Lightweight aggregate preparation device using river silt

Abstract

The invention discloses a light aggregate preparation device using river sludge, relates to the technical field of light aggregate preparation, and solves the problems that the existing sludge treatment device is poor in sludge treatment effect due to the fact that garbage or stones are difficult to separate, and the production cost is low when ceramsite is produced. The problems of large occupied area and resource waste due to the fact that extrusion granulation of a granulator, rounding treatment of a shaping screening machine, preheating and roasting of a rotary kiln and cooling of a cooling machine are needed in the prior art are solved. The light aggregate preparation device using the river sludge comprises a box body, supporting columns are installed at the four end corners of the lower end face of the box body, a feeding device is arranged on one side of the upper end face of the box body, and a filtering device is arranged on the upper portion of the interior of the box body through a movable cavity. According to the device, the land occupation cost is saved, meanwhile, sludge can be pretreated, filtered garbage and stones can be conveniently cleaned, and the sieve plate can be conveniently replaced, so that ceramsite with different diameters can be obtained.

Description

Technical Field

[0001] This invention relates to the field of lightweight aggregate preparation technology, specifically to a lightweight aggregate preparation device using river silt. Background Technology

[0002] Currently, the development of lightweight aggregates is moving towards green and environmentally friendly directions, and many new types of lightweight aggregates made from silted marine mud, tailings powder, diatomaceous earth, etc., have emerged. River sludge, mainly composed of hydrated aluminosilicates, is characterized by fine particles, high plasticity, and strong binding force. It is a clay resource that can be used to produce artificial aggregate—ceramsite. Ceramsite is a type of artificial lightweight aggregate, and ceramsite and its formulated lightweight aggregate concrete have been widely used in many fields. The high-temperature environment during ceramsite production provides conditions for the harmless treatment and resource utilization of urban sludge. Using sludge, fly ash, and clay as raw materials, granules are made. The organic harmful components are completely decomposed or burned during the subsequent sintering process, while heavy metals are solidified in the ceramsite. Therefore, combining ceramsite production with the resource utilization of sludge can not only improve energy efficiency and reduce energy consumption in ceramsite production, but also fundamentally eliminate the hazards of sludge.

[0003] The production process of expanded clay aggregate generally includes raw material processing, batching, mixing, pelletizing, drying and pre-firing, co-firing, cooling, and screening. River sludge is used as the main raw material for expanded clay aggregate production, and the main raw material processing requires sludge dewatering through pressure filtration. During the firing process, the raw material softens under high temperature and acquires a certain viscosity, allowing it to flow and deform under external force. Simultaneously, gas is generated within the raw material, creating internal pressure that causes the softened, viscous raw material to expand, ultimately forming a porous, lightweight aggregate.

[0004] Typical silt in irrigation canals contains not only silt but also a large amount of garbage or stones. Existing silt treatment devices are unable to separate these garbage or stones, resulting in poor silt treatment efficiency. Furthermore, the production of ceramsite requires granulation by a granulator, rounding by a shaping and screening machine, preheating and calcination by a rotary kiln, and cooling by a cooler, which requires a large area and wastes resources. Therefore, these methods do not meet the current needs. To address this, we propose a lightweight aggregate preparation device using river silt. Summary of the Invention

[0005] The purpose of this invention is to provide a lightweight aggregate preparation device using river silt, in order to solve the problems mentioned in the background art, such as the difficulty of separating these garbage or stones in existing silt treatment devices, resulting in poor silt treatment effect, and the need for granulation, spherical processing, preheating and calcination in rotary kiln, and cooling in cooler, which require large area and waste of resources.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lightweight aggregate preparation device using river silt, comprising a box body, with support columns installed at the four corners of the lower end face of the box body, a feeding device provided on one side of the upper end face of the box body, a filtering device provided above the upper part of the box body through a movable cavity, a scraping device connected above the filtering device via a transmission device, a mixing chamber provided below the movable cavity, a granulation chamber provided below the mixing chamber, a sieve plate provided on the inner side of the granulation chamber, a shaping chamber provided below the granulation chamber, a cooling chamber provided below the shaping chamber, a feeding device provided above one side of the outer surface of the box body, an aggregate box installed below the other side of the outer surface of the box body, a horizontal groove provided above the front end face of the box body, a vertical groove A provided on one side below the front end face of the box body, a connecting plate movably provided behind the inner side of the vertical groove A via a snap-fit ​​device, and the connecting plate being fixedly connected to the sieve plate.

