CN212455556U

CN212455556U - Automatic material feed bin of unloading

Info

Publication number: CN212455556U
Application number: CN202020805741.8U
Authority: CN
Inventors: 张德顺; 陈栋; 蒋嘉炜; 满谊江
Original assignee: Suzhou Zhenyu Environmental Protection Technology Co ltd
Current assignee: Suzhou Zhenyu Environmental Protection Technology Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-02-02
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses an automatic material feed bin of unloading, its base that includes frame construction, be provided with the storehouse body on the base, storehouse body bottom is provided with pipy discharge gate, the discharge gate below transversely sets up a knife gate valve, knife gate valve below sets up a screw conveyer, screw conveyer includes upper portion opening and intercommunication discharge gate, lower part confined box, the level rotationally sets up a rotation axis in the box, a motor drive the rotation axis horizontal rotation, the box lower part sets up a material export, the rotation axis with the material export is provided with two sets of helical blade, and is two sets of helical blade's direction of rotation is opposite for central symmetry. The utility model discloses controllably, push away the material to the material outlet discharge continuously, can accurate control material discharge, and the discharge amount avoids the material extravagant or polluted environment.

Description

Automatic material feed bin of unloading

Technical Field

The utility model belongs to the field of machinery, concretely relates to automatic discharge's material feed bin.

Background

At present, in order to facilitate storage, space saving, environmental protection, energy saving and other needs of some enterprises, produced or needed materials are put into a closed stock bin through various modes for storage. After a period of storage, collection and discharge from the silo when needed for further processing. The liquid or the granular solid with good fluidity and no hardening has no problem no matter from the storage volume and the size of the discharge opening. However, solid materials having poor flowability, hardening tendency, and bridging tendency are very difficult to discharge due to their characteristics. Therefore, the storage bin volume is generally made smaller and the discharge port is made larger. The disadvantages of this type of silo are: 1. the volume is small, and a large amount of the liquid cannot be stored at one time; 2. the discharge port is large, the discharge speed is high and is difficult to control; the discharge area is large, the material is easy to scatter and is not easy to be sent into a container of next process equipment; 3. the discharge port is large and is not easy to seal. In addition, the common valve plate for closing the discharge port is driven by a driving device to horizontally move back and forth on the supporting strip so as to close or open the discharge port. Because materials are accumulated on the supporting strips, the valve plate can deviate from the supporting strips, so that the valve plate is deformed, moves and is jammed, and faults occur; in addition, the sealing is not tight, the leakage of materials is caused, the waste is caused, and the environment is polluted. How to provide a stable, reliable and automatic discharging material bin is a technical problem to be solved urgently at present.

Disclosure of Invention

To above-mentioned shortcoming, combine the design production experience for many years, the utility model provides an ejection of compact is controlled easily, the switching freely, be difficult for the bridge, discharge smooth and easy, valve plate job stabilization's automatic discharge's material feed bin.

The technical scheme of the utility model is to provide automatic discharge's material feed bin, its base that includes frame construction, be provided with the storehouse body on the base, the storehouse body includes the slope bottom surface, slope bottom surface bottom is provided with pipy discharge gate, the discharge gate below transversely sets up a sword gate valve, its characterized in that: the knife gate valve comprises a cylindrical valve body, a horizontally arranged valve plate and a first driving device, wherein the first driving device is used for driving the valve plate to horizontally move so as to open or close the valve body, the valve plate comprises a front end and a rear end, a supporting strip used for supporting the valve plate is arranged below the valve plate, a plurality of guide pressing blocks used for limiting are arranged above the valve plate, the guide pressing blocks are horizontally arranged on the inner wall of the valve body at intervals, a spiral conveyor is arranged below the knife gate valve, the spiral conveyor comprises an upper opening and is communicated with a discharge port and a box body with a closed lower part, a rotating shaft is horizontally and rotatably arranged in the box body, a motor drives the rotating shaft to horizontally rotate, a material outlet is arranged at the lower part of the box body, and two groups of spiral blades are symmetrically arranged by taking the material outlet as a center, the rotation directions of the two groups of helical blades are opposite.

