CN114811604A - Control method for detecting and breaking bridge of garbage feed hopper - Google Patents

Abstract

The invention relates to a control method for detecting and breaking a bridge of a garbage feed hopper, which comprises the following steps: s1: a broken frame returning switch and a broken frame entering switch which are respectively and electrically connected with the controller are arranged on the broken frame device; s2: a locking device for locking the bridge breaking device is fixed on the upper end face of the rear wall, and a locking in-position switch and a locking out-position switch which are respectively electrically connected with the controller are arranged on the locking device; s3: a fixed high level indicator is arranged in the feed hopper close to the lower end of the feed hopper and is connected with a controller; s4: a sealing and isolating device is arranged at the joint of the feed hopper and the chute, an opening switch and a closing switch are respectively arranged at an isolating door of the sealing and isolating device, and the opening switch and the closing switch are respectively and electrically connected with a controller; s5: and a low material level meter is arranged in the middle position in the chute and is electrically connected with the controller.

Description

Control method for detecting and breaking bridge of garbage feed hopper

Technical Field

The invention belongs to the technical field of household garbage incineration, and relates to a control method for detecting and breaking a bridge of a garbage feed hopper.

Background

The feeding system of the garbage incineration process is mainly used for receiving and storing garbage, and the stored garbage is continuously and safely conveyed to a fire grate to be incinerated through a reciprocating mechanism. The detailed structure comprises a feed hopper, a chute and a feeder (a feed trolley and a feed platform).

The feeding hopper adopts a trapezoidal funnel type structure, receives garbage grabbed by a grab bucket of a garbage crane, and ensures that the garbage can continuously slide into a chute of the feeding channel under the action of self weight through a specific inclination angle of a front wall of the hopper. The bottom of the feed hopper is connected with the chute, the chute is a straight pipe structure with a rectangular cross section, the size of the rectangular cross section of the chute is gradually increased from the top to the bottom to form a shape with a small top and a big bottom, and the garbage slides into the chute from the feed hopper to be stored to form a material column. The feeder is arranged below the chute and surrounded by a chute lower structure and comprises a feeding trolley and a feeding platform, the garbage stored in the chute is piled up from the feeding platform, and the feeding trolley reciprocates on the feeding platform to push the garbage on the feeding platform into the incinerator.

The feeding hopper, the chute and the feeding platform are connected to form a feeding channel, and the minimum position in the whole feeding channel is the connecting position of the bottom of the feeding hopper and the chute. On the one hand, rubbish slides in from the feeder hopper, reaches the feeding platform through the chute, and rubbish only relies on the dead weight effect, except the feeding dolly reciprocating motion of bottom, whole process does not have other external force drives. On the other hand, except for the fermentation step, the garbage is not pretreated, and the connection position between the bottom of the garbage feeding hopper and the chute is bridged due to the conditions of overlarge garbage size, dense garbage accumulation and the like.

Therefore, a more intelligent and safer control method for detecting and breaking the bridge of the garbage feeding hopper is needed.

Disclosure of Invention

In view of the above, the present invention provides a novel method for controlling bridge detection and breaking of a garbage feeding hopper.

In order to achieve the purpose, the invention provides the following technical scheme:

a control method for detecting and breaking a bridge of a garbage feed hopper comprises the following steps:

s1: the feeding hopper is connected with the chute, a feeding trolley is arranged below the chute, a broken bridge device is arranged on the rear wall of the feeding hopper, a broken frame returning position switch and a broken frame entering position switch which are respectively and electrically connected with the controller are arranged on the broken bridge device, the broken frame returning position switch is used as the initial position of the broken bridge device, and the broken frame hydraulic cylinder is also electrically connected with the controller;

s2: the upper end face of the rear wall is fixedly provided with a locking device for locking the bridge-breaking device, the locking device is provided with a locking in-position switch and a locking out-position switch which are respectively electrically connected with the controller, the locking device comprises a locking hydraulic cylinder, and the locking hydraulic cylinder is electrically connected with the controller;

s3: a fixed high level indicator is arranged in the feed hopper close to the lower end of the feed hopper, the high level indicator is connected with the controller, and the high level indicator transmits a detection signal to the controller to detect feeding;

s4: the sealing and isolating device comprises an isolating door, a sealing hydraulic cylinder drives the isolating door to open and close, and the sealing hydraulic cylinder is also electrically connected with the controller;

s5: a low material level meter is arranged in the middle of the inner part of the chute and electrically connected with the controller, and the low material level meter transmits a detection signal to the controller.