[0007] Preferably, the feeding device includes a feeding hopper, and a motor A is fixedly installed on the upper part of the inside of the feeding hopper by a support frame. The output end of the motor A is fixedly connected to a vertical shaft. A spiral blade is sleeved on the upper part of the outer surface of the vertical shaft, and a bevel gear A is sleeved on the lower part of the outer surface of the vertical shaft.

[0008] Preferably, the transmission device includes a horizontal shaft, a bevel gear B is sleeved on one side of the outer surface of the horizontal shaft, the bevel gear B meshes with the bevel gear A, a driving gear is sleeved at both ends of the outer surface of the horizontal shaft, a crossbar is provided at both the front and rear of the horizontal shaft, a driven gear is sleeved at both ends of the crossbar, a conveyor belt is sleeved on the outer surface of every two driven gears and the driving gear, and a plurality of serrations are evenly arranged on the inner surface of the conveyor belt, the serrations meshing with the driving gear and the driven gear.

[0009] Preferably, the scraping device includes two threaded blocks, an external thread is provided in the middle of the outer surface of the crossbar, the threaded blocks are screwed into the external thread, a base plate is installed on the lower end face of the threaded blocks, a plurality of springs are evenly installed on the lower end face of the base plate, a scraper is fixedly connected to the lower end face of the springs, a through groove is provided on the upper end face of the scraper, and an inclined surface A is provided on the rear end face of the scraper.

[0010] Preferably, the filtration device includes a partition plate, the upper end face of which is provided with a square groove, the upper end face of which is provided with a plurality of filter holes, and the rear end face of the inner wall of the square groove is provided with an inclined surface B.

[0011] Preferably, both sides of the inner wall of the transverse groove are provided with strip grooves B, and strip plates are movably provided on the inner side of the strip grooves B. The strip plates are fixedly connected to the partition. Threaded holes A are provided on the front and back of opposite sides of the outer surfaces of the two strip plates. Threaded holes B are provided on the front and back of the upper sides of both sides of the outer surface of the box. Threaded posts are provided on the inner side of the threaded holes B, and the threaded posts are threadedly connected to the threaded holes A and B.

[0012] Preferably, motors B are installed on both sides of the front end face of the feeding device, and crushing rollers are arranged on both sides of the upper part of the feeding device. The output end of the motor B is fixedly connected to the front end face of the crushing rollers through a coupling. The rear end face of the crushing rollers is rotatably connected to the inner wall of the feeding device through a bearing. The lower end face of the feeding device extends to the inner side of the mixing chamber.

[0013] Preferably, a pressure plate is movably connected to the inner side of the granulation chamber via an electric push rod B. A motor C is installed on the other side of the inner wall of the granulation chamber via a vertical groove B. A lead screw is rotatably connected to the lower end face of the motor C. A threaded plate is sleeved on the outer surface of the lead screw. An mounting plate is fixedly connected to one side of the opposite outer surface of the two threaded plates. A cutting blade is installed on the lower end face of the mounting plate. The movable cavity is connected to the mixing chamber via a connecting groove A. The mixing chamber is connected to the granulation chamber via a guide groove and a discharge pipe. A solenoid valve is installed on the inner side of the discharge pipe. The granulation chamber is connected to the shaping chamber via a connecting groove B. The shaping chamber is connected to the cooling chamber via a connecting groove C. The cooling chamber is connected to the collection box via a connecting groove D.

[0014] Preferably, multiple nozzles are evenly installed on the top surface of the inner wall of the shaping chamber, and multiple components are rotatably installed inside the shaping chamber. The outer wall of the forming roller is provided with spiral patterns. A heat insulation layer is provided on the outer side of the shaping chamber, and a cooling layer is provided on the outer side of the cooling chamber. A U-shaped cold water pipe is provided on the inner side of the cooling layer. A water inlet is provided on one side below the rear end face of the box body. The water inlet is connected to the U-shaped cold water pipe through water pipe A. A water outlet is provided on one side of the water inlet. The water outlet is connected to the U-shaped cold water pipe through water pipe B. A cover plate is threaded onto the outer surface of the water outlet.

