Pressing device for rotary kiln

Abstract

The utility model discloses a material pressing device for a rotary kiln, which comprises a base, a material pressing plate and a high-pressure jet head, a material plate is arranged on the base, a pair of side supporting plates are symmetrically arranged on the upper end face of the material plate, a back plate is arranged at one ends of the side supporting plates, and the end, away from the back plate, of the material plate extends to the outer side of the base and is provided with a discharging opening. The opposite side ends of the pair of side supporting plates are provided with a pair of material pressing plates in a relatively movable mode. A material pushing plate capable of moving towards the discharging opening is arranged in the back plate. A pair of high-pressure jet heads is symmetrically arranged on the back plate and located in the movable gap area of the side supporting plate and the material pressing plate on the same side. According to the utility model, the material pressing plates which can horizontally move in opposite directions are arranged to horizontally fold and grind materials, so that the problem of flying and collapsing of the materials is effectively avoided; and by arranging a high-pressure air spraying head, in the moving process of the material pressing plate, high-pressure air spraying cleaning is conducted on a gap between the material pressing plate and the side supporting plate on the same side, and the situation that materials fall into the gap and hinder returning of the material pressing plate is prevented.

Description

Technical Field

[0001] This utility model relates to the field of rotary kiln incineration technology, specifically to a pressing device for rotary kilns. Background Technology

[0002] Solid waste comes from a wide range of sources and is generated in large quantities every day. A common method of solid waste disposal is incineration in rotary kilns. However, the existing rotary kiln pressing devices mostly use the pushing force of telescopic hydraulic cylinders to push the material placed at the feed inlet of the rotary kiln into the incinerator. Because they lack a mechanism to crush the material, it is easy for the material to accumulate, stagnate, or even block the internal channels of the kiln, affecting the normal operation and production efficiency of the rotary kiln.

[0003] In the prior art, utility model patent CN202420833585.4 discloses a pressing device for a rotary kiln, including a drive motor, a mounting box, a drive gear set, a drive shaft, a crushing roller, and a grinding device; this utility model provides a pressing device for a rotary kiln. This pressing device for a rotary kiln, by incorporating a grinding device, uses a power cylinder to drive a transmission block, which in turn drives a grinding plate, crushing the material. The material is then pushed into a feed filter, where it is filtered to ensure it is suitable for combustion. This allows the material to be rapidly heated as it falls into the kiln, thus solving the problem of incomplete combustion in traditional equipment when materials of varying sizes fall simultaneously into the kiln.

[0004] The rotary kiln pressing device provided by the aforementioned patent can crush materials entering the rotary kiln through a grinding device. However, the grinding plate in this device clamps and crushes the material by rotating at one end. As the grinding plate closes and the angle decreases, the material is easily squeezed out, causing it to fly away, which poses a certain safety hazard. At the same time, stress concentration at the rotating end of the grinding plate can easily cause equipment damage, and further improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to provide a pressing device for rotary kilns, which aims to improve the existing pressing device for rotary kilns. The grinding plate of the pressing device clamps and crushes the material by rotating at one end, which easily squeezes the material out, causing the material to fly away and posing a certain safety hazard. At the same time, the stress concentration at the rotating end of the grinding plate can easily cause equipment damage.

[0006] This utility model is implemented as follows: A pressing device for a rotary kiln includes a base, a pressing plate, and a high-pressure jet nozzle; a material plate is provided on the base, and a pair of side support plates are symmetrically arranged on the upper surface of the material plate. A back plate is provided at one end of the pair of support plates, and the end of the material plate away from the back plate extends to the outside of the base and is provided with a discharge port; a pair of pressing plates are movably arranged on opposite sides of the pair of side support plates; a pusher plate that can move toward the discharge port is provided in the back plate; a pair of high-pressure jet nozzles are symmetrically arranged on the back plate and are respectively located in the movable gap area between the side support plates and the pressing plate on the same side.

[0007] Preferably, the side support plate includes a first mounting bolt, and a plurality of first mounting bolts are provided on the lower end face of the side support plate. The first mounting bolts are threaded through the material plate and mounted on the base.

[0008] Preferably, the back plate includes second mounting bolts and a plate cavity. The back plate is provided with a plurality of second mounting bolts at positions corresponding to the ends of a pair of side support plates. The back plate is mounted on the ends of the pair of side support plates by the second mounting bolts. The pusher plate is movably disposed in the plate cavity.