Furthermore, the opening switch of the isolating door has a signal, the low level indicator detects the signal, no bridge is formed, the locking enters the position switch and has a signal, and the breaking frame retreats to the position switch and has a signal.

Furthermore, the opening switch of the isolating door has a signal, the low level indicator detects no signal, the high level indicator detects a signal, a bridge is built, the locking device operates to lock the switch to move back to the position, the signal of the switch to move back to the position disappears, the bridge breaking device starts to move back until the switch to move back to the position has a signal, the signal of the switch to move back to the bridge breaking device appears, the bridge breaking device starts to move forward again, and the process is repeated until the low level indicator detects a signal.

Furthermore, after the low level indicator detects a signal, the bridge breaking device returns, the bridge breaking frame retreating position switch has a signal, and the locking device moves forward until a locking position switch signal appears.

Furthermore, the opening switch of the isolating door has a signal, the low level indicator detects no signal, and the high level indicator detects no signal, so that the feeding hopper needs to feed materials.

Furthermore, a closing switch of the sealing isolation device has a signal, a locking in-place switch has a signal, and a broken bridge in-place switch has a signal.

The invention has the beneficial effects that:

the method has high automation degree, can automatically detect the garbage bridging, and can quickly and automatically react to solve the bridging problem after the garbage bridging phenomenon occurs. Complete functions, safety, reliability and high production efficiency.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of a waste incineration feeding system;

FIG. 2 is a schematic view of the feed hopper;

FIG. 3 is a front view of the bridge breaker mounted within the feed hopper;

FIG. 4 is a top view of the bridge breaker mounted within the feed hopper;

FIG. 5 is a schematic structural diagram of a bridging device and a locking device of the feed hopper;

FIG. 6 is a front view of the locking device;

FIG. 7 is a top view of the locking device;

FIG. 8 is a front view of the receptacle;

FIG. 9 is a top view of the socket;

FIG. 10 is a schematic view of the chute and the sealing and isolating device within the chute;

FIG. 11 is a cross-sectional view of the junction of the isolation door and the swing arm;

FIG. 12 is an enlarged view of the seal isolator;

FIG. 13 is an enlarged partial view at the rocker arm;

FIG. 14 is a partial enlarged view of the bottom connecting structure of the sealing cylinder;

FIG. 15 is a front view of the chute and seal isolation apparatus;

fig. 16 is a control system diagram of the present system.

Reference numerals:

100. a feed hopper; 110. a front wall; 120. a rear wall; 121. a guide strip; 122. a limiting plate; 123. a high level gauge; 200. a chute; 210. sealing the door space; 220. a low level indicator; 230. opening a switch; 240. closing the switch; 300. a feeder; 400. a bridge breaking device; 410. a frame body; 411. a hammer head; 412. a first guide groove; 413. a first cover plate; 414. a guide wheel; 415. a second cover plate; 416. locking; 417. the broken frame moves back to the position switch; 418. the broken frame enters a position switch; 420. a frame breaking hydraulic cylinder; 421. a first hydraulic cylinder support; 422. breaking a bridge and hydraulically driving a reversing valve; 500. a locking device; 510. a second support; 520. locking a hydraulic cylinder; 530. a lock head; 531. an induction sheet; 540. a socket; 541. a jack; 550. a switch mounting bracket; 551. mounting holes; 560. locking the in-position switch; 570. locking the return switch; 580. locking a hydraulic drive reversing valve; 600. sealing the isolation device; 610. an isolation gate; 620. a swing shaft; 630. a rocker arm; 640. sealing the hydraulic cylinder; 650. a sealed hydraulically driven reversing valve; 700. a protection plate; 800. and a controller.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 16, a feeding system for waste incineration sequentially comprises a feeding hopper 100, a chute 200 and a feeder 300 from top to bottom, wherein the feeding hopper 100 is of an inverted bell mouth structure and has a large top and a small bottom, the chute 200 is a rectangular tube, and the upper end of the chute 200 is fixedly connected with the bottom of the feeding hopper 100 through a flange. The chute 200 is divided into an upper section and a lower section, and the chute 200 is fixedly connected with each other through an expansion joint. The feeder 300 comprises a feeding platform and a feeding trolley above the feeding platform, the feeding trolley is positioned at the outlet of the chute 200, the feeding trolley reciprocates on the feeding platform, and the garbage falling from the chute 200 is continuously and safely conveyed to a fire grate for incineration. The feed car is controlled by the controller 800.