[0015] Preferably, the upper and lower surfaces of the connecting plate are provided with slots, the locking device includes a strip groove A, an electric push rod A is installed on the inner wall of the strip groove A, and a locking block is installed at the other end of the electric push rod A through a horizontal plate. The strip groove A and the vertical groove A are connected through a strip groove C, and the locking block passes through the connecting groove C. The locking block is adapted to the slot.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention, equipped with a feeding device, a transmission device, and a scraping device, feeds sludge into the movable chamber through a feeding hopper. The sludge is first stirred by spiral blades to prevent solidification. Simultaneously, motor A drives bevel gear A to rotate, which in turn drives bevel gear B, thereby rotating the horizontal shaft and the drive gear. The conveyor belt then transports the sludge, causing two driven gears to rotate, which in turn rotates two crossbars. A threaded block moves on the outer surface of the crossbars, causing the base plate to move, which in turn moves the scraper, thus scraping the sludge on the partition plate. The mud is scraped and the sludge enters the mixing chamber through the filter holes. A large amount of garbage and stones remain in the square trough. When it needs to be cleaned, first unscrew the threaded column, and then pull the partition forward with the handle. When the inclined plane A contacts the inclined plane B, the inclined plane B continues to move forward, pushing the inclined plane A upward. The scraper moves upward under the action of the spring and leaves the square trough. The partition can be removed from the horizontal groove to clean the garbage and stones in the square trough. This invention can pre-treat the sludge and facilitate the cleaning of the filtered garbage and stones.

[0018] 2. This invention, by sequentially arranging a feeding device, a material feeding device, a mixing chamber, a shaping chamber, and a cooling chamber inside the housing from top to bottom, can complete the preparation of ceramsite, saving space costs. Furthermore, by setting up a locking device and a sieve plate, and controlling the electric push rod A, the locking block can be driven away from the inner side of the locking slot, releasing the restriction on the connecting plate. The sieve plate and connecting plate can be removed from the inner side of the vertical groove A by pulling the plate. This invention saves costs and facilitates the replacement of the sieve plate to produce ceramsite of different diameters. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a main sectional view of the entire invention;

[0021] Figure 3 This is a schematic diagram of the scraping device of the present invention;

[0022] Figure 4 This is a partial structural schematic diagram of the transmission device of the present invention;

[0023] Figure 5 This is a side sectional view of the scraping device of the present invention;

[0024] Figure 6 This is a side sectional view of the pelleting chamber of the present invention.

[0025] In the diagram: 1. Box body; 2. Collection box; 3. Feeding device; 301. Feed hopper; 302. Vertical shaft; 303. Bevel gear A; 304. Motor A; 305. Spiral blade; 4. Feeding device; 5. Transmission device; 501. Bevel gear B; 502. Horizontal shaft; 503. Crossbar; 504. Conveyor belt; 505. Driven gear; 506. Sawtooth; 507. Driven gear; 6. Mixing bin; 7. Granulation bin; 701. Screen plate; 702. Connecting plate; 703. Clamping device. 8. Groove; 9. Shaping chamber; 10. Cooling chamber; 11. Scraping device; 1001. Threaded block; 1002. Scraper; 1003. Through groove; 1004. Base plate; 1005. Spring; 1006. Inclined surface A; 11. Snap-fit ​​device; 1101. Snap-fit ​​block; 1102. Electric push rod A; 1103. Strip groove A; 12. Filter device; 1201. Partition plate; 1202. Square groove; 1203. Filter hole; 1204. Inclined surface B; 13. Horizontal groove; 14. Vertical groove A. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] The motor A304 (model YS7134), electric actuator A1102 (model LBP40), motor B (model 68KTYZ), motor C (model 68KTYZ), and electric actuator B (model ANT-35) mentioned in this invention can all be obtained from the market or through private customization.