Preferably, the device further comprises at least one bridge breaking device arranged along the bottom surface of the slope, wherein the bridge breaking device comprises a sliding frame arranged along the bottom surface of the slope and facing the discharge hole, and a second driving device connected with a push rod and driving the sliding frame to reciprocate along the bottom surface of the slope.

Preferably, the discharge port is a rectangular opening located at the center of the discharge port, the two slope bottom surfaces are symmetrically arranged by taking the center line of the discharge port as a symmetry axis, and the sliding frames of the two bridge breaking devices are respectively arranged on one slope bottom surface.

Preferably, the bin body is of a cylindrical structure, the sliding frame is of an arched frame structure made of section steel, the sliding frame comprises a chord edge and an arc edge, the chord edge of the sliding frame faces the discharge hole, and a steel plate used for closing the discharge hole is arranged at the rear part of the chord edge of the sliding frame.

Preferably, the sliding frame is provided with a main beam coaxial with the push rod, the bottom surface of the main beam is provided with a sliding groove along the length direction of the main beam, and the bottom surface of the slope is provided with at least one guide block which protrudes out of the bottom surface of the slope and is positioned in the sliding groove.

Preferably, the cross section of the section steel is a right trapezoid, the right waist of the section steel is located in the advancing direction of the carriage, and the oblique waist of the section steel is located in the retreating direction of the carriage.

Preferably, the front end of the valve plate is provided with an inclined plane which is inclined upwards from the front end to the rear end, the valve body close to the front end of the valve plate is provided with a static pressing block, the static pressing block is provided with an inclined plane matched with the valve plate shape, the static pressing block is arranged at the stroke end point of the valve plate, and the inclined plane of the static pressing block is in surface contact with the inclined plane of the valve plate.

Preferably, a scraper abutting against the valve plate is arranged on the valve body close to the rear end of the valve plate.

Preferably, the guide pressing block abuts against the valve plate, and a guide slope surface is arranged on the side surface of the guide pressing block facing the rear end.

The utility model discloses an automatic material feed bin of unloading has following beneficial effect:

1) the purpose of breaking the bridge is achieved by the back and forth movement of the sliding frame, and smooth material discharge is ensured; in addition, the sliding frame can be used for sealing the discharge port at the stroke end, the requirement of additionally arranging a sealing structure is avoided, the cost is further reduced, and the operation is simplified.

2) The valve plate is limited by the guide pressing block arranged above the valve plate, and the guide pressing block is matched with the front end inclined plane of the valve plate, so that materials accumulated on the supporting strip are removed in the closing process of the valve plate, and the stability is improved; the wedge-shaped static pressing block is arranged at the stroke end point of the valve plate to fix the valve plate, so that the sealing property of the valve plate is greatly improved;

3) through the screw conveyer that has the different helical blade of two sets of helical direction, controllably, push away the material to the material outlet discharge continuously, can accurate control material discharge, and the discharge amount avoids the material extravagant or polluted environment.

Drawings

FIG. 1 is a schematic structural view of an automatic discharge material bin of the present invention;

FIG. 2 is a schematic structural view of the cartridge body;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

FIG. 6 is a schematic structural view of a valve plate;

FIG. 7 is an enlarged view of a portion of FIG. 6 at E;

fig. 8 is a schematic structural view of the screw conveyor.

Detailed Description

The following describes in further detail embodiments of the present invention.

As shown in fig. 1 to 8, the material bin with the bridge-breaking device of the present invention includes a base 10 having a frame structure, a bin 12 and a support 14 supporting the bin 12 are disposed on the base 10. The bin body 12 is of a cylindrical structure, two semicircular slope bottom surfaces 16 form a conical bottom of the bin body 12, and a rectangular gap, namely a discharge hole 18, is formed between the two slope bottom surfaces 16. The two slope bottom surfaces 16 are symmetrically arranged by taking the central line of the discharge hole 18 as a symmetry axis.

