporting crossbeam (115); the main drive shaft (302) is movably arranged on one side of the corner support (312) via a bearing; the spiral tooth column (314) is movably arranged on the corner support (312) and perpendicular to the main drive shaft (302) via a bearing; and an end of the main drive shaft (302) away from the main stirring gear (304) and an end of the spiral tooth column (314) are respectively fixedly arranged. There are conical bevel teeth (313), two groups of the conical bevel teeth (313) meshing and transmission, the spiral guide sleeve (315) is movably sleeved on the spiral tooth column (314) for meshing and transmission, the support crank arm (316) is fixedly arranged on the spiral guide sleeve (315), the support slider (318) is fixedly arranged on the support crank arm (316), the connecting rod seat (319) is fixedly arranged on the supporting slider (318), the bottom surface of the supporting crossbeam (115) is provided with a slider guide groove (317), the supporting slider (318) is embedded in the slider guide groove (317), and moves linearly along the slider guide groove (317), the reciprocating stirring rod (320) is fixedly arranged on the connecting rod seat (319), and the reciprocating scraper (321) is fixedly arranged on the reciprocating stirring rod (320).

6. The device for preparing lightweight ceramsite using sludge from urban sewage plant according to claim 5, characterized in that: The equipment for preparing lightweight ceramsite using sludge from a municipal sewage treatment plant further comprises a single barrel spray mechanism (4), wherein the single barrel spray mechanism (4) comprises a spray barrel base (401), a spray barrel (402), a supporting vertical wall (403), a rolling bearing seat (404), a reciprocating tie rod cylinder (405), a spray motor (406), an atomizing hole (407), and an agitating fan (408); the spray barrel base (401) is fixedly arranged on the supporting crossbeam (115), the supporting vertical wall (403) is provided with two groups, which are respectively fixedly arranged on two sides of the spray barrel base (401), and the rolling bearing seat (404) is provided with two groups, which are respectively fixedly arranged on two sides of the spray barrel base (401). The spray barrel (402) is fixedly arranged on the two groups of supporting walls (403), and is movably arranged between the two groups of rolling bearing seats (404) through a short axis, and rotates along the rolling bearing seats (404). One end of the reciprocating pull rod cylinder (405) is fixedly arranged on the spray barrel base (401), and the other end is movably hinged to the spray barrel (402). A spray motor (406) is arranged inside the spray barrel (402), and a plurality of atomizing holes (407) are arranged on the inner wall of the spray barrel (402) near the end. The stirring fan (408) is fixedly arranged on the shaft end of the spray motor (406).

7. The device for preparing lightweight ceramsite using sludge from urban sewage plant according to claim 6, characterized in that: The equipment for preparing lightweight ceramsite using sludge from a municipal sewage plant further comprises a multi-stage mesh screen mechanism (5), wherein the multi-stage mesh screen mechanism (5) comprises a primary mesh screen (501), a secondary mesh screen (510), and the primary mesh screen (501) comprises a mesh screen base frame (502), a mesh screen seat (503), a vibration spring (504), an oscillator (505), a first filter screen (506), a primary discharge port (507), a discharge hopper slot (508), and a primary discharge port (510). The secondary mesh screen device (510) comprises a mesh screen base frame (502), a mesh screen seat (503), a vibration spring (504), an oscillator (505), a second filter screen (511), a secondary discharge port (512), and a tertiary discharge port (513); the mesh screen seat (503) is fixedly arranged on the mesh screen base frame (502) via a plurality of groups of the vibration springs (504); the oscillator (505) is fixedly arranged on the mesh screen base frame (502); The first filter screen (506) is fixedly arranged in the screen seat (503) on the first-level screen device (501), and the second filter screen (511) is fixedly arranged in the screen seat (503) on the second-level screen device (510). A first-level drop opening (507) is provided at the bottom of the screen seat (503) on the first-level screen device (501), and a drop hopper groove (508) is fixedly arranged along the first-level drop opening (507), and a first-level discharger (509) is fixedly arranged on the side thereof; a second-level discharge opening (512) is provided on the screen seat (503) on the second-level screen device (510) near the lower side of the second filter screen (511), and a third-level discharge opening (513) is provided near the upper side of the second filter screen (511); the sieve holes provided on the first filter screen (506) are smaller than the sieve holes provided on the second filter screen (511).