[0028] Please see Figures 1 to 6 One embodiment of the present invention provides a lightweight aggregate preparation device using river silt, comprising a box body 1, with support columns installed at the four corners of the lower end face of the box body 1, a feeding device 3 provided on one side of the upper end face of the box body 1, a filter device 12 provided above the interior of the box body 1 through a movable cavity, a scraping device 10 being driven to the top of the filter device 12 through a transmission device 5, a mixing chamber 6 provided below the movable cavity, a granulation chamber 7 provided below the mixing chamber 6, and a granulation chamber 7 provided inside the granulation chamber 7. The box has a sieve plate 701, a shaping chamber 8 is located below the granulation chamber 7, a cooling chamber 9 is located below the shaping chamber 8, a feeding device 4 is located above one side of the outer surface of the box body 1, a collection box 2 is installed below the other side of the outer surface of the box body 1, a horizontal groove 13 is located above the front face of the box body 1, a vertical groove A14 is located on one side below the front face of the box body 1, and a connecting plate 702 is movably installed behind the inner side of the vertical groove A14 through a snap-fit ​​device 11. The connecting plate 702 is fixedly connected to the sieve plate 701.

[0029] The feeding device 3 includes a feeding hopper 301. A motor A304 is fixedly mounted on the upper part of the feeding hopper 301 via a support frame. A vertical shaft 302 is fixedly connected to the output end of the motor A304. A spiral blade 305 is sleeved on the upper part of the outer surface of the vertical shaft 302, and a bevel gear A303 is sleeved on the lower part of the outer surface of the vertical shaft 302. The transmission device 5 includes a horizontal shaft 502. A bevel gear B501 is sleeved on one side of the outer surface of the horizontal shaft 502, meshing with the bevel gear A303. Both ends of the outer surface of the horizontal shaft 502 are fitted with driving gears 507. Horizontal rods 503 are provided at both the front and rear of the horizontal shaft 502, and driven gears 505 are sleeved at both ends of each horizontal rod 503. Each pair of horizontal rods... A conveyor belt 504 is fitted onto the outer surfaces of the driven gear 505 and the driving gear 507. The inner surface of the conveyor belt 504 is uniformly provided with multiple serrations 506. The serrations 506 mesh with the driving gear 507 and the driven gear 505. When the motor A304 is working, it can drive the vertical shaft 302 to rotate, thereby driving the spiral blade 305 and the bevel gear A303 to rotate. The spiral blade 305 can stir the sludge and prevent it from solidifying. The bevel gear A303 can drive the bevel gear B501 to rotate, thereby driving the horizontal shaft 502 to rotate, driving the driving gear 507 to rotate. The conveyor belt 504 conveys the sludge, thereby driving the two driven gears 505 to rotate, and then driving the two horizontal bars 503 to rotate.

[0030] The scraping device 10 includes two threaded blocks 1001. An external thread is provided in the middle of the outer surface of the crossbar 503. The threaded blocks 1001 are screwed into the external thread. A base plate 1004 is installed on the lower end face of the threaded blocks 1001. A plurality of springs 1005 are evenly installed on the lower end face of the base plate 1004. A scraper 1002 is fixedly connected to the lower end face of the springs 1005. A through groove 1003 is provided on the upper end face of the scraper 1002. An inclined surface A1006 is provided on the rear end face of the scraper 1002. When the crossbar 503 rotates, the threaded blocks 1001 can move on the outer surface of the crossbar 503, thereby driving the base plate 1004 to move, and then driving the scraper 1002 to move. The filter device 12 includes a partition 1201, with a square groove 1202 on the upper surface of the partition 1201. Multiple filter holes 1203 are evenly distributed on the upper surface of the square groove 1202, and an inclined surface B1204 is provided on the rear end face of the inner wall of the square groove 1202. When the inclined surface A1006 contacts the inclined surface B1204, the inclined surface B1204 moves forward, pushing the inclined surface A1006 upward. Under the action of the spring 1005, the scraper 1002 moves upward and leaves the square groove 1202.

[0031] Both sides of the inner wall of the transverse groove 13 are provided with strip grooves B. Strip plates are movably provided on the inner side of the strip grooves B. The strip plates are fixedly connected to the partition plate 1201. Threaded holes A are provided on the front and back of the opposite side of the outer surface of the two strip plates. Threaded holes B are provided on the front and back of the upper sides of both sides of the outer surface of the box 1. Threaded posts are provided on the inner side of the threaded holes B, and the threaded posts are threadedly connected to the threaded holes A and B. By unscrewing the threaded posts, the threaded posts can be removed from the threaded holes A and B. The strip plates are contacted and limited, and the partition plate 1201 can be pulled out from the transverse groove 13.

