Intelligent atomization dust removal grab bucket

Abstract

The utility model belongs to the technical field of bridge type grab cranes, and particularly relates to an intelligent atomization dust removal grab bucket which is characterized in that a liquid level sensor is arranged in a water tank, a first linear displacement sensor is arranged on a cart track of a bridge type grab crane, and a second linear displacement sensor is arranged on a track of a trolley of the bridge type grab crane. The water pipe is coiled on the water pipe storage device, and a supply water pipe is arranged at a certain position along the track; and the PLC drives the cart to move to the water supply pipe, tap water is supplemented into the water tank until the liquid level of the water tank reaches the highest set value, and the grab bucket moves above the working area under the control of the PLC. Compared with the prior art, the limestone dust removal device has the advantages that grabbing, transferring, throwing and dust removal of limestone can be achieved at the same time, and the dust removal effect is good; and dust generated in the working process of the grab bucket can be subjected to spraying dust removal, ore is always surrounded by water mist in the transferring process, and the dust content of air in a raw material warehouse is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge type grab crane technical field especially relates to an intelligent atomization dust removal grab. BACKGROUND

[0002] In the process of lime production, qualified particle size limestone is stored in a closed raw material warehouse, and the grab equipment arranged in the raw material warehouse is responsible for grabbing limestone from the yard and transporting it to the receiving hopper. The limestone in the raw material warehouse generally carries a certain amount of dust, which will produce a large amount of dust during the grabbing, transporting and dropping process, seriously affecting the working environment and the health of workers. Therefore, the dust in this process needs to be controlled.

[0003] At present, the dust removal measures adopted by the raw material warehouse are generally to set atomization spray dust removal equipment around the workshop, which can absorb dust through the sprayed fine water droplets. When the dust absorbed by the water droplets reaches a certain amount, it will fall. The position of this kind of atomization spray equipment is relatively fixed, and it is difficult to cover the entire raw material warehouse in the working range. Moreover, in daily production, the grabbing process is also one of the main sources of dust, and the atomization nozzle arranged around the raw material warehouse cannot remove dust from this source.

[0004] The Chinese utility model patent with application number 201520328196.7 discloses a coal grab automatic dust removal device, which comprises a dust falling assembly, a battery and a controller. The battery and the controller are fixedly installed on the coal grab. The number of dust falling assemblies is the same as the number of supporting arms of the coal grab. Each dust falling assembly is fixedly installed on a supporting arm. The dust falling assembly comprises a water tank, a high-pressure water pump and an atomization nozzle. The water tank is in the shape of a ring and is fixedly installed on the upper fixing plate of the coal grab. An inlet and two outlets are arranged on the water tank. A high-pressure water pump is installed below each outlet. The high-pressure water pump is connected to the controller. The battery supplies power to the high-pressure water pump and the controller. This device overcomes the problem of easy wear of water pipes and wires in the prior art.

[0005] The Chinese utility model patent with application number 202321460141.2 discloses an electrically fused brick scrap grab, which comprises a horizontally arranged supporting rod, and four pull rods are fixedly connected to the outside of the supporting rod. The electrically fused brick scrap grab also comprises two scoops, which are rotatably connected to the two pull rods on the same side through connecting pieces. The electrically fused brick scrap grab further comprises a water storage tank, which is connected to a plurality of atomization nozzles at the bottom and a transmission member for spraying the atomization nozzles. During the collection process, the transmission member drives the sealing plate to move, so that the water in the water storage tank is sprayed out through the atomization nozzles, and the dust generated during the collection of electrically fused brick scrap is removed, thereby increasing the safety protection for workers.

[0006] In the prior art, the spray head arranged on the grab bucket can suppress dust during the operation of the grab bucket, but how to quickly position and supplement the water tank is crucial to the working efficiency of the grab bucket, but the prior art does not mention it. Practical new type content

[0007] The utility model aims at providing an intelligent atomization dust removal grab bucket, overcoming the defects of the prior art, realizing the simultaneous grabbing, transporting, feeding and dust removal of limestone, having good dust removal effect, small one-time investment, forming interlocking control of the grab bucket and the atomization dust removal device, realizing automatic continuous operation of the whole production process, simple and compact device structure, independent production or upgrading and reconstruction based on the existing grab bucket, the atomization dust removal device being attached to the grab bucket body and not being limited by the space.