8. The device for preparing lightweight ceramsite using sludge from urban sewage plant according to claim 7, characterized in that: The equipment for preparing lightweight ceramsite using sludge from a municipal sewage plant further comprises an automatic feeding mechanism (6); the automatic feeding mechanism (6) is fixedly arranged on the hopper trough (508).

9. The device for preparing lightweight ceramsite using sludge from urban sewage plant according to claim 8, characterized in that: The equipment for preparing lightweight ceramsite using sludge from a municipal sewage plant further comprises a guide hopper (7); the guide hopper (7) is fixedly arranged on the multi-legged base frame (101) and outside the granulation material tray (104); the guide hopper (7) comprises a material storage trough (701) coaxial with the granulation material tray (104) and a guide trough (702) fixed on the side wall thereof; the side wall of the guide hopper (7) is higher than the side wall of the granulation material tray (104).

10. The method for using a device for preparing lightweight ceramsite using sludge from a municipal sewage plant according to claim 9, characterized in that: The steps include: S1, the main rotating motor (106) drives the reducer (107) to rotate, the reducer (107) and the pinion shaft (109) are connected and driven via the sprocket (110) and the chain (111), thereby driving the pinion shaft (109) to rotate, and the granulating material disc (104) is driven to rotate along the rotating shaft seat (102) via the meshing transmission between the pinion (112) and the large toothed disc (113); S2, the corner motor (210) drives the corner screw (211) to move linearly along the axis of the output hole of the corner reducer (209) through the corner reducer (209), thereby driving the rotating shaft seat (102) to rotate along the corner bearing seat (201) through the pull rod seat (203) and the hinge shaft (204), thereby changing the angle of the granulator body (1) relative to the ground; S3, the main stirring motor (303) rotates, thereby driving the main stirring gear (304) on the main driving shaft (302) to rotate, and the secondary stirring gear (307) is meshed with the main stirring gear (304) to drive the secondary stirring core shaft (306) to rotate, thereby driving the rotary stirrer (309) to rotate through the secondary stirring frame (308); S4. When the granulating material disk (104) rotates along the rotation axis (103), the fixed scraper (310) scrapes the bottom of the granulating material disk (104), and the side wall scraper (311) scrapes the side wall of the granulating material disk (104); S5, the main stirring motor (303) rotates, thereby driving the conical bevel gear (313) on the main driving shaft (302) to rotate, and the two groups of conical bevel gears (313) are meshed and driven to drive the spiral tooth column (314) to rotate, and the spiral guide sleeve (315) is movably sleeved on the spiral tooth column (314) to mesh and drive, thereby driving the spiral guide sleeve (315) to move linearly along the axis of the spiral tooth column (314), and the supporting slider (318) is embedded in the slider guide groove (317) and moves linearly along the slider guide groove (317), thereby driving the reciprocating scraper (321) to move linearly along the axis of the spiral tooth column (314); S6. An external water source is connected and sprayed through the multiple groups of atomizing holes (407) to form water mist. The spray motor (406) drives the stirring fan (408) to rotate to blow out the water mist sprayed from the atomizing holes (407). The reciprocating tie rod cylinder (405) reciprocates in a linear motion, thereby driving the spray barrel (402) to rotate along the rolling bearing seat (404) to cover different positions. S7, the finished ceramsite falls into the storage trough (701) through the granulation material tray (104), slides down along the wall to the guide trough (702), and falls to the first filter screen (506); S8, the oscillator (505) works, and drives the mesh seat (503) to vibrate through the vibration spring (504); the pelletized ceramsite falls into the first filter screen (506) on the first-level mesh screen (501); the pelletized ceramsite with a diameter smaller than the mesh diameter of the first filter screen (506) leaks through the first filter screen (506) and slides into the hopper trough (508) through the first-level drop opening (507); the pelletized ceramsite with a diameter larger than the mesh diameter of the first filter screen (506) falls into the second filter screen (511) through the first-level discharger (509); the pelletized ceramsite with a diameter smaller than the mesh diameter of the second filter screen (511) leaks through the second filter screen (511) and flows out through the second-level discharge opening (512); and the pelletized ceramsite with a diameter larger than the mesh diameter of the second filter screen (511) flows out through the third-level discharge opening (513); S9, the raw materials and the pelletized ceramsite with a diameter smaller than the diameter of the mesh of the first filter screen (506) fall into the hopper trough (508), and enter the pelletizing material tray (104) through the automatic feeding mechanism (6).

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