The device also comprises 2 bridge breaking devices 20, wherein each bridge breaking device 20 comprises a sliding frame 22 which is arranged along the bottom surface 16 of the slope and is opposite to the discharge hole 18 and a first driving device 24, and the first driving device 24 is connected with the sliding frame 22 through a push rod 26 and drives the sliding frame 22 to reciprocate along the bottom surface 16 of the slope. The first drive mechanism 24 is of a conventional construction that can be conveniently selected by one of ordinary skill in the art, and typically employs a hydraulic cylinder or a motor-driven lead screw that drives the carriage 22 in a reciprocating motion, with the carriage 22 being driven in a reciprocating motion by the lead screw.

The carriages 22 of the two breaking bridges 20 are each arranged on a ramp floor 16. The carriage 22 is an arcuate frame structure made of a section steel 27 having a right trapezoid cross section, and includes a chord side 28 and an arc side 30. The section steel 27 has a right-angled trapezoidal cross section, with a right-angled waist 36 of the section steel 27 in the forward direction of the carriage 22 and an angled waist 38 of the section steel in the rearward direction of the carriage 22. The function of this structure of the section steel is that when the carriage 22 moves forward, the right-angled waist 36 of the section steel pushes the material forward with the largest contact surface, achieving the function of breaking the bridge; when the carriage 22 is returned to the rear, the inclined waist 38 of the section steel is sloped to reduce the resistance of the material.

The chord edge 28 of the carriage 22 faces the spout 18 and the rear of the chord edge 28 of the carriage 22 is provided with a gap for closing the middle of the carriage 22, thereby closing the steel plate 32 of the spout 18, the width of the steel plate 32 being the same as the width of the spout 18. When the two carriages 22 break the bridge, the stroke of the two carriages 22 is enough to enable the chord edge 28 to reach the vicinity of the discharge hole 18; when the equipment below the outlet 18, such as the valve plate 44, the conveyor, is to be overhauled, the travel of the carriages 22 can be adjusted by the system so that the two carriages 22 come into contact with each other at the outlet 18, thus closing the outlet 18. By adopting the structure, two functions of breaking the bridge and closing the discharge hole 18 can be realized only by stroke control, so that parts are greatly saved, and the manufacturing cost and the maintenance cost are reduced.

The carriage 22 is provided with a main beam 34 coaxial with the push rod 26, a sliding groove (not shown) is arranged on the bottom surface of the main beam 34 along the length direction of the main beam 34, and 2 guide blocks (not shown) protruding out of the slope bottom surface 16 and positioned in the sliding groove are arranged on the slope bottom surface 16. The guide block is arranged in the sliding groove, and the structure can ensure that the sliding frame 22 moves along the length direction of the push rod 26 and cannot deviate from the direction, so that other structures are impacted, and damage or jamming is caused; in addition, the design of the chute with the downward opening can avoid the situation that materials enter the chute to cause blockage.

A knife gate valve 40 is transversely arranged below the discharge port 18. The knife gate valve 40 comprises a cylindrical valve body 42 which is arranged below the discharge port 18 and is opened at two ends, a plate-shaped valve plate 44 which is horizontally arranged, and a second driving device 46; the second driving device 46 drives the valve plate 44 to move horizontally to close or open the opening of the silo.