[0008] To achieve the above object, the utility model realizes the following technical scheme:

[0009] An intelligent atomization dust removal grab bucket is a grab bucket matched with a bridge-type grab crane, and an atomization spraying device is matched with the grab bucket, wherein the atomization spraying device comprises a water tank, a water pipe, a pressure pump, a water distributor and atomization spray heads, the atomization spray heads are arranged on the grab bucket, the water tank is connected in communication with the atomization spray heads through the water pipe, the pressure pump and the water distributor, the water tank is arranged on a trolley of the bridge-type grab crane, the water tank is connected with a water supply pipe, a winch is arranged on the trolley, the winch is connected with the grab bucket through a steel wire rope, characterized in that a liquid level sensor is arranged in the water tank, a linear displacement sensor one is arranged on a trolley rail of the bridge-type grab crane, a linear displacement sensor two is arranged on a rail of the trolley of the bridge-type grab crane, the water pipe is wound on a water pipe storage device, and a water supply pipe is arranged at a certain position along the rail; when the water level in the water tank is lowered to a set value, a PLC controller drives a trolley of the bridge-type grab crane to move to the water supply pipe, the trolley moves, the water supply pipe on the trolley is connected with the water supply pipe, a water supply valve is opened, tap water is supplied to the water tank, until the liquid level in the water tank reaches the highest set value, the grab bucket moves above the working area under the control of the PLC controller.

[0010] The water pipe storage device comprises a winding drum, an overrunning clutch and a storage servo motor, an output shaft of the storage servo motor is connected with one end of the overrunning clutch, the other end of the overrunning clutch is connected with the winding drum, one end of the water pipe is wound on the winding drum, the other end of the water pipe is connected with the water distributor on the grab bucket, the water pipe is provided with the pressure pump, the water pipe is lengthened when the grab bucket is lowered, and the storage servo motor is started when the grab bucket is raised, so that the water pipe is wound up, and the too long water pipe does not affect the work of the grab bucket.

[0011] The atomization spray heads are twelve in total, are evenly arranged on a tray around the grab bucket steel wire rope, and are fan-shaped nozzles or hollow conical nozzles.

[0012] The end of the water supply pipe is provided with a trumpet-shaped water filling port, and a rubber sealing ring is arranged in the water filling port.

[0013] A compression spring is arranged between the water filling port and the supporting seat, and the water filling port is connected with the water source pipeline through a hose.

[0014] The position of the grab bucket is displayed in real time on the display terminal of the PLC controller, and the target coordinates of the grab bucket movement can be preset.

[0015] A speed sensor is arranged on the reel, and an electromagnetic brake is arranged between the reel and the shaft.

[0016] An intelligent atomization dust removal grab bucket is characterized in that a bridge-type grab bucket trolley carries a grab bucket to move in a working area under the control of a PLC controller to complete the grabbing and transfer of ores, and a water tank is automatically replenished.

[0017] 1) The grab bucket is positioned, the trolley drives the grab bucket to move above the working area, the grab bucket is lowered, and the water pipe storage device in the trolley releases the water pipe, during which the water pipe is kept in a relaxed state to facilitate water supply.

[0018] 2) Spray dust removal, before the grab bucket closes to grab limestone, the pressurized pump starts to work to pump water in the water tank into the water distributor through the water pipe, the water distributor divides the water to the twelve atomization spray heads around, and sprays water mist around the center of the grab bucket to adsorb dust, and the spray range completely covers the working area of the grab bucket.

[0019] 3) Grabbing and transfer, the grab bucket transfers limestone to an ore receiving hopper, the hydraulic rod releases the ore into the receiving hopper, during which the pressurized pump and the atomization spray head continuously work, the grab bucket stays above the receiving hopper for a period of time after the limestone is unloaded to remove dust generated when the ore is released, when the grab bucket is retracted and reset, the water pipe storage device winds up the water pipe, and the pressurized pump and the atomization spray head stop working.

[0020] 4) Automatic water replenishment, when the water level in the water tank decreases to the lower limit, the control room receives a water level warning signal from the liquid level meter, the grab bucket automatically replenishes water at the water supply pipe after completing the current work, when the bridge-type grab bucket trolley moves to the position of the water supply pipe, the trolley moves towards the water supply pipe until the water supply pipe is inserted into the water filling port of the water supply pipe to start water filling.

