CN208377986U - Grab bucket discharging dust-arrest device - Google Patents

Abstract

The utility model discloses a kind of grab bucket discharging dust-arrest devices, including discharge funnel, spray equipment, sensor group, water tank group and a control cabinet；Spray equipment includes being evenly distributed the multiple nozzles being arranged in discharge funnel top inner wall and being evenly distributed the multiple nozzles being arranged in discharge funnel bottom interior wall；Sensor group is arranged below spray equipment comprising the multiple sensors being circumferentially disposed in discharge funnel top inner wall；Water tank group includes two water tanks for being symmetricly set on funnel two sides, and each water tank is connect with the nozzle for being located at adjacent side by water inlet pipe respectively, is equipped with water pump on each water inlet pipe；Control cabinet includes cabinet and the interior power supply for being provided with controller and being connect with controller by transmission line；Controller passes through transmission line respectively and is electrically connected with each water pump and each sensor；The apparatus structure is reasonable, easy to operate, solves the problems, such as that grab bucket is also easy to produce a large amount of fugitive dusts in discharge process, realizes the purpose of dustless discharging.

Description

Grab bucket unloading dust suppression device

Technical Field

The utility model relates to a material loading and unloading goods operation equipment technical field, in particular to grab bucket dust suppression device of unloading.

Background

At present, when bulk cargos such as ores and coals which are easy to generate dust are unloaded at a port and pier, the grab bucket is used for unloading the bulk cargos in a funnel in the unloading process, and the cargos fall freely when the grab bucket is unfolded to unload the bulk cargos in the funnel, so that the dust generated by the ores or the coals is scattered in a large amount, the dust at a funnel opening and a feed opening is diffused outwards, and the environment is polluted.

Therefore, it is necessary to design a dust suppression device capable of effectively avoiding the problem that a large amount of dust is generated in the unloading process of the grab bucket in view of the above defects

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a grab bucket dust suppression device of unloading that can effectively restrain the grab bucket and a large amount of raise dusts appear at the in-process of unloading.

Therefore, the utility model discloses technical scheme as follows:

a grab bucket unloading dust suppression device comprises an unloading hopper, a spraying device, a sensor group, a water tank group and a control box; wherein, the discharge hopper is arranged at the top of a support frame body; the spraying device comprises a plurality of nozzles which are uniformly distributed on the inner wall of the top of the discharging hopper along the circumferential direction and a plurality of nozzles which are uniformly distributed on the inner wall of the bottom of the discharging hopper along the circumferential direction; the sensor group is arranged below the spraying device and comprises a plurality of sensors which are arranged on the inner wall of the top of the discharging hopper along the circumferential direction; the water tank group comprises two water tanks symmetrically arranged on the support frame body; each water tank is respectively connected with the adjacent nozzle through a water inlet pipe, and a water pump is arranged on each water inlet pipe; the control box is arranged at the bottom side of the support frame body, and a controller and a power supply connected with the controller through a transmission line are arranged in the control box; the controller is electrically connected with each water pump and each sensor through transmission lines respectively.

Furthermore, the support frame body comprises four main support columns and two supports symmetrically arranged at two sides of the discharge hopper; wherein, the four main supporting columns are symmetrically distributed, and the top ends of the four main supporting columns are welded and fixed on the outer wall of the lower side of the discharging hopper; the support comprises a horizontal plate and two inclined rods, wherein one side of the horizontal plate is fixed on the side wall of the outer side of each main supporting column, the two horizontal plates are adjacent to the two main supporting columns, the two inclined rods are arranged in parallel, and the two ends of each inclined rod are respectively fixed on the bottom surface of each horizontal plate and the side wall of each main supporting column at the corresponding position.

Further, the two water tanks are respectively fixed on the top surfaces of the horizontal plates of the two brackets.

Furthermore, the number of the nozzles arranged on the inner wall of the top of the discharging hopper is eight; the number of the nozzles arranged on the inner wall of the bottom of the discharging hopper is four; the number of the sensors arranged on the inner wall of the top of the discharging hopper is four.

Furthermore, the top side wall of the discharge hopper shrinks inwards from bottom to top to form an upper conical opening, and an included angle formed between the side wall of the upper conical opening and the horizontal direction is 40-50 degrees.

Further, the bottom lateral wall of discharge hopper top-down outwards expands and forms down toper opening, and the contained angle that becomes between the lateral wall of lower toper opening and the horizontal direction is 40 ~ 50.

Furthermore, the water spraying direction of each nozzle is inclined downwards, and the included angle formed between the water spraying direction of each nozzle and the horizontal direction is 40-50 degrees.

Further, the sensor is an infrared sensor.

Furthermore, a transparent protective shell is sleeved outside the sensor. The transparent protective shell can be made of plastic or organic glass and is used for protecting the sensor against water and dust.

Compared with the prior art, the grab bucket unloading dust suppression device is reasonable in structure and simple in operation, effectively solves the problem that the grab bucket easily generates a large amount of raised dust in the unloading process, achieves the purpose of dust-free unloading, better protects the environment, and has good popularization and application prospects.

Drawings

FIG. 1 is a schematic structural view of a grab bucket unloading dust suppression device of the present invention;

fig. 2 is a schematic top view of the discharge dust suppression device of the grab bucket of the present invention;

fig. 3 is the working principle schematic diagram of the grab bucket unloading dust suppression device of the utility model.

Detailed Description

The present invention will be further described with reference to the following drawings and specific examples, but the following examples are by no means limiting the present invention.

As shown in fig. 1-2, the grab bucket unloading dust suppression device comprises an unloading hopper 1, a spraying device, a sensor group, a water tank group and a control box 6; wherein,

the discharge funnel 1 has a square opening, which is arranged on a support frame body, the side wall of the opening at the top part of the discharge funnel is inwards contracted to form a conical opening part, and specifically, the volume of the discharge funnel 1 is 68m³The side wall of the top end of the upper conical opening part is contracted from bottom to top to form an upper conical opening part, the side wall of the bottom end of the upper conical opening part is expanded from top to bottom to form a lower conical opening part, and an included angle formed between the side wall of the upper conical opening part and the horizontal direction is 40 degrees;

the support frame body comprises four main support columns 701 and two supports 702 symmetrically fixed on the outer sides of the four main support columns 701, the four main support columns 701 are symmetrically distributed, the top ends of the four main support columns 701 are welded and fixed on the outer wall of the lower side of the discharging hopper 1, and the space is kept to accommodate a loading truck 5 to be driven to the lower side of the hopper; specifically, the four main support columns 701 are two circular steel columns with the height of 6400mm and the outer diameter of 400mm, and the top ends of the two circular steel columns are symmetrically welded and fixed on the outer wall of the lower side of the discharge hopper 1, so that the bottom end of the discharge hopper 1 is 3700mm away from the ground; each bracket 702 fixed on the outer side wall of the main support column 701 comprises a horizontal plate with one side edge welded and fixed on the side wall of the main support column 701 and two inclined rods which are arranged in parallel and of which two ends are respectively welded and fixed on the bottom surface of the horizontal plate and the side wall of the main support column 701;

the spraying device comprises eight nozzles 3 which are uniformly distributed on the inner wall of the top of the discharging funnel 1 along the circumferential direction and four nozzles 3 which are uniformly distributed on the inner wall of the bottom of the discharging funnel 1 along the circumferential direction; the water spraying direction of each nozzle 3 is inclined downwards and forms an included angle of 50 degrees with the horizontal direction, and the water sprayed by the nozzles 3 is ensured to be just sprayed to the position of the opening position of the grab bucket; in addition, in order to prevent the materials from falling off and damaging the nozzles in the unloading process, a horizontally arranged square ring platform or an obliquely arranged square ring platform is further formed on the inner wall of the hopper above the installation positions of the top nozzle and the bottom nozzle in an inward extending mode along the radial direction; the square ring table plays a role in protection, so that the nozzle 3 is arranged on the inner wall of the funnel positioned below the square ring table, and the collision between materials and the nozzle is avoided;

the sensor group is arranged below the spraying device and comprises four sensors 2 which are arranged on the inner wall of the top end of the discharging hopper 1 along the peripheral direction of the hopper; specifically, the four sensors 2 are all infrared sensors, and the distance between each infrared sensor and the grab bucket 8 is generally 1500-2800 mm, so the infrared sensor which is correspondingly installed should select the infrared sensor in the effective distance measurement range, and whether infrared rays are radiated by the infrared emission tube of the infrared sensor and reflected by the grab bucket 8 to return to the infrared receiving tube to be received or not is judged to judge whether the grab bucket 8 enters the discharge hopper 1 or not; in addition, the four sensors 2 are just positioned below the eight nozzles 3 above, a transparent protective shell made of organic glass is sleeved outside each sensor 2, after the grab bucket 8 finishes unloading, the nozzles 3 continue to spray water to suppress dust, and spray and clean the protective shell of the sensor 2, so that no dust is attached to the shell, and the situation that the sensor 2 cannot effectively detect the grab bucket 8 when the next grab bucket 8 enters the unloading hopper 1 is avoided;

the water tank group comprises two water tanks 4 symmetrically arranged on the support frame body, and specifically, the two water tanks 4 are respectively fixed on the top surfaces of the two horizontal plates; each water tank is respectively connected with two adjacent nozzles 3 through water inlet pipes, and a water pump is arranged on each water inlet pipe and used for pumping spray water from the water tank 4 to the nozzles;

the control box 6 is arranged and fixed at the bottom side of the support frame body and comprises a box body, a controller and a power supply, wherein the controller and the power supply are arranged in the box body; specifically, the power supply and the controller are connected with the controller through a transmission line to supply power to the controller; the controller realizes power supply and signal transmission to water pump and sensor through transmission line and each water pump and each sensor respectively, detects promptly when the sensor has the grab bucket to get into the funnel after, sends the signal to the controller, and the controller is for the water pump power supply after receiving this signal, and nozzle 3 begins to spray the operation. Still be provided with control panel on the controller, can think the pumping pressure of setting for the water pump by operating personnel, realize can adjusting the spray flow of nozzle 3 according to the raise dust condition of unloading at any time.

As shown in fig. 3, the working principle of the grab bucket unloading and dust suppression device is as follows: when unloading is needed, the material loading truck 5 runs to the position below the unloading hopper 1, so that a truck hopper used for loading materials is just positioned right below the unloading hopper 1; the grab then grabs the material and enters the discharge hopper 1 to discharge into the hopper of the load wagon 5, in which process: the controller supplies power to the sensor 2, so that the sensor 2 is kept in an open state, when the grab bucket enters the discharging hopper 1, the sensor 2 arranged on the inner wall of the discharging hopper 1 judges that the grab bucket enters by utilizing the energy difference between the infrared ray radiated by the sensor 2 and the received infrared ray, and sends a sensing signal to the controller connected with the sensor 2, the controller receives the sensing signal and then controls a water pump connected with the controller to start working, so that the spray water sprayed from the nozzle 3 is