The feeding hopper 100 includes a front wall 110 and a rear wall 120, the front wall 110 being a slant surface, and the rear wall 120 being a vertical surface. The inner side wall of the rear wall 120 is provided with a bridging device 400, and the bridging device 400 can break the bridge between the feed hopper 100 and the chute 200.

The frame breaking and bridging device 400 comprises a vertically arranged frame body 410, the frame body 410 is of a rectangular frame structure, the lower end of the frame body 410 is provided with a hammer head 411 integrated with the frame body, and in order to guarantee the frame breaking effect, the hammer head 411 is of a triangular structure with the tip end facing downwards. The frame body 410 is connected with the telescopic end of the frame breaking hydraulic cylinder 420, and the frame breaking hydraulic cylinder 420 drives the frame body 410 to realize up-and-down reciprocating motion, so that a bridge breaking effect is realized. The frame breaking hydraulic cylinder 420 is vertically arranged, the telescopic end of the frame breaking hydraulic cylinder 420 faces downwards, the upper end of the frame breaking hydraulic cylinder 420 is fixed to the first hydraulic cylinder support 421, the first hydraulic cylinder support 421 is fixed to the upper end face of the rear wall 120, and the end of the first hydraulic cylinder support 421 extends out of the outer side of the rear wall 120 and then is hinged to the frame breaking hydraulic cylinder 420. The frame breaking hydraulic cylinder 420 extends into the frame body 410 and then the telescopic end thereof is fixedly connected with the lower end of the interior of the frame body 410. The frame breaking hydraulic cylinder 420 is connected with the controller 800.

The preferred breaking hydraulic cylinders 420 are provided in a pair, and the breaking hydraulic cylinders 420 are symmetrically provided with respect to the center line of the frame body 410.

In order to prevent the frame body 410 from swinging left and right, the side wall of the frame body 410 opposite to the rear wall 120 is provided with a first vertically extending guide groove 412, the corresponding rear wall 120 is fixed with a guide strip 121 matched with the first guide groove 412, the guide strip 121 is also vertically arranged, preferably, the first guide groove 412 is provided with a pair and is symmetrically arranged relative to the central line of the frame body 410, and the same guide strip 121 is also provided with a pair.

The outer side of the frame body 410 provided with the broken frame hydraulic cylinder 420 is provided with a detachable cover plate I413, and the cover plate I413 can be opened for operation when the broken frame hydraulic cylinder 420 is installed or overhauled.

In order to prevent the upper end of the frame body 410 from being inclined, a limiting plate 122 is fixed to the rear wall 120 on the left and right sides of the frame body 410, the limiting plate 122 is disposed parallel to the rear wall 120, the corresponding end of the frame body 410 is located between the limiting plate 122 and the rear wall 120, and a second guide groove of the frame body 410 is formed between the rear wall 120 and the limiting plate 122. In order to reduce the friction force of the vertical movement of the frame body 410, a pair of guide wheels 414 located on the same horizontal line are respectively fixed on the upper portions of the left and right side walls of the frame body 410, and the two guide wheels 414 are respectively in contact with the rear wall 120 and the limiting plate 122 to realize rolling friction. In order to facilitate the installation and maintenance of the guide wheel 414, a second cover plate 415 is arranged on the outer side wall of the frame body 410 at a position corresponding to the guide wheel 414, the second cover plate 415 can be detached, and the installation and maintenance of the guide wheel 414 are realized at the second cover plate 415.