[0032] Motors B are installed on both sides of the front end face of the feeding device 4. Crushing rollers are installed on both sides of the upper part of the feeding device 4. The output end of the motor B is fixedly connected to the front end face of the crushing roller through a coupling. The rear end face of the crushing roller is rotatably connected to the inner wall of the feeding device 4 through a bearing. The lower end face of the feeding device 4 extends to the inner side of the mixing chamber 6, so that the raw materials to be used can be crushed first and then added to the mixing chamber 6 to facilitate uniform mixing later.

[0033] The inner side of the pelleting chamber 7 is movably connected to a pressure plate via an electric push rod B. A motor C is installed on the other side of the inner wall of the pelleting chamber 7 via a vertical groove B. A lead screw is rotatably connected to the lower end face of the motor C. A threaded plate is fitted onto the outer surface of the lead screw. An mounting plate is fixedly connected to one side of the opposite outer surface of the two threaded plates. A cutting blade is installed on the lower end face of the mounting plate. The movable chamber is connected to the mixing chamber 6 via a connecting groove A. The mixing chamber 6 is connected to the pelleting chamber 7 via a guide groove and a discharge pipe. A solenoid valve is installed inside the discharge pipe. The pelleting chamber 7 is connected to the shaping chamber 8 via a connecting groove B. The shaping chamber 8 is connected to the cooling chamber 9 via a connecting groove C. The cooling chamber 9 is connected to the collection box 2 via a connecting groove D. The operation of the electric push rod B moves the pressure plate to one side. The operation of the motor C drives the lead screw to rotate, thereby moving the threaded plate on the outer surface of the lead screw. The mounting plate moves up and down, thereby moving the cutting blade up and down to cut the extruded sludge.

[0034] Multiple nozzles are evenly installed on the top surface of the inner wall of the shaping chamber 8. Multiple components are rotatably installed inside the shaping chamber 8, and spiral patterns are formed on the outer wall of each forming roller. A heat insulation layer is installed on the outer side of the shaping chamber 8, and a cooling layer is installed on the outer side of the cooling chamber 9. A U-shaped cold water pipe is installed on the inner side of the cooling layer. A water inlet is located on one side below the rear end face of the housing 1, and the water inlet is connected to the U-shaped cold water pipe via water pipe A. A water outlet is located on one side of the water inlet, and the water outlet is connected to the U-shaped cold water pipe via water pipe B. The outer surface of the outlet is connected to a cover plate by threads. The cut ceramsite falls into the forming roller. The spiral pattern on the forming roller drives the ceramsite to rotate and move downward. As the ceramsite rotates and moves, its roundness gradually increases, changing from a cylindrical shape to an approximately circular shape. The nozzle is connected to high-temperature steam to dry the ceramsite. In addition, a heat insulation layer is set to prevent the temperature inside the forming chamber 8 from affecting the cooling chamber 9. After being dried, the ceramsite enters the cooling chamber 9 and is cooled down before being collected in the collection box 2.

[0035] Both the upper and lower ends of the connecting plate 702 are provided with slots 703. The locking device 11 includes a strip groove A1103. An electric push rod A1102 is installed on the inner wall of the strip groove A1103. The other end of the electric push rod A1102 is equipped with a locking block 1101 through a horizontal plate. The strip groove A1103 and the vertical groove A14 are connected through the strip groove C. The locking block 1101 passes through the connecting groove C and is adapted to the slot 703. The locking block 1101 can pass through the connecting groove C and be locked into the inner side of the slot 703 to limit the connection plate 702. By controlling the electric push rod A1102, the locking block 1101 can be driven away from the inner side of the slot 703 and contact the limiting of the connection plate 702, so that the screen plate 701 can be replaced.