[0009] Preferably, the base is further provided with a first hydraulic oil pump, a second hydraulic oil pump, and a high-pressure air pump; each of the opposite ends of the pair of side support plates is provided with a first hydraulic telescopic cylinder, the pair of first hydraulic telescopic cylinders are simultaneously connected to the first hydraulic oil pump, and the pair of pressing plates are respectively movably set through the first hydraulic telescopic cylinders on the same side; the end of the pusher plate away from the side support plate is connected to a second hydraulic telescopic cylinder, the second hydraulic telescopic cylinder is connected to the second hydraulic oil pump; and the pair of high-pressure jet heads are simultaneously connected to the high-pressure air pump.

[0010] Preferably, the first hydraulic telescopic cylinder is provided with a first telescopic column, and the side support plate is provided with a through hole corresponding to the position of the first telescopic column, and the first telescopic column is connected to the pressure plate through the through hole.

[0011] Preferably, the pressure plate includes a first mounting cylinder, on which a plurality of first locking bolts are sequentially arranged along its circumference, and the first telescopic column is detachably mounted on the first mounting cylinder by means of the first locking bolts.

[0012] Preferably, the second hydraulic telescopic cylinder includes a second telescopic column, and a second mounting cylinder is provided on the pusher plate at the position corresponding to the second telescopic column. A plurality of second locking bolts are sequentially provided on the second mounting cylinder along its circumference. The second telescopic column is detachably mounted on the second mounting cylinder by means of the second locking bolts.

[0013] Preferably, the high-pressure air pump further includes an air supply duct and a duct connection valve; the air outlet of the high-pressure air pump is connected to the air supply duct through the duct connection valve, and the air supply duct is connected to the high-pressure jet head via a branch pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, by setting up a pressing plate that can move horizontally in opposite directions, can horizontally close and crush the material, which can prevent the material from flying off due to unbalanced pressure.

[0016] 2. By setting a high-pressure jet nozzle, this utility model can clean the gap between the pressure plate and the side support plate on the same side with high-pressure jet during the movement of the pressure plate, preventing waste from falling into it and hindering the return of the pressure plate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a front view of the assembly structure of the side support plate and the back plate of this utility model;

[0019] Figure 3 This is a rear view assembly structure diagram of the side support plate and back plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the first hydraulic telescopic cylinder and the first hydraulic oil pump of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the pressure plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the connection structure between the second hydraulic telescopic cylinder and the second hydraulic oil pump of this utility model;

[0023] Figure 7 This is a schematic diagram of the pusher plate of this utility model.

[0024] In the diagram: 1. Base; 2. Material plate; 201. Discharge port; 3. Side support plate; 301. First mounting bolt; 302. Through hole; 4. Back plate; 401. Second mounting bolt; 402. Plate cavity; 5. First hydraulic telescopic cylinder; 501. First telescopic column; 6. Pressure plate; 601. First mounting cylinder; 602. First locking bolt; 7. First hydraulic oil pump; 701. First oil supply pipe; 8. Second hydraulic telescopic cylinder; 801. Second telescopic column; 9. Push plate; 901. Second mounting cylinder; 902. Second locking bolt; 10. Second hydraulic oil pump; 1001. Second oil supply pipe; 11. High-pressure air pump; 12. Pipe connection valve; 13. Air supply pipe; 14. High-pressure jet nozzle. Detailed Implementation

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example 1

[0027] like Figure 1 , Figure 2 and Figure 3As shown, a pressing device for a rotary kiln includes a base 1, a pressing plate 6, and a high-pressure jet head 14. A material plate 2 is mounted on the base 1. A pair of side support plates 3 are symmetrically arranged on the upper surface of the material plate 2. Each side support plate 3 includes a first mounting bolt 301, and multiple first mounting bolts 301 are arranged on the lower surface of the side support plate 3. The first mounting bolts 301 pass through the material plate 2 and are threaded onto the base 1. The side support plates 3, the material plate 2, and the base 1 are simultaneously connected by the first mounting bolts 301, facilitating installation and disassembly while ensuring stable fixation and preventing structural loosening. A back plate 4 is provided at one end of each pair of side support plates 3. The back plate 4 includes a second mounting bolt 401 and a plate cavity 402. Multiple second mounting bolts 401 are arranged on the back plate 4 corresponding to the ends of the pair of side support plates 3, and the back plate 4 is mounted to the ends of the pair of side support plates 3 by the second mounting bolts 401. The end of the material plate 2 away from the back plate 4 extends to the outside of the base 1 and is provided with a discharge port 201; a pair of side support plates 3 are provided with a pair of pressure plates 6 on their opposite sides, which can move relative to each other; a pusher plate 9 is provided in the back plate 4 and can move toward the discharge port 201; the pusher plate 9 is movably disposed in the plate cavity 402. In the non-extended state, the pressure plates 6 in the plate cavity 402 can be compressed normally without affecting the normal operation of the pressure plates 6.