Specifically, the method comprises the following steps: the valve body 42 is a square structure matching with the shape of the discharge port 18, and is composed of a front panel, a rear panel (not shown) and two side panels (not shown). The edge of the valve plate 44 slides on the two side plates, and a channel steel with an inward opening can be used as the two side plates, and the valve plate 44 slides in the channel steel. Other non-negative groove structures can be adopted to avoid the accumulation of materials in the groove to form blockage. For example, the two side edges of the valve plate 44 are provided with the sliding grooves from front to back, the side plates are provided with the guide rods, and the guide rods are arranged in the sliding grooves of the valve plate 44, so that the valve plate 44 can be guided to slide, and materials can be prevented from being accumulated to block the grooves in various forms, thereby causing jamming. The above-described structure is not shown in detail since it is not the innovation of the present invention and can be designed by those skilled in the art according to the above requirements. Of course, the two side plates of the valve body 42 may be realized by other members without any structure for vertically limiting the valve plate 44.

A plurality of longitudinal support strips 48 are horizontally arranged on the valve body 42, and a plurality of block-shaped guide pressing blocks 50 are horizontally arranged above the support strips 48 at intervals; the carrier strip 48 is arranged in the direction of movement of the valve plate 44. The valve plate 44 is disposed between the supporting strip 48 and the guiding pressing block 50, the guiding pressing block 50 provides a limit for the valve plate 44 to force the valve plate to cling to the supporting strip 48 during movement, and the front end of the valve plate 44 is provided with a slope 52 which inclines upwards from the front end to the rear end. This allows the valve plate 44 to scrape material off the carrier strip 48 as it moves, avoiding clogging. The guide pressing blocks 50 are arranged at intervals, so that the phenomenon that a gap is formed between the guide pressing block 50 and the supporting strip 48 to cause material overstock and hinder the movement of the valve plate 44 can be avoided.

The front panel of the valve body 42 near the front end of the valve plate 44 is provided with a plurality of static pressure blocks 54, and the static pressure blocks 54 are provided with inclined planes matched with the shape of the valve plate 44. The end of travel of the valve plate 44 is adjusted until it contacts the static pressure pad 54. At the end of this travel, and at this time the ramp surface of the static pressure block 54 is in surface contact with the ramp surface of the valve plate 44, thereby forcing the valve plate 44 down against the carrier strip 48 to form a good seal.

The valve body 42 near the rear end of the valve plate 44 is provided with a scraper 56 abutting against the valve plate 44, and the scraper 56 scrapes materials adhered to the valve plate 44 when the valve plate 44 moves backwards. Scraper 56 may be a square metal plate that is bolted vertically downward to valve body 42 with its lower edge contacting or slightly above valve plate 44 to scrape material off of valve plate 44 as it retracts.

Further, the guiding pressing block 50 is disposed on the inner walls of the two sides of the valve body 42 and abuts against the valve plate 44, and a guiding slope (not shown) is disposed on the side surface of the guiding pressing block 50 facing the rear end, so as to provide stable limiting for the valve plate 44 from the two sides, so that the guiding pressing block moves close to the supporting strip 48, and thus better sealing is achieved.

In the first embodiment of the present invention, the second driving device 46 adopts the following structure: a mounting bracket 48 is arranged on one side close to the rear end of the valve plate 44, a screw 51 is arranged in the mounting bracket 48, the screw 51 is connected with the valve plate 44, a driving sleeve (not shown) with internal threads is sleeved on the screw 51, and a motor or a handle 52 drives the driving sleeve to rotate, so that the screw 51 is driven by the threads of the driving sleeve to move back and forth.

A screw conveyor 54 is arranged below the knife gate valve 40, the screw conveyor 54 comprises a box body 53 with an upper part opened and communicated with the discharging port 18 and a lower part closed, a rotating shaft 58 is horizontally and rotatably arranged in the box body 53 through a bearing 57, a motor 64 drives the rotating shaft 58 to horizontally rotate, a material outlet 60 is arranged at the lower part of the box body 53, and two groups of helical blades 62 are symmetrically arranged on the rotating shaft 58 by taking the material outlet 60 as a center. The two groups of helical blades 62 rotate in opposite directions to push the materials to be discharged from the two sides to the material outlet 60, and the acting forces on the two sides are just against each other, so that the stress on other parts is effectively avoided, and the damage is caused. The motor 64 is controlled to rotate at a speed which enables the discharge of the material to be controlled slowly and accurately without causing leakage and material waste.