When the bridge is released or no bridge is formed, the bridge breaking device 400 needs to be pulled to the highest point by the bridge breaking hydraulic cylinder 420, so that feeding of the feeding hopper 100 is not affected, at this time, a vertical downward acting force always exists on the bridge breaking device 400 under the action of gravity, and the bridge breaking hydraulic cylinder 420 correspondingly has an upward pulling force to keep the bridge breaking device balanced and not fall. However, it is difficult to maintain the pressure and maintain the tension of the frame-breaking hydraulic cylinder 420 for a long time, and the frame-breaking device 400 falls down due to gravity because the upward tension is reduced due to natural pressure relief inside the frame-breaking hydraulic cylinder 420. Therefore, to solve the problem that the feeding hopper 100 is affected by the natural falling of the bridging device 400 when the bridging device 400 is not in operation, a locking device 500 needs to be designed to fix the bridging device 400 at the highest position of the feeding hopper 100.

The locking device 500 is provided on the upper end surface of the rear wall 120 at the center line position of the frame body 410. The locking device 500 comprises a second support base 510, a locking hydraulic cylinder 520 horizontally placed is arranged on the second support base 510, and the locking hydraulic cylinder 520 is electrically connected with the controller 800. The telescopic end of the locking hydraulic cylinder 520 faces the bridge breaking device 400 and is perpendicular to the frame body 410 of the bridge breaking device 400, and the telescopic end of the locking hydraulic cylinder 520 is fixedly connected with a long-strip-shaped lock head 530. One end of the lock head 530 is hinged with the telescopic end of the locking hydraulic cylinder 520 through a pin shaft. A socket 540 is fixed on the second support 510 close to the bridging device 400, a jack 541 which is matched with the lock 530 and penetrates through the socket 540 is arranged in the middle of the socket 540, and the lock 530 can penetrate through the jack 541 and reciprocate in the jack 541.

A lock catch 416 matched with the lock head 530 is fixed in the middle of the upper end surface of the frame body 410 of the corresponding bridge-breaking device 400. The cross-section of the lock catch 416 is an inverted L-shaped structure that opens toward the lock head 530. The locking head 530 can be inserted into the lock catch 416. To facilitate insertion of the locking head 530 into the catch 416, the upper edge of the free end of the locking head 530 is chamfered.

A switch mounting rack 550 is fixed on a second support 510 at the side of the socket 540, mounting holes 551 distributed front and back are formed in the switch mounting rack 550, the mounting holes 551 are horizontal long round mounting holes, the two mounting holes 551 are on the same horizontal line, a locking in-position switch 560 and a locking out-position switch 570 are respectively fixed in the mounting holes 551, the locking in-position switch 560 and the locking out-position switch 570 are respectively position sensors, a sensing piece 531 matched with the locking in-position switch 560 and the locking out-position switch 570 is fixed on the lock head 530, when the sensing piece 531 reaches the locking in-position switch 560, the locking hydraulic cylinder 520 stops extending, and when the sensing piece 531 reaches the locking out-position switch 570, the locking hydraulic cylinder 520 stops retracting. The lock-in bit switch 560 and the lock-out bit switch 570 are electrically connected to the controller 800, respectively.

The locking in-position switch 560 can limit the insertion of the lock cylinder 530 into the lock catch 416 to meet the locking requirement. The locking in-place switch 570 requires the locking head 530 to completely withdraw from the locking buckle 416 without causing interference to the operation of the bridge-breaking device 400.

An arc-shaped protection plate 700 is fixed above the locking device 500 and the first hydraulic cylinder support 421, and the protection plate 700 is used for preventing impurities such as garbage and dust from entering the locking device 500 and the first hydraulic cylinder support 421.

The sealing and isolating device 600 is arranged at the joint of the feed hopper 100 and the chute 200, and the sealing and isolating device 600 is used for realizing the isolation of the inside and the outside of the incinerator when the household garbage incinerator is started and stopped and does not receive garbage.