[0028] like Figure 1 , Figure 4 and Figure 5As shown, a pair of high-pressure jet nozzles 14 are symmetrically arranged on the back plate 4, located in the gap area between the side support plate 3 and the pressure plate 6 on the same side. During the movement of the pressure plate 6, a gap will be generated between the pressure plate 6 and the side support plate 3 on the same side. The high-pressure jet nozzles 14 blow air into the gap to clean it, preventing material from spilling out and avoiding the pressure plate 6 from being jammed by material when it returns. The high-pressure air pump 11 also includes an air supply duct 13 and a duct connection valve 12; the air outlet of the high-pressure air pump 11 is connected to the air supply duct 13 through the duct connection valve 12, and the air supply duct 13 is connected to the high-pressure jet nozzles 14 by a branch pipe. The base 1 is also equipped with a first hydraulic oil pump 7, a second hydraulic oil pump 10, and a high-pressure air pump 11. A first hydraulic telescopic cylinder 5 is installed on each of the opposite ends of a pair of side support plates 3. Both first hydraulic telescopic cylinders 5 are connected to the first hydraulic oil pump 7. A pair of pressure plates 6 are movably mounted via the first hydraulic telescopic cylinders 5 on the same side. The first hydraulic oil pump 7 is equipped with a first oil supply pipe 701, through which hydraulic oil can be supplied to the first hydraulic telescopic cylinder 5, thereby controlling the normal telescopic function of the first hydraulic telescopic cylinder 5. A first telescopic column 501 is installed on the first hydraulic telescopic cylinder 5. A through hole 302 is provided on the side support plate 3 corresponding to the position of the first telescopic column 501. The first telescopic column 501 passes through the through hole 302 and connects to the pressure plate 6. The pressure plate 6 includes a first mounting cylinder 601. Multiple first locking bolts 602 are sequentially arranged along the circumference of the first mounting cylinder 601. The first telescopic column 501 is detachably mounted on the first mounting cylinder 601 via the first locking bolts 602. The cylinder bore, rod diameter, and seal model must be exactly the same. The length and diameter of the oil inlet and return lines of the two cylinders must be the same to reduce pressure loss differences along the flow path and avoid flow differences caused by manufacturing errors. The pressure of the two cylinders is monitored by a pressure sensor, and the proportional relief valve is adjusted to make the output force equal. The oil output by the pump is evenly distributed to the two cylinders through the flow divider and combiner valve. When returning oil, the combiner valve ensures synchronous retraction.

[0029] like Figure 1 , Figure 6 and Figure 7As shown, the end of the pusher plate 9 furthest from the side support plate 3 is connected to a second hydraulic telescopic cylinder 8, which is connected to a second hydraulic oil pump 10. A second oil supply pipe 1001 is provided on the second hydraulic oil pump 10, through which hydraulic oil can be supplied to the interior of the second hydraulic telescopic cylinder 8, thereby controlling the normal telescopic function of the second hydraulic telescopic cylinder 8. A pair of high-pressure jet nozzles 14 are simultaneously connected to a high-pressure air pump 11. The second hydraulic telescopic cylinder 8 includes a second telescopic column 801. A second mounting cylinder 901 is provided on the pusher plate 9 at a position corresponding to the second telescopic column 801. Multiple second locking bolts 902 are sequentially arranged along the circumference of the second mounting cylinder 901. The second telescopic column 801 is detachably mounted on the second mounting cylinder 901 via the second locking bolts 902. Both the first hydraulic telescopic cylinder 5 and the second hydraulic telescopic cylinder 8 are four-column hydraulic cylinders, which consist of a piston, piston rod, cylinder body, seals, and hydraulic oil. The piston and piston rod are the core components of a hydraulic cylinder. The piston rod is connected to the piston, and the piston moves linearly under the pressure of hydraulic oil. The working principle of a four-column hydraulic cylinder is to use the pressure of hydraulic oil to transmit force and move the working load through the movement of the piston. When hydraulic oil enters the cylinder body, the pressure of the hydraulic oil acts on the piston, causing the piston to move forward or backward. The piston rod, through its connection with the piston, converts the piston's movement into mechanical energy, thereby realizing the movement of the working load. Example 2