The above embodiments are merely embodiments of the present invention, which are described in detail and specific, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Automatic material feed bin of unloading, its base that includes frame construction, be provided with the storehouse body on the base, the storehouse body includes the slope bottom surface, slope bottom surface bottom is provided with pipy discharge gate, the discharge gate below transversely sets up a knife gate valve, its characterized in that: the knife gate valve comprises a cylindrical valve body, a horizontally arranged valve plate and a first driving device, wherein the valve plate is arranged below a discharge port of a storage bin, two ends of the valve plate are open, the valve plate comprises a front end and a rear end, the valve plate is horizontally moved to open or close the valve body, a supporting strip used for supporting the valve plate is arranged below the valve plate, a plurality of guide pressing blocks used for limiting are arranged above the valve plate, the guide pressing blocks are horizontally arranged on the inner wall of the valve body at intervals, a spiral conveyor is arranged below the knife gate valve and comprises an upper opening and is communicated with the discharge port and a box body with a closed lower part, a rotating shaft is horizontally and rotatably arranged in the box body, a motor drives the rotating shaft to horizontally rotate, a material outlet is arranged at the lower part of the box body, and two groups of spiral blades are symmetrically arranged on the rotating shaft by taking the material outlet as a center, the rotation directions of the two groups of helical blades are opposite.

2. The automatic discharge material bin of claim 1, wherein: the device comprises a discharging port, a slope bottom surface and at least one bridge breaking device arranged along the slope bottom surface, wherein the bridge breaking device comprises a sliding frame arranged along the slope bottom surface and right facing the discharging port, and a second driving device connected with a push rod and driving the sliding frame to reciprocate along the slope bottom surface.

3. The automatic discharge material bin of claim 2, wherein: the discharging port is a rectangular opening located in the center of the discharging port, the two slope bottom surfaces are symmetrically arranged by taking the center line of the discharging port as a symmetry axis, and the sliding frames of the two bridge breaking devices are respectively arranged on the slope bottom surfaces.

4. The automatic discharge material bin of claim 3, wherein: the bin body is of a cylindrical structure, the sliding frame is of an arched frame structure made of section steel, the sliding frame comprises a chord edge and an arc edge, the chord edge of the sliding frame faces the discharge hole, and a steel plate used for sealing the discharge hole is arranged at the rear part of the chord edge of the sliding frame.

5. The automatic discharge material bin of claim 4, wherein: the sliding frame is provided with a main beam coaxial with the push rod, the bottom surface of the main beam is provided with a sliding groove along the length direction of the main beam, and the bottom surface of the slope is provided with at least one guide block which protrudes out of the bottom surface of the slope and is positioned in the sliding groove.

6. The automatic discharge material bin of claim 5, wherein: the cross section of the section steel is in a right trapezoid shape, the right-angled waist of the section steel is located in the advancing direction of the sliding frame, and the oblique waist of the section steel is located in the retreating direction of the sliding frame.

7. The automatic discharge material bin of claim 1, wherein: the front end of the valve plate is provided with an inclined plane which is inclined upwards from the front end to the rear end, a static pressing block is arranged on the valve body close to the front end of the valve plate, the static pressing block is provided with an inclined plane matched with the shape of the valve plate, the static pressing block is arranged at the stroke end point of the valve plate, and the inclined plane of the static pressing block is in surface contact with the inclined plane of the valve plate.

8. The automatic discharge material bin of claim 1, wherein: and a scraper which is abutted against the valve plate is arranged on the valve body close to the rear end of the valve plate.

9. The automatic discharge material bin of claim 1, wherein: the guide pressing block is abutted against the valve plate, and a guide slope surface is arranged on the side face, facing the rear end, of the guide pressing block.