The seal isolation device 600 includes a rotatable isolation door 610, the isolation door 610 is located within the chute 200 at the junction of the feed hopper 100 and the chute 200, and the isolation door 610 may completely cover the junction of the feed hopper 100 and the chute 200. The rear end of the isolating door 610 is fixed on the swinging shaft 620, two ends of the swinging shaft 620 penetrate out of the chute 200 respectively and then are fixedly connected with one end of the swinging arm 630, the other end of the swinging arm 630 is hinged with the telescopic end of the sealing hydraulic cylinder 640, the base of the sealing hydraulic cylinder 640 is fixed on the side wall of the chute 200 through the fixing seat, and the base of the sealing hydraulic cylinder 640 is hinged with the fixing seat. The extension and contraction of the sealing hydraulic cylinder 640 drives the rocker arm 630 to rotate, and the swinging angle just accords with the opening angle of the sealing door. The sealing cylinder 640 is connected to the controller 800.

The junction of the swing shaft 620 and the chute 200 is sealed by shaft end seal plates and seal strips.

The inside rear side of chute 200 is provided with sealing door space 210 that is used for holding the sealing door, and when the sealing door was opened completely, the sealing door guaranteed falling smoothly of rubbish in a vertical plane with the rear side wall of chute 200.

If the chute 200 is long, a plurality of isolation doors 610 can be arranged to be connected in the middle, and sealing strips are fixed at the joints of the isolation doors 610 and the isolation doors 610 for sealing. The connection between the isolation door 610 and the swing shaft 620 of the isolation door 610 is fixedly connected by a fixed connection.

The sealing isolation door 610 is provided with an isolation door limiting device, and the corresponding positions on the side wall of the chute 200 are respectively provided with a sealing in-position switch and a sealing out-position switch. The sensing blocks matched with the seal in-position switch and the seal out-position switch are arranged on the rocker arm 630 and rotate along with the extension and contraction of the seal hydraulic cylinder 640 together with the rocker arm 630. When the rocker arm 630 and the sensing block rotate to the position of the seal in-place switch or the seal back-to-place switch, the switch outputs a carry signal or a back-to-place signal to the controller 800, the controller 800 stops supplying oil, and the seal hydraulic cylinder 640 stops acting, so that the isolation door 610 keeps an open state or a closed state.

In order to realize the automatic control of the system, a fixed high level indicator 123 is arranged at a position close to the lower end of the feeding hopper 100, the high level indicator 123 is connected with the controller 800, the high level indicator 123 detects feeding, and when the garbage storage position reaches the position, a high level material signal is output to remind that external incoming materials can be stopped to enter the feeding hopper 100. Otherwise, when the stored garbage falls to be lower than the high material level, a high material level material-free signal is output, and the high material level material-free is displayed.

Meanwhile, a low level indicator 220 is arranged at the middle position inside the chute 200 connected with the feed hopper 100, the low level indicator 220 is connected with the controller 800, when the garbage storage position falls below the position, a low level material-free signal is output, and the alarm is given out to supplement fuel as soon as possible. Otherwise, when the stored garbage is higher than the low material level, a low material level material signal is output, and the low material level material is displayed.

The frame breaking and bridging device 400 is provided with a frame breaking and returning position switch 417 which is fixed at the upper end of the rear wall 120 of the feed hopper 100 and is connected with the controller 800, the frame breaking and bridging device 400 is mainly detected to return to the position by the frame breaking and bridging device 417 serving as an initial position of the frame breaking and bridging device 400, a signal is output to the controller 800 after the frame breaking and bridging device 400 returns to the position, and the controller 800 controls the frame breaking hydraulic cylinder 420 to stop oil supply. The frame breaking hydraulic cylinder 420 is also connected with a bridge breaking hydraulic drive reversing valve 422, and the bridge breaking hydraulic drive reversing valve 422 is connected with the controller 800.