[0036] The lightweight aggregate preparation device using river silt is operated by first connecting the power supply. Inside the housing 1, from top to bottom, are a feeding device 3, a feeding unit 4, a mixing chamber 6, a shaping chamber 8, and a cooling chamber 9, which facilitates the preparation of ceramsite, saving space costs. A transmission device 5 and a scraping device 10 are used to feed the silt into the active chamber through the feeding hopper 301. The silt is first stirred by the spiral blades 305 to prevent solidification. Simultaneously, the motor A304 drives the bevel gear A303. The rotation of bevel gear A303 drives bevel gear B501, which in turn drives horizontal shaft 502, which in turn drives drive gear 507. Conveyor belt 504 then drives two driven gears 505, which in turn drive two crossbars 503. Threaded block 1001 moves on the outer surface of crossbar 503, which in turn moves base plate 1004, which in turn moves scraper 1002 to scrape the sludge on partition 1201. The sludge then enters mixing chamber 6 through filter holes 1203. A large amount of garbage and stones remain in the square groove 1202. When cleaning is required, first unscrew the threaded post, then pull the partition 1201 forward using the handle. When the inclined plane A1006 contacts the inclined plane B1204, the inclined plane B1204 continues to move forward, pushing the inclined plane A1006 upward. Under the action of the spring 1005, the scraper 1002 moves upward and leaves the square groove 1202, allowing the partition 1201 to be removed from the transverse groove 13, and the garbage and stones in the square groove 1202 to be cleaned. The process involves cleaning, and by using a locking device 11 and a screen plate 701, the electric push rod A1102 can be controlled to move the locking block 1101 away from the inside of the slot 703, releasing the restriction on the connecting plate 702. The screen plate 701 and the connecting plate 702 can then be removed from the inside of the vertical groove A14 by pulling the plate. This invention saves space costs, can pre-treat sludge, facilitates the cleaning of filtered garbage and stones, and makes it easy to replace the screen plate 701 to obtain ceramsite of different diameters.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lightweight aggregate preparation device using river silt, comprising a box (1), wherein support columns are installed at the four corners of the lower end face of the box (1), characterized in that: A feeding device (3) is provided on one side of the upper end face of the box (1). A filter device (12) is provided above the interior of the box (1) through a movable cavity. A scraping device (10) is connected above the filter device (12) through a transmission device (5). A mixing chamber (6) is provided below the movable cavity. A granulation chamber (7) is provided below the mixing chamber (6). A sieve plate (701) is provided on the inner side of the granulation chamber (7). A shaping chamber (8) is provided below the granulation chamber (7). A cooling chamber (9) is provided below the box (1). A feeding device (4) is provided above one side of the outer surface of the box (1). A collection box (2) is installed below the other side of the outer surface of the box (1). A horizontal groove (13) is provided above the front end face of the box (1). A vertical groove A (14) is provided on one side below the front end face of the box (1). A connecting plate (702) is movably provided behind the inner side of the vertical groove A (14) through a snap-fit ​​device (11). The connecting plate (702) is fixedly connected to the screen plate (701).

2. The lightweight aggregate preparation device using river silt according to claim 1, characterized in that: The feeding device (3) includes a feeding hopper (301). A motor A (304) is fixedly installed on the upper part of the inside of the feeding hopper (301) by a support frame. A vertical shaft (302) is fixedly connected to the output end of the motor A (304). A spiral blade (305) is sleeved on the upper part of the outer surface of the vertical shaft (302), and a bevel gear A (303) is sleeved on the lower part of the outer surface of the vertical shaft (302).

3. The lightweight aggregate preparation device using river silt according to claim 2, characterized in that: The transmission device (5) includes a horizontal shaft (502), a bevel gear B (501) is sleeved on one side of the outer surface of the horizontal shaft (502), the bevel gear B (501) meshes with the bevel gear A (303), both ends of the outer surface of the horizontal shaft (502) are sleeved with driving gears (507), and a crossbar (503) is provided at both the front and rear of the horizontal shaft (502), both ends of the crossbar (503) are sleeved with driven gears (505), and a conveyor belt (504) is sleeved on the outer surface of every two driven gears (505) and the driving gear (507), and a plurality of serrations (506) are evenly arranged on the inner surface of the conveyor belt (504), the serrations (506) mesh with the driving gear (507) and the driven gear (505).