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, a pressing device for a rotary kiln includes a base 1, a pressing plate 6, and a high-pressure jet head 14. A material plate 2 is disposed on the base 1, and a pair of side support plates 3 are symmetrically disposed on the upper end face of the material plate 2. The side support plates 3 include first mounting bolts 301, and multiple first mounting bolts 301 are disposed on the lower end face of the side support plates 3. The first mounting bolts 301 are threaded through the material plate 2 and installed on the base 1. A back plate 4 is disposed at one end of the pair of side support plates 3. The back plate 4 includes second mounting bolts 401 and a plate cavity 402. Multiple second mounting bolts 401 are disposed on the back plate 4 at positions corresponding to the ends of the pair of side support plates 3. The back plate 4 is installed on the ends of the pair of side support plates 3 by the second mounting bolts 401. The end of the material plate 2 away from the back plate 4 extends to the outside of the base 1 and is provided with a discharge port 201; a pair of side support plates 3 are provided with a pair of pressure plates 6 that can move relative to each other at their opposite sides; a pusher plate 9 that can move toward the discharge port 201 is provided in the back plate 4; the pusher plate 9 is movably provided in the plate cavity 402.

[0031] like Figure 1 , Figure 4 and Figure 5As shown, a pair of high-pressure jet nozzles 14 are symmetrically arranged on the back plate 4, and are respectively located in the movable gap area between the side support plate 3 and the pressure plate 6 on the same side. The high-pressure air pump 11 also includes an air supply pipe 13 and a pipe connection valve 12; the air outlet of the high-pressure air pump 11 is connected to the air supply pipe 13 through the pipe connection valve 12, and the air supply pipe 13 is connected to the high-pressure jet nozzles 14 through a pipe. The base 1 is also provided with a first hydraulic oil pump 7, a second hydraulic oil pump 10 and a high-pressure air pump 11; a first hydraulic telescopic cylinder 5 is provided on the opposite side ends of the pair of side support plates 3, and the pair of first hydraulic telescopic cylinders 5 are simultaneously connected to the first hydraulic oil pump 7. The pair of pressure plates 6 are respectively movable through the first hydraulic telescopic cylinders 5 on the same side; a first telescopic column 501 is provided on the first hydraulic telescopic cylinder 5, and a through hole 302 is provided on the side support plate 3 corresponding to the position of the first telescopic column 501. The first telescopic column 501 passes through the through hole 302 and connects to the pressure plate 6. The pressure plate 6 includes a first mounting cylinder 601, and a plurality of first locking bolts 602 are arranged sequentially along its circumference on the first mounting cylinder 601. The first telescopic column 501 is detachably mounted on the first mounting cylinder 601 through the first locking bolts 602.

[0032] like Figure 1 , Figure 6 and Figure 7 As shown, a second hydraulic telescopic cylinder 8 is connected to the end of the pusher plate 9 away from the side support plate 3. The second hydraulic telescopic cylinder 8 is connected to a second hydraulic oil pump 10. A pair of high-pressure jet nozzles 14 are simultaneously connected to a high-pressure air pump 11. The second hydraulic telescopic cylinder 8 includes a second telescopic column 801. A second mounting cylinder 901 is provided on the pusher plate 9 at a position corresponding to the second telescopic column 801. A plurality of second locking bolts 902 are sequentially provided on the second mounting cylinder 901 along its circumference. The second telescopic column 801 is detachably mounted on the second mounting cylinder 901 by means of the second locking bolts 902.

[0033] Working principle: During use, the material is placed between a pair of pressing plates 6. Then, the first hydraulic telescopic cylinder 5 drives the pressing plates 6 to crush the material, thereby breaking down large particles. After crushing, the pressing plates 6 return to their original state. During the movement of the pressing plates 6, high-pressure air jets are used to clean the gap between the pressing plates 6 and the side support plates 3 on the same side, preventing particles from falling into the gap and obstructing the return of the pressing plates 6. The pusher plate 9 is driven by the second hydraulic telescopic cylinder 8 to push the material to the discharge port 201.