[0021] 5) Grab bucket reset, when the water level in the water tank reaches the upper limit, the liquid level signal is transmitted to the PLC controller, the water replenishment is completed, the trolley leaves the water supply pipe, and the grab bucket returns to the working area for continuous work.

[0022] The grab bucket stays for 5-10 seconds after the limestone is unloaded in the step 3).

[0023] The water replenishing instruction in the step 4) can also be given by an operator.

[0024] Compared with the prior art, the utility model has the beneficial effects that:

[0025] 1) The limestone can be grabbed, transported, put and dedusted simultaneously, the dust generated in the working process of the grab bucket can be dedusted by spraying, the ore is always surrounded by water mist in the transportation process, and the dust content of the air in the raw material warehouse is further reduced.

[0026] 2) The utility model has high degree of mechanization and automation, simple control, low investment cost, and can realize automatic continuous operation in the whole production process.

[0027] 3) The utility model has simple and compact structure, can be produced independently or upgraded on the basis of the existing grab bucket, the atomization dedusting device is attached to the grab bucket body, is not limited by the space, can be produced and used integrally, and can be upgraded on the basis of the old mechanical grab bucket.

[0028] 4) The utility model discloses a water pipe storage device, which can change the position of the grab bucket at will, and the water pipe does not occupy external space.

[0029] 5) The utility model discloses a fixed water filling port arranged in the raw material warehouse, which avoids using a complex water pipe and saves space.

[0030] 6) The utility model has simple and compact structure, large processing capacity, small occupied space and simple operation. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of the application state of the embodiment of the utility model;

[0032] Figure 2 It is a schematic diagram of the grab bucket structure in the embodiment of the utility model;

[0033] Figure 3 It is a schematic diagram of the water pipe storage device structure in the embodiment of the utility model;

[0034] Figure 4 It is a schematic diagram of the water filling port structure in the embodiment of the utility model;

[0035] Figure 5 It is a PLC control structure block diagram in the embodiment of the utility model;

[0036] In the figure: 1-steel wire rope, 2-tray, 3-water distributor, 4-hydraulic rod, 5-grab bucket, 6-water pipe, 7-atomizing nozzle, 8-rail, 9-water filling port, 10-rubber sealing ring, 11-compression spring, 12-sheave, 13-overrunning clutch, 14-accommodating servo motor, 15-shaft, 16-electromagnetic brake, 17-supporting seat, 101-water tank, 102-water supply pipe, 103-water supply pipe, 104-trolley, 105-gantry, 106-water pipe accommodating device, 107-pressurizing pump, 108-liquid level sensor, 110-winch. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be described clearly and completely in combination with specific embodiments. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments.

[0038] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art, the specific embodiments needed in the description of the specific embodiments or prior art will be briefly introduced. Obviously, the specific embodiments described below are some of the embodiments of the present application, and other specific embodiments can be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0039] The components of the embodiments of the present application described and shown in the specific embodiments herein can be arranged and designed in countless different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the specific embodiments is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0040] See Figures 1-5 It is a structure schematic diagram of an embodiment of the intelligent atomizing dust removal grab bucket of the present application, which is a grab bucket matched with a bridge-type grab bucket crane. The trolley 104 and the gantry 105 are both provided with wheels on both sides. The gantry 105 is provided with rails on both sides of the cross beam for the trolley 104 to use. The upper part of the raw material warehouse is provided with rails for the gantry 105 to use. The grab bucket 5 is matched with an atomizing spraying device. The atomizing spraying device includes a water tank 101, a water pipe 6, a pressurizing pump 107, a water distributor 3 and an atomizing nozzle 7. The atomizing nozzle 7 is arranged on the grab bucket 5. The water tank 101 is connected in communication with the atomizing nozzle 7 through the water pipe 6, the pressurizing pump 107 and the water distributor 3. The grab bucket 5 completes the grabbing action under the action of the hydraulic rod 4. There are twelve atomizing nozzles 7, which are evenly arranged on the tray 2 around the steel wire rope 1. The atomizing nozzle 7 is a fan-shaped nozzle or an empty circular cone nozzle. When the grab bucket 5 grabs the material, the atomizing nozzle 7 sprays water to achieve the purpose of dust removal and avoid the influence of dust on the environment.