4. The lightweight aggregate preparation device using river silt according to claim 2, characterized in that: The scraping device (10) includes two threaded blocks (1001). An external thread is provided in the middle of the outer surface of the crossbar (503). The threaded blocks (1001) are screwed into the external thread. A base plate (1004) is installed on the lower end face of the threaded blocks (1001). A plurality of springs (1005) are evenly installed on the lower end face of the base plate (1004). A scraper (1002) is fixedly connected to the lower end face of the springs (1005). A through groove (1003) is provided on the upper end face of the scraper (1002). An inclined surface A (1006) is provided on the rear end face of the scraper (1002).

5. The lightweight aggregate preparation device using river silt according to claim 1, characterized in that: The filter device (12) includes a partition (1201), the upper end face of the partition (1201) is provided with a square groove (1202), the upper end face of the square groove (1202) is uniformly provided with a plurality of filter holes (1203), and the rear end face of the inner wall of the square groove (1202) is provided with an inclined surface B (1204).

6. The lightweight aggregate preparation device using river silt according to claim 5, characterized in that: Both sides of the inner wall of the transverse groove (13) are provided with strip grooves B. A strip plate is movably provided on the inner side of the strip groove B. The strip plate is fixedly connected to the partition plate (1201). Threaded holes A are provided on the front and back sides of the outer surfaces of the two strip plates. Threaded holes B are provided on the front and back sides of the upper sides of the outer surface of the box body (1). Threaded posts are provided on the inner side of the threaded holes B, and the threaded posts are threadedly connected to the threaded holes A and B.

7. The lightweight aggregate preparation device using river silt according to claim 1, characterized in that: Motors B are installed on both sides of the front end face of the feeding device (4). Crushing rollers are provided on both sides of the upper part of the feeding device (4). The output end of the motor B is fixedly connected to the front end face of the crushing roller through a coupling. The rear end face of the crushing roller is rotatably connected to the inner wall of the feeding device (4) through a bearing. The lower end face of the feeding device (4) extends to the inner side of the mixing chamber (6).

8. The lightweight aggregate preparation device using river silt according to claim 1, characterized in that: The inner side of the granulation chamber (7) is movably connected to a pressure plate via an electric push rod B. The other side of the inner wall of the granulation chamber (7) is provided with a motor C via a vertical groove B. The lower end face of the motor C is rotatably connected to a lead screw. The outer surface of the lead screw is fitted with a threaded plate. The two outer surfaces of the threaded plates are fixedly connected to an mounting plate on opposite sides. The lower end face of the mounting plate is equipped with a cutting blade. The movable cavity is connected to the mixing chamber (6) via a connecting groove A. The mixing chamber (6) is connected to the granulation chamber (7) via a guide groove and a discharge pipe. The inner side of the discharge pipe is equipped with a solenoid valve. The granulation chamber (7) is connected to the shaping chamber (8) via a connecting groove B. The shaping chamber (8) is connected to the cooling chamber (9) via a connecting groove C. The cooling chamber (9) is connected to the collection box (2) via a connecting groove D.

9. A lightweight aggregate preparation device using river silt according to claim 1, characterized in that: Multiple nozzles are evenly installed on the top surface of the inner wall of the shaping chamber (8). Multiple components are rotatably installed inside the shaping chamber (8). Spiral patterns are opened on the outer wall of the forming roller. A heat insulation layer is provided on the outer side of the shaping chamber (8). A cooling layer is provided on the outer side of the cooling chamber (9). A U-shaped cold water pipe is provided on the inner side of the cooling layer. A water inlet is provided on one side below the rear end face of the box (1). The water inlet is connected to the U-shaped cold water pipe through water pipe A. A water outlet is provided on one side of the water inlet. The water outlet is connected to the U-shaped cold water pipe through water pipe B. A cover plate is threadedly connected to the outer surface of the water outlet.

10. A lightweight aggregate preparation device using river silt according to claim 1, characterized in that: The upper and lower surfaces of the connecting plate (702) are provided with slots (703). The snap-fit ​​device (11) includes a strip groove A (1103). An electric push rod A (1102) is installed on the inner wall of the strip groove A (1103). The other end of the electric push rod A (1102) is equipped with a snap block (1101) through a horizontal plate. The strip groove A (1103) and the vertical groove A (14) are connected through a strip groove C. The snap block (1101) passes through the connecting groove C and is adapted to the slot (703).

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