[0034] In summary, this utility model, by setting a pressing plate 6 that can move horizontally in opposite directions, can horizontally close and crush the material, thus preventing the material from flying off due to unbalanced pressure. By setting a high-pressure jet nozzle 14, high-pressure jet cleaning can be performed on the gap between the pressing plate 6 and the side support plate 3 on the same side during the movement of the pressing plate 6, preventing material from falling into it and obstructing the return of the pressing plate 6.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressing device for a rotary kiln, comprising a base (1), characterized in that, It also includes a pressure plate (6) and a high-pressure jet head (14); a material plate (2) is provided on the base (1), a pair of side support plates (3) are symmetrically provided on the upper end of the material plate (2), a back plate (4) is provided at one end of the pair of support plates (3), and a discharge port (201) is provided at the end of the material plate (2) away from the back plate (4) on the outside of the base (1); a pair of pressure plates (6) are provided on the opposite side ends of the pair of side support plates (3); a pusher plate (9) that can move toward the discharge port (201) is provided in the back plate (4); a pair of high-pressure jet heads (14) are symmetrically provided on the back plate (4) and are respectively located in the movable gap area between the side support plate (3) and the pressure plate (6) on the same side.

2. The pressing device for a rotary kiln according to claim 1, characterized in that, The side support plate (3) includes a first mounting bolt (301). The lower end face of the side support plate (3) is provided with a plurality of first mounting bolts (301). The first mounting bolts (301) pass through the material plate (2) and are threaded onto the base (1).

3. The pressing device for a rotary kiln according to claim 1, characterized in that, The back plate (4) includes a second mounting bolt (401) and a plate cavity (402). The back plate (4) is provided with a plurality of second mounting bolts (401) at the positions corresponding to the ends of a pair of side support plates (3). The back plate (4) is installed at the ends of a pair of side support plates (3) by means of the second mounting bolts (401). The pusher plate (9) is movably disposed in the plate cavity (402).

4. The pressing device for a rotary kiln according to claim 1, characterized in that, The base (1) is also provided with a first hydraulic oil pump (7), a second hydraulic oil pump (10) and a high-pressure air pump (11); a first hydraulic telescopic cylinder (5) is provided on the opposite side ends of a pair of side support plates (3), and the pair of first hydraulic telescopic cylinders (5) are connected to the first hydraulic oil pump (7) at the same time. The pair of pressing plates (6) are respectively moved through the first hydraulic telescopic cylinders (5) on the same side; the end of the pusher plate (9) away from the side support plate (3) is connected to the second hydraulic telescopic cylinder (8), and the second hydraulic telescopic cylinder (8) is connected to the second hydraulic oil pump (10); the pair of high-pressure jet heads (14) are connected to the high-pressure air pump (11) at the same time.

5. A pressing device for a rotary kiln according to claim 4, characterized in that, The first hydraulic telescopic cylinder (5) is provided with a first telescopic column (501), and the side support plate (3) is provided with a through hole (302) corresponding to the position of the first telescopic column (501). The first telescopic column (501) passes through the through hole (302) and connects to the pressure plate (6).

6. A pressing device for a rotary kiln according to claim 5, characterized in that, The pressure plate (6) includes a first mounting cylinder (601), and a plurality of first locking bolts (602) are arranged sequentially along its circumference on the first mounting cylinder (601). The first telescopic column (501) is detachably mounted on the first mounting cylinder (601) by means of the first locking bolts (602).

7. A pressing device for a rotary kiln according to claim 4, characterized in that, The second hydraulic telescopic cylinder (8) includes a second telescopic column (801). A second mounting cylinder (901) is provided on the pusher plate (9) at the position corresponding to the second telescopic column (801). A plurality of second locking bolts (902) are arranged sequentially on the second mounting cylinder (901) along its circumferential direction. The second telescopic column (801) is detachably mounted on the second mounting cylinder (901) by means of the second locking bolts (902).

8. A pressing device for a rotary kiln according to claim 4, characterized in that, The high-pressure air pump (11) also includes an air supply pipe (13) and a pipe connection valve (12); the air outlet of the high-pressure air pump (11) is connected to the air supply pipe (13) through the pipe connection valve (12), and the air supply pipe (13) is connected to the high-pressure jet head (14) through a branch pipe.

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