[0041] The water tank 101 is arranged on the trolley 104 of the bridge type grab bucket crane, the water tank 101 is externally connected with the water supply pipe 102, the winch 110 is arranged on the trolley 104, the winch 110 is connected with the grab bucket 5 through the steel wire rope 1, the water tank 101 is internally provided with the liquid level sensor 108, the linear displacement sensor one (not shown in the figure) is arranged on the rail of the bridge type grab bucket crane trolley 104, the linear displacement sensor two (not shown in the figure) is arranged on the rail of the bridge type grab bucket crane trolley 104, the position of the grab bucket 5 is displayed on the display terminal of the PLC controller in real time, and the target coordinates of the grab bucket 5 movement can be pre-set.

[0042] The water pipe 6 is wound on the water pipe storage device 106, the replenishing water pipe 103 is arranged at a position along the rail 8, when the water level in the water tank 101 is lowered to a set value, the PLC controller drives the bridge type grab bucket crane trolley 104 to move to the position of the replenishing water pipe 103, the trolley 104 continues to move, the water supply pipe 102 on the trolley 104 is butted with the replenishing water pipe 103, the replenishing valve is opened, and tap water is replenished into the water tank 101 until the water level in the water tank 101 reaches the highest set value, so that the automatic water replenishing function is realized, and the grab bucket 5 moves above the working area under the control of the PLC controller.

[0043] The end of the replenishing water pipe 103 is connected with the horn-shaped water filling opening 9, the water filling opening 9 is internally provided with the rubber sealing ring 10, the structure of the water filling opening 9 is matched with the end structure of the water supply pipe 102, and the replenishing water pipe 103 is provided with the replenishing valve (an electric control valve or a gas control valve). The compression spring 11 is arranged between the water filling opening 9 and the supporting seat 17, and the replenishing water pipe 103 is connected with the water source pipe through the hose.

[0044] The water pipe storage device 106 comprises the winding drum 12, the overrunning clutch 13 and the storage servo motor 14, one end of the output shaft of the storage servo motor 14 is connected with the overrunning clutch 13, the other end of the overrunning clutch 13 is connected with the winding drum 12, one end of the water pipe 6 is wound on the winding drum 12, and the other end of the water pipe 6 is connected with the water distributor 3 on the grab bucket 5, the water pipe 6 is provided with the pressurizing pump 107, the grab bucket 5 is lowered to lengthen the water pipe 6, the storage servo motor 14 is started when the grab bucket 5 is lifted to wind up the water pipe 6, so that the water pipe 6 is prevented from being too long to affect the work of the grab bucket 5. In order to prevent the water pipe 6 from stalling and being excessively pulled out when the water pipe 6 is pulled out, the speed sensor is arranged on the winding drum 12, and the electromagnetic brake 16 is arranged between the winding drum 12 and the shaft 15, so that the winding drum 12 is braked by the electromagnetic brake 16 under the control of the PLC controller when the releasing speed of the water pipe 6 exceeds the limit value. A tension sensor can also be arranged between the water pipe 6 and the water distributor 3 to prevent the water pipe 6 from being damaged by excessive tension and improve the safety.

[0045] The intelligent atomization dust removal grab bucket 5 is moved in the working area under the control of the PLC controller by means of the bridge type grab bucket crane trolley 104 carrying the grab bucket 5, ore is grabbed and transported, and the water tank 101 is automatically replenished, and the specific steps comprise the following steps.

[0046] 1) grab bucket 5 in place, the trolley 104 driven grab bucket 5 moves to the work area above, grab bucket 5 is lowered, while the water pipe storage device 106 in the trolley 104 releases the water pipe 6, the water pipe 6 remains relaxed during the process, facilitating water supply;

[0047] 2) spray dust removal, before the grab bucket 5 closes the limestone, the pressurized pump 107 starts to work, the water in the water tank 101 is pumped into the water distributor 3 through the water pipe 6, the water distributor 3 divides the water to the twelve atomizing nozzles 7 around, and the water mist is sprayed from the center of the grab bucket 5 to the surrounding, and the spray range completely covers the working area of the grab bucket 5;

[0048] 3) grabbing and transporting, the grab bucket 5 transports the limestone to the ore receiving hopper, the PLC controller controls the hydraulic rod control valve to control the action of the hydraulic rod, and the ore is released into the receiving hopper, during which the pressurized pump 107 and the atomizing nozzle 7 continue to work, and after the limestone is unloaded, the grab bucket 5 stays above the receiving hopper for 5-10 seconds to remove the dust generated when the ore is released, when the grab bucket 5 is retracted and reset, the water pipe storage device 106 winds up the water pipe 6, and the pressurized pump 107 and the atomizing nozzle 7 stop working;