The rack-breaking and bridging device 400 is provided with a rack-breaking and bridging-in switch 418, which is fixed in the middle of the rear wall 120 of the feed hopper 100 and mainly detects whether the rack-breaking and bridging device 400 is in place, and the rack-breaking and bridging-in switch 418 is electrically connected with the controller 800. After the frame-breaking bridge-erecting device 400 is in place, the frame-breaking frame-entering position switch 418 outputs a signal to the controller 800, and the controller 800 controls the frame-breaking hydraulic cylinder 420 to stop advancing oil supply.

The locking hydraulic cylinder 520 is connected to a locking hydraulically actuated directional control valve 580, and the locking hydraulically actuated directional control valve 580 is electrically connected to the controller 800. The locking hydraulic drive reversing valve 580, as the controller 800, receives that the locking device 500 is moved to the right position or moved back to the right position to stop the locking hydraulic cylinder 520 from supplying oil, the direction of the supplied oil is changed, the oil is supplied in the forward direction originally, and the oil is supplied in the backward direction after the direction is changed, or vice versa.

The isolation door 610 of the sealing isolation device 600 is provided with an opening switch 230 and a closing switch 240, and the opening switch 230 and the closing switch 240 are electrically connected to the controller 800. The sealed hydraulic cylinder 640 is also connected to a sealed hydraulically actuated directional valve 650, and the sealed hydraulically actuated directional valve 650 is electrically connected to the controller 800.

The opening switch 230 is used as an initial position of the isolation door 610, mainly detects that the isolation door 610 completely opens the connection channel between the feed hopper 100 and the chute 200, and outputs a signal (an opening signal of the isolation door 610) to the controller 800 to stop the oil supply of the sealing hydraulic cylinder 640.

The switch 240 is closed, the isolation door 610 is mainly detected to completely close the connection passage between the feed hopper 100 and the chute 200, and a signal (the isolation door 610 closing signal) is output to the controller 800 to stop the oil supply of the sealing hydraulic cylinder 640.

The sealing hydraulic drive reversing valve 650, as a hydraulic system, receives that the isolation door 610 is completely opened or closed, and after stopping oil supply, the direction of oil supply is changed, which is originally forward oil supply, and is backward oil supply after changing the direction, or vice versa.

The working principle of the invention is as follows:

whether the feed hopper 100 and the chute 200 are bridged or not is judged, and two conditions exist.

Firstly, the isolation door 610 is opened, and when the low level indicator 220 detects a material signal, the feed hopper 100 is not bridged; when the low level indicator 220 detects no material and the high level indicator 123 detects material, the bridge is judged to be a bridge, which is called a bridge signal; when the low level indicator 220 detects no material and the high level indicator 123 detects no material, alarming for feeding is needed.

Secondly, the isolation door 610 is closed, and when the low level indicator 220 detects no material and the high level indicator 123 detects material, the bridge cannot be determined.

Can be simply described as: the isolation gate 610 opens a signal + the low level indicator 220 has no material signal + the high level indicator 123 has a material signal, i.e., a bridging signal. The low level indicator 220 has a material signal and the bridging signal is removed.

A control method for starting a broken bridge.

First, if a bridging signal occurs, and at this time, there are a signal indicating that the bridging device 400 has retreated to the position and a signal indicating that the locking device 500 has advanced to the position, the locking device 500 needs to be first activated to unlock until the signal indicating that the locking device 500 has retreated to the position occurs.

Can be simply described as: the bridging signal + the bridge breaking device 400 retreats to the bit signal + the locking device 500 enters the bit signal, and the locking device 500 is started to unlock.

Secondly, when a signal indicating that the locking device 500 is in the position and a signal indicating that the sealing door is opened exists, the bridging device 400 starts to move downwards and insert garbage at the position of the extrusion bridging position until the signal indicating that the bridging device 400 is in the position, the device starts to retreat, the device 400 retreats to the position and starts to advance again, and the process is repeated until the bridging signal is eliminated.

Can be simply described as: the bridging signal, the locking device 500 retreating to the position signal and the sealing door opening signal, and the bridging breaking device 400 starts the bridge breaking until the bridging signal is removed.

Thirdly, after the bridging signal is released and the bridging breaking device 400 is withdrawn to the right position, the locking device 500 advances until the locking device 500 reaches the right position, and the surface bridging breaking device 400 is locked.

Can be simply described as: the non-bridging signal + the bridging device 400 retreats to the position signal, and the locking device 500 advances to lock the bridging device 400.

The seal separator 600 is closed requiring receipt of a lock 500 in-place signal.

In addition to automatic detection, a manually activated bridge-breaking device 400 may be provided in the event that the seal-isolating device 600 is opened.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (6)

1. A control method for detecting and breaking a bridge of a garbage feed hopper is characterized by comprising the following steps:

s1: the feed hopper (100) is connected with the chute (200), a feeding trolley is arranged below the chute (200), a bridge breaking device (400) is arranged on a rear wall (120) of the feed hopper (100), a frame breaking return-to-position switch (417) and a frame breaking advance-to-position switch (418) which are respectively electrically connected with the controller (800) are arranged on the bridge breaking device (400), the return-to-position switch is used as an initial position of the bridge breaking device (400), and the frame breaking hydraulic cylinder (420) is also electrically connected with the controller (800);

s2: a locking device (500) used for locking the bridge breaking device (400) is fixed on the upper end face of the rear wall (120), a locking in-place switch (560) and a locking out-of-place switch (570) which are respectively electrically connected with the controller (800) are arranged on the locking device (500), the locking device (500) comprises a locking hydraulic cylinder (520), and the locking hydraulic cylinder (520) is electrically connected with the controller;

s3: a fixed high level indicator (123) is arranged in the feed hopper (100) and close to the lower end of the feed hopper, the high level indicator (123) is connected with the controller (800), and the high level indicator (123) transmits a detection signal to the controller (800) to detect feeding;

s4: a sealing isolation device (600) is arranged at the joint of the feed hopper (100) and the chute (200), an opening switch (230) and a closing switch (240) are respectively arranged at an isolation door (610) of the sealing isolation device (600), the opening switch (230) and the closing switch (240) are respectively electrically connected with the controller (800), the sealing isolation device (600) comprises an isolation door (610), a sealing hydraulic cylinder (640) drives the isolation door (610) to open and close, and the sealing hydraulic cylinder (640) is also electrically connected with the controller (800);

s5: a low level indicator (220) is arranged in the middle position inside the chute (200), the low level indicator (220) is electrically connected with the controller (800), and the low level indicator (220) transmits a detection signal to the controller (800).

2. The method of claim 1, wherein the method comprises the steps of: the opening switch (230) of the isolating door (610) has a signal, the low level gauge (220) detects the signal, no bridge is formed, the locking in position switch (560) has a signal, and the breaking frame returning to the position switch (417) has a signal.

3. The method of claim 1, wherein the method comprises the steps of detecting and breaking a bridge of a garbage feeding hopper; the opening switch (230) of the isolating door (610) has a signal, the low level gauge (220) detects no signal, the high level gauge (123) detects a signal, a bridge is built, the locking device (500) operates to lock the switch (570) which moves back to the position, the signal of the switch (417) which moves back to the position disappears until the signal of the switch (418) which moves the bridge is built, the bridge-breaking device (400) starts to move back, the signal of the switch which moves back to the bridge appears, the bridge-breaking device (400) starts to move forward again, and the process is repeated until the low level gauge (220) detects a signal.

4. The method of claim 3, wherein the method comprises the steps of: after the low level gauge (220) detects a signal, the bridge breaking device (400) returns, the bridge breaking frame retreating position switch (417) has a signal, and the locking device (500) advances until a locking advancing position switch (560) signal appears.

5. The method of claim 1, wherein the method comprises the steps of: the opening switch (230) of the isolating door (610) has a signal, the low level gauge (220) detects no signal, and the high level gauge (123) detects no signal, so that the feeding hopper (100) needs to be charged.

6. The method of claim 1, wherein the method comprises the steps of: the closing switch (240) of the sealing isolation device (600) has a signal, the locking in-place switch (560) has a signal, and the broken bridge retreats from the in-place switch has a signal.

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