Vacuum belt drying cloth device capable of preventing material accumulation

Abstract

This invention discloses a vacuum belt dryer material feeding device to prevent material accumulation, belonging to the field of vacuum belt dryers. The device includes a support assembly; multiple sliding components are mounted side-by-side on the support assembly from top to bottom; the sliding components are connected to each other via a power assembly; the power assembly is mounted on the support assembly; each sliding component has a horizontally connected feeding cylinder; the feeding cylinders are connected to each other via a feeding assembly; and multiple discharge nozzles are vertically arranged side-by-side along the axial direction on the lower part of the circumferential sidewall of any feeding cylinder. The power assembly drives the feeding cylinder to reciprocate linearly on the sliding components, while the feeding assembly simultaneously conveys material into the feeding cylinder. The material is then discharged from the feeding cylinder through the multiple discharge nozzles onto a belt conveyor. This not only effectively avoids material accumulation but also ensures the feeding efficiency of the vacuum belt dryer.

Description

Technical Field

[0001] This invention relates to the field of vacuum belt dryers, and particularly to a vacuum belt dryer fabric device for preventing material accumulation. Background Technology

[0002] Vacuum belt dryers are devices that use a conveyor belt to continuously dry materials in a thin layer under closed vacuum conditions. Due to their advantages such as low drying temperature, high heat transfer efficiency, and good preservation of active ingredients in materials, they are used in the production of herbicides such as diuron.

[0003] Currently, existing vacuum belt dryers often employ a oscillating material distribution device. This device typically consists of a feed pipe, an oscillating drive mechanism, and a material distribution nozzle positioned above the conveyor belt. Driven by a motor, cylinder, or linkage mechanism, the nozzle reciprocates in an arc along the width of the conveyor belt. Under the influence of gravity and feeding pressure, the material is discharged from the nozzle and falls onto the conveyor belt surface, forming a material layer of a certain width and thickness. However, in practical use, since oscillating material distribution devices usually have only one nozzle, if the oscillation speed is too slow, material will not only accumulate in the conveying pipe but also spread in strips on the conveyor belt, affecting the uniformity of material distribution. Conversely, if the oscillation speed is too fast, material may spray to the sides of the conveyor belt, causing equipment contamination. Therefore, there is an urgent need to research a vacuum belt dryer material distribution device that prevents material accumulation to solve these problems. Summary of the Invention

[0004] This invention provides a vacuum belt drying cloth device to prevent material accumulation, which can solve the technical problems in the prior art, such as the easy accumulation of material in the conveying pipe due to the existence of only a single cloth nozzle.

[0005] A vacuum belt drying cloth device for preventing material accumulation includes a support assembly; multiple sliding assemblies are mounted side by side from top to bottom on the support assembly; the multiple sliding assemblies are connected to each other through a power assembly; the power assembly is mounted on the support assembly; cloth cylinders are horizontally connected to each of the multiple sliding assemblies; the multiple cloth cylinders are connected to each other through a feeding assembly; multiple discharge nozzles are vertically arranged side by side along the axial direction on the lower part of the circumferential side wall of any one of the cloth cylinders.

[0006] As a preferred embodiment of the present invention, the support assembly includes a pair of vertically arranged support columns arranged side by side; a first mounting strip and a second mounting strip are horizontally fixed side by side between the two support columns from top to bottom.

[0007] As a preferred embodiment of the present invention, the sliding assembly includes a guide rail parallel to the first mounting plate; both ends of the guide rail are horizontally fixed with connecting rods perpendicular to the first mounting plate; the ends of the two connecting rods away from the guide rail are respectively fixed to two support columns; a pair of sliders are slidably connected side by side on the guide rail; the two sliders are respectively fixed to the two ends of the fabric cylinder.

[0008] As a preferred embodiment of the present invention, the power assembly includes a drive shaft vertically disposed between two support columns and a plurality of elastic telescopic rods arranged horizontally side by side from top to bottom; the upper and lower ends of the drive shaft are respectively rotatably connected to a first mounting strip and a second mounting strip; one end of each of the plurality of elastic telescopic rods is fixed to the drive shaft; the other end of each of the plurality of elastic telescopic rods is respectively rotatably connected to the outer wall of the middle circumference of a plurality of fabric cylinders.

[0009] As a preferred embodiment of the present invention, a geared motor is vertically arranged on one side of the drive shaft; the geared motor is fixed on the second mounting plate; a first gear is fixedly sleeved on the output shaft of the geared motor; a second gear meshes with the first gear; and the second gear is fixedly sleeved on the lower end of the drive shaft.

[0010] As a preferred embodiment of the present invention, the feeding assembly includes a feeding pipe; a feeding pump is installed at the inlet end of the feeding pipe; a plurality of first conveying pipes are connected side by side on the feeding pipe; a material distributor is connected to the end of each of the plurality of first conveying pipes away from the feeding pipe; a pair of second conveying pipes are connected to each of the plurality of material distributors; and the end of each pair of second conveying pipes away from the material distributor is respectively connected to the two ends of the corresponding fabric cylinder.

[0011] As a preferred embodiment of the present invention, a flow regulating valve and a feed pump are installed side by side on each of the first feed pipes.

[0012] As a preferred embodiment of the present invention, a plurality of unloading cylinders are vertically and axially fixedly inserted into the lower part of the circumferential sidewall of the fabric cylinder; a plurality of discharge nozzles are respectively disposed on the lower ends of the plurality of unloading cylinders; a feeding assembly corresponding to the unloading cylinder is installed on the fabric cylinder; the feeding assembly includes a plurality of rotating shafts vertically and rotatably connected to the circumferential sidewall of the fabric cylinder; the plurality of rotating shafts are respectively disposed above the plurality of unloading cylinders; a screw rod is coaxially fixed to the lower end of each of the plurality of rotating shafts; the plurality of screw rods are respectively disposed inside the plurality of unloading cylinders.

[0013] As a preferred embodiment of the present invention, a third gear is fixedly sleeved on the upper end of each of the plurality of rotating shafts; each of the plurality of third gears meshes with a rack; the rack is arranged parallel to the guide rail, and the rack is fixed to the guide rail by a plurality of positioning rods arranged side by side.

[0014] As a preferred embodiment of the present invention, the rotation directions of any two adjacent screw rods are opposite.

[0015] This invention provides a vacuum belt dryer fabric covering device to prevent material accumulation. The device uses a power component to drive the fabric covering cylinder to reciprocate linearly on a sliding component, while a feeding component conveys the material into the fabric covering cylinder. The fabric covering cylinder then discharges the material onto a belt conveyor through multiple outlets. This not only effectively avoids problems such as material accumulation, but also ensures the fabric covering efficiency of the vacuum belt dryer. Attached Figure Description Figure 1 This is a schematic diagram of a vacuum belt drying cloth device for preventing material accumulation, provided by the present invention.

[0016] Figure 2 This is a schematic diagram of the connection between the support component, sliding component, power component and fabric cylinder of the present invention. Figure 3 This is a schematic diagram showing the connection between the sliding component, the cloth cylinder, the feeding component, and the conveying component of the present invention.

[0017] Figure 4 This is a schematic diagram of the power component of the present invention.

[0018] Figure 5 This is a schematic diagram of the feeding assembly of the present invention.

[0019] Figure 6 This is a schematic diagram of the feeding assembly of the present invention disposed on the fabric cylinder.

[0020] Figure 7 This is a schematic diagram of the feeding assembly of the present invention.

[0021] Figure 8 This is a diagram illustrating the usage state of a vacuum belt drying fabric device for preventing material accumulation according to the present invention.

[0022] Explanation of reference numerals in the attached figures: 1-Support assembly, 2-Sliding assembly, 3-Power assembly, 4-Material cylinder, 5-Feeding assembly, 6-Feeding assembly, 101-Support column, 102-First mounting strip, 103-Second mounting strip, 201-Guide rail, 202-Connecting rod, 203-Slider, 301-Drive shaft, 302-Elastic telescopic rod, 303-Geared motor, 304-First gear, 305-Second gear, 401-Discharge nozzle, 402-Discharge cylinder, 501-Feeding pipe, 502-Feeding pump, 503-First conveying pipe, 504-Material distributor, 505-Second conveying pipe, 506-Flow regulating valve, 507-Conveying pump, 601-Rotating shaft, 602-Screw rod, 603-Third gear, 604-Rack, 605-Positioning rod. Detailed Implementation

[0023] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0024] Example 1: like Figures 1-2 and Figure 8 As shown in the figure, an embodiment of the present invention provides a vacuum belt drying and fabric spreading device for preventing material accumulation, including a support assembly 1 vertically bolted to the drying chamber; multiple sliding assemblies 2 are mounted side by side from top to bottom on the support assembly 1; the multiple sliding assemblies 2 are respectively arranged above the inlet ends of multiple belt conveyors; the multiple sliding assemblies 2 are connected to each other through a power assembly 3; the power assembly 3 is mounted on the support assembly 1; each of the multiple sliding assemblies 2 is horizontally connected to a fabric spreading cylinder 4; the multiple fabric spreading cylinders 4 are arranged parallel to the rollers of the belt conveyors; the power assembly 3 can drive the multiple fabric spreading cylinders 4 to reciprocate linearly along the axial direction of the rollers of the belt conveyors on the multiple sliding assemblies 2; the multiple fabric spreading cylinders 4 are connected to each other through a feeding assembly 5; multiple discharge nozzles 401 are arranged vertically side by side along the axial direction on the lower part of the circumferential side wall of any fabric spreading cylinder 4.

[0025] After the feeding component 5 conveys the material to each layer of the feeding cylinder 4, the material is discharged downwards simultaneously from multiple discharge nozzles 401 and falls onto the surface of the belt conveyor of the corresponding layer below. Since multiple discharge nozzles 401 are arranged axially on a feeding cylinder 4, the material no longer falls from one point, but from multiple points on a line at the same time, forming multiple material streams, thereby avoiding the accumulation of material at a single outlet. At the same time, the power component 3 drives the feeding cylinder 4 to reciprocate linearly along the width direction of the belt conveyor, and the movement speed of the feeding cylinder 4 is constant, so that the falling point of each discharge nozzle 401 continuously shifts, spreading the material evenly on the surface of the conveyor belt to form a thin layer of uniform thickness. Because multiple discharge nozzles 401 and multiple layers of feeding cylinder 4 are used in synchronous linear reciprocating motion, not only is the problem of accumulation or splashing caused by improper speed when single nozzle swings and feeds the material overcome, but also the synchronous feeding of multiple layers of dryer is realized, which significantly improves the feeding efficiency and uniformity.

[0026] Example 2: Based on Example 1, as follows Figures 2-3 As shown, in order to stably support each layer of fabric cylinder 4 within the drying chamber and provide precise linear motion guidance, the support assembly 1 includes a pair of vertically arranged support columns 101 arranged side by side; a first mounting strip 102 and a second mounting strip 103 are horizontally bolted side by side between the two support columns 101 from top to bottom; the sliding assembly 2 includes a guide rail 201 parallel to the first mounting strip 102; both ends of the guide rail 201 are horizontally bolted to connecting rods 202 perpendicular to the first mounting strip 102; the ends of the two connecting rods 202 away from the guide rail 201 are respectively bolted to the two support columns 101; a pair of sliders 203 are slidably connected side by side on the guide rail 201; the two sliders 203 are respectively bolted to the two ends of the fabric cylinder 4. Since the connecting rod 202 rigidly connects the guide rail 201 between the two support columns 101, the guide rail 201 can remain horizontal and parallel to the belt conveyor roller. At the same time, the sliders 203 at both ends of the material cylinder 4 slide on the guide rail 201, so that the material cylinder 4 always remains horizontal during reciprocating motion and will not be tilted. This ensures that the spacing between each discharge nozzle 401 and the surface of the conveyor belt is consistent, effectively improving the uniformity of material discharge.

[0027] Among them, such as Figures 2-4As shown, in order to achieve synchronous reciprocating linear motion of multiple fabric cylinders 4, the power assembly 3 includes a drive shaft 301 vertically arranged between two support columns 101 and multiple elastic telescopic rods 302 arranged horizontally side by side from top to bottom; the upper and lower ends of the drive shaft 301 are respectively rotatably connected to the first mounting strip 102 and the second mounting strip 103; one end of each of the multiple elastic telescopic rods 302 is bolted to the drive shaft 301; the other end of each of the multiple elastic telescopic rods 302 is respectively rotatably connected to the outer wall of the middle circumference of the multiple fabric cylinders 4; the multiple elastic telescopic rods 302 are all conventional components in the art, and each consists of a rod cylinder, a spring arranged in the rod cylinder, and a movable rod slidably inserted into the rod cylinder and connected to the spring. When the drive shaft 301 reciprocates, the elastic telescopic rod 302 swings around the drive shaft 301, and its end drives the fabric cylinder 4 to make linear reciprocating motion along the guide rail 201. Since the length of the elastic telescopic rod 302 can be automatically adjusted (extended), when the fabric cylinder 4 moves to the extreme positions at both ends, the telescopic rod will shorten or extend accordingly, thereby converting the rotational motion of the drive shaft 301 into the linear motion of the fabric cylinder 4. This enables one drive shaft 301 to drive the fabric cylinder 4 of all layers to move synchronously through multiple elastic telescopic rods 302, ensuring that the material drop trajectory of each layer is consistent, and also simplifying the control and power system.

[0028] Furthermore, such as Figure 4 As shown, in order to drive the drive shaft 301 to reciprocate or rotate continuously at a set angle, a geared motor 303 is vertically mounted on one side of the drive shaft 301; the geared motor 303 is bolted to the second mounting strip 103; the output shaft of the geared motor 303 is keyed to a first gear 304; a second gear 305 meshes with the first gear 304; the second gear 305 is keyed to the lower end of the drive shaft 301. When the geared motor 303 rotates, it drives the drive shaft 301 to rotate through the meshing of the first gear 304 and the second gear 305. By designing the output shaft of the geared motor 303 to rotate in both directions, the rotation angle and speed of the drive shaft 301 can be precisely controlled, thereby controlling the reciprocating frequency and stroke of the fabric cylinder 4; in addition, the gear transmission also plays a role in reducing speed and increasing torque, making the movement of the fabric cylinder 4 smooth.

[0029] Example 3: Based on Example 2, as follows Figure 3 and Figure 5As shown, in order to evenly distribute the material from the external feeding system to each layer of the fabric cylinder 4 and both ends of each fabric cylinder 4, and to avoid localized interruption or accumulation of material at the discharge nozzle 401 due to uneven feeding, the feeding assembly 5 includes a feeding pipe 501; a feeding pump 502 is installed at the inlet end of the feeding pipe 501; multiple first conveying pipes 503 are connected side by side to the feeding pipe 501; a material distributor 504 is connected to the end of each of the multiple first conveying pipes 503 away from the feeding pipe 501; and the multiple material distributors 504 are all... Conventional structures in this field typically include a material distribution box with a sealed cavity structure, and the material distribution box has an inlet end and a pair of outlet ends arranged side by side; a pair of second conveying pipes 505 are connected to each of the multiple material distributors 504; the end of each pair of second conveying pipes 505 away from the material distributor 504 is respectively connected to the two ends of the corresponding material distribution cylinder 4; a conventional flow regulating valve 506 and a conventional conveying pump 507 in this field are installed side by side on each of the multiple first conveying pipes 503.

[0030] The feed pump 502 transports the material from the storage tank to the feed pipe 501, and then the material is diverted to each of the first feed pipes 503. The feed pump 507 on each of the first feed pipes 503 provides additional conveying power to the material, overcoming pipe resistance and height difference, and ensuring that the material can reach the upper layer of the distribution cylinder 4. The flow regulating valve 506 can adjust the material flow rate entering each layer of the distribution cylinder 4 as needed to adapt to the difference in drying speed of different layers. After the material enters the material distributor 504, it is evenly divided into two paths and fed simultaneously from both ends of the distribution cylinder 4 through the second feed pipe 505. In this way, the material pressure inside the distribution cylinder 4 is more evenly distributed along the axial direction, avoiding the problem of insufficient flow at the far end of the discharge nozzle 401 caused by single-end feeding, thereby ensuring that the discharge volume of all discharge nozzles 401 is consistent.

[0031] Example 4: Based on Example 3, as follows Figure 3 and Figures 6-7As shown, in order to prevent the material from clogging the discharge nozzle 401 inside the material distribution cylinder 4 due to poor flowability, multiple discharge cylinders 402 are vertically interspersed side by side along the axial direction on the lower part of the circumferential sidewall of the material distribution cylinder 4, and the multiple discharge cylinders 402 are all welded to the material distribution cylinder 4; multiple discharge nozzles 401 are respectively disposed on the lower ends of the multiple discharge cylinders 402; the material distribution cylinder 4 is equipped with a feeding assembly 6 corresponding to the discharge cylinders 402; the feeding assembly 6 includes multiple rotating shafts 601 vertically rotatably connected to the circumferential sidewall of the material distribution cylinder 4; the multiple rotating shafts 601 are respectively disposed above the multiple discharge cylinders 402; the lower ends of the multiple rotating shafts 601 are coaxially welded with conventional screw rods 602 in the art; the multiple screw rods 602 are respectively disposed inside the multiple discharge cylinders 402. When the shaft 601 rotates, the screw rod 602 rotates accordingly, forcibly pushing the material in the cloth cylinder 4 downward into the discharge cylinder 402 and out of the discharge nozzle 401. Due to the forced conveying effect of the screw rod 602, even if the material has poor flowability, it will not accumulate in the cloth cylinder 4 or block the discharge nozzle 401, thus ensuring continuous and stable cloth feeding.

[0032] Among them, such as Figure 7 As shown, in order to achieve synchronous rotation of all screw rods 602 and ensure material discharge effect, the upper ends of multiple rotating shafts 601 are keyed with third gears 603; multiple third gears 603 mesh with a rack 604; the rack 604 is arranged parallel to the guide rail 201, and the rack 604 is bolted to the guide rail 201 through multiple side-by-side positioning rods 605; the rotation directions of any two adjacent screw rods 602 are opposite. When the cloth cylinder 4 reciprocates linearly along the guide rail 201 under the drive of the power component 3, since the rack 604 is fixed, the cloth cylinder 4 drives all the third gears 603 on it to move relative to the rack 604. The rack 604 forces the third gears 603 to rotate. Since the rotation directions of the adjacent screw rods 602 are set to opposite, when the cloth cylinder 4 moves linearly in one direction, such as the right-hand screw rod 602, it will push the material downward. When the cloth cylinder 4 moves linearly in another direction, such as the left-hand screw rod 602, it will push the material downward, thus ensuring the material pushing effect.

[0033] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A vacuum belt drying fabric device for preventing material accumulation, comprising a support assembly (1); characterized in that: Multiple sliding components (2) are mounted side by side from top to bottom on the support component (1); the multiple sliding components (2) are connected to each other through a power component (3); the power component (3) is mounted on the support component (1); Each of the sliding components (2) is horizontally connected to a cloth cylinder (4); the cloth cylinders (4) are connected to each other through a feeding component (5); and multiple discharge nozzles (401) are arranged vertically in parallel along the axial direction on the lower part of the circumferential side wall of any cloth cylinder (4).

2. The vacuum belt drying fabric device for preventing material accumulation as described in claim 1, characterized in that, The support assembly (1) includes a pair of vertically arranged support columns (101) arranged side by side; a first mounting strip (102) and a second mounting strip (103) are horizontally fixed side by side between the two support columns (101) from top to bottom.

3. The vacuum belt drying fabric device for preventing material accumulation as described in claim 2, characterized in that, The sliding assembly (2) includes a guide rail (201) parallel to the first mounting strip (102); both ends of the guide rail (201) are horizontally fixed with connecting rods (202) perpendicular to the first mounting strip (102); the ends of the two connecting rods (202) away from the guide rail (201) are respectively fixed to two support columns (101); a pair of sliders (203) are slidably connected side by side on the guide rail (201); the two sliders (203) are respectively fixed to the two ends of the fabric cylinder (4).

4. A vacuum belt drying fabric drying device for preventing material accumulation as described in claim 2 or 3, characterized in that, The power assembly (3) includes a drive shaft (301) vertically arranged between two support columns (101) and a plurality of elastic telescopic rods (302) arranged horizontally side by side from top to bottom; the upper and lower ends of the drive shaft (301) are respectively rotatably connected to the first mounting strip (102) and the second mounting strip (103); one end of each of the plurality of elastic telescopic rods (302) is fixed to the drive shaft (301); the other end of each of the plurality of elastic telescopic rods (302) is respectively rotatably connected to the outer wall of the middle circumference of a plurality of fabric cylinders (4).

5. A vacuum belt drying fabric device for preventing material accumulation as described in claim 4, characterized in that, A geared motor (303) is vertically mounted on one side of the drive shaft (301); the geared motor (303) is fixed on the second mounting strip (103); the output shaft of the geared motor (303) is fixedly sleeved with a first gear (304); a second gear (305) meshes with the first gear (304); the second gear (305) is fixedly sleeved on the lower end of the drive shaft (301).

6. A vacuum belt drying fabric device for preventing material accumulation as described in claim 2, characterized in that, The feeding assembly (5) includes a feeding pipe (501); a feeding pump (502) is installed at the inlet end of the feeding pipe (501); a plurality of first conveying pipes (503) are connected side by side on the feeding pipe (501); a material distributor (504) is connected to one end of each of the plurality of first conveying pipes (503) away from the feeding pipe (501); a pair of second conveying pipes (505) are connected to each of the plurality of material distributors (504); the end of each pair of second conveying pipes (505) away from the material distributor (504) is respectively connected to the two ends of the corresponding cloth cylinder (4).

7. A vacuum belt drying fabric device for preventing material accumulation as described in claim 6, characterized in that, Each of the first conveying pipes (503) is equipped with a flow regulating valve (506) and a conveying pump (507) arranged side by side.

8. A vacuum belt drying fabric device for preventing material accumulation as described in claim 2, characterized in that, The lower part of the circumferential sidewall of the fabric cylinder (4) is vertically fixed and inserted with multiple unloading cylinders (402) in parallel along the axial direction; multiple discharge nozzles (401) are respectively disposed on the lower end of the multiple unloading cylinders (402); the fabric cylinder (4) is equipped with a feeding assembly (6) corresponding to the unloading cylinder (402); the feeding assembly (6) includes multiple rotating shafts (601) vertically rotatably connected to the circumferential sidewall of the fabric cylinder (4); the multiple rotating shafts (601) are respectively disposed above the multiple unloading cylinders (402); the lower end of each of the multiple rotating shafts (601) is coaxially fixed with a screw rod (602); the multiple screw rods (602) are respectively disposed inside the multiple unloading cylinders (402).

9. A vacuum belt drying fabric device for preventing material accumulation as described in claim 8, characterized in that, Each of the multiple rotating shafts (601) has a third gear (603) fixedly sleeved on its upper end; each of the multiple third gears (603) meshes with a rack (604); the rack (604) is arranged parallel to the guide rail (201), and the rack (604) is fixed to the guide rail (201) by multiple positioning rods (605) arranged side by side.

10. A vacuum belt drying fabric device for preventing material accumulation as described in claim 9, characterized in that, The directions of rotation of any two adjacent screw rods (602) are opposite.

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