[0049] 4) automatic water replenishment, when the water level in the water tank 101 decreases to the lower limit of the water level, the control room receives the water level warning signal of the liquid level sensor, the grab bucket 5 automatically goes to the water replenishment pipe 103 to automatically replenish water after completing the current work; when the bridge-type grab bucket crane trolley 105 moves to the position of the water replenishment pipe 103, the trolley 104 moves towards the water replenishment pipe 103 until the water supply pipe 102 is inserted into the water filling port 9 of the water replenishment pipe 103, and the water filling starts; the water replenishment instruction can also be issued by the operator.

[0050] 5) grab bucket 5 reset, when the water level in the water tank 101 reaches the upper limit, the liquid level signal is transmitted to the PLC controller, the water replenishment is completed, the trolley 104 leaves the water replenishment pipe 103, and the grab bucket 5 returns to the working area to continue working.

[0051] The above steps 1)-5) are continuously circulated, which provides guarantee for the continuous operation of the atomizing dust removal grab bucket.

[0052] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A smart atomization dust removal grab bucket, which is a matching grab bucket of a bridge grab crane, and is provided with an atomization spraying device on the grab bucket, the atomization spraying device comprising a water tank, a water pipe, a pressure pump, a water distributor and an atomization nozzle, the atomization nozzle being arranged on the grab bucket, the water tank being connected in communication with the atomization nozzle through the water pipe, the pressure pump and the water distributor, the water tank being arranged on a trolley of the bridge grab crane, the water tank being connected with a water supply pipe, a winch being arranged on the trolley, and the winch being connected with the grab bucket through a steel wire rope, characterized in that, The water tank is provided with a liquid level sensor, the bridge type grab crane's trolley track is provided with a linear displacement sensor one, the bridge type grab crane's trolley track is provided with a linear displacement sensor two, the water pipe is wound on the water pipe storage device, and the track is provided with a water supply pipe at somewhere along the track; when the water level in the water tank is lowered to a set value, the PLC controller drives the bridge type grab crane trolley to the water supply pipe, the trolley moves, the water supply pipe on the trolley is butt-jointed with the water supply pipe, the supply valve is opened, tap water is supplied to the water tank until the water level in the water tank reaches the highest set value, and the grab moves above the working area under the control of the PLC controller.

2. The intelligent atomizing dust removal grab according to claim 1, characterized in that, The water pipe storage device comprises a reel, an overrunning clutch and a storage servo motor, one end of the output shaft of the storage servo motor is connected with the overrunning clutch, the other end of the overrunning clutch is connected with the reel, one end of the water pipe is wound on the winding reel, the other end of the water pipe is connected with the water distributor on the grab, the water pipe is provided with a pressure pump, the grab is lowered to lengthen the water pipe, and when the grab is raised, the storage servo motor is started to wind up the water pipe, so that the water pipe is prevented from being too long to affect the work of the grab.

3. The intelligent atomizing dust removal grab according to claim 1, characterized in that, The atomizing nozzles are twelve in total, are evenly arranged on the tray around the grab steel wire rope, and are fan-shaped nozzles or hollow conical nozzles.

4. The intelligent atomizing dust removal grab according to claim 1, characterized in that, The end of the water supply pipe is provided with a horn-shaped water filling port, the water filling port is provided with a rubber sealing ring, the structure of the water filling port is matched with the structure of the end of the water supply pipe, and the water supply pipe is provided with an electric control valve or a gas control valve.

5. The intelligent atomizing dust removal grab according to claim 4, characterized in that, A compression spring is arranged between the water filling port and the supporting seat, and the water filling port is connected with a water source pipeline through a hose.

6. The intelligent atomizing dust removal grab according to claim 1, characterized in that, The position of the grab is displayed on the display terminal of the PLC controller in real time, and the target coordinates of the grab movement can be preset.

7. The intelligent atomizing dust removal grab according to claim 2, characterized in that, A speed sensor is arranged on the reel, and an electromagnetic brake is arranged between the reel and the shaft; when the release speed of the water pipe exceeds a limit value, the electromagnetic brake is controlled to act by the PLC controller to brake the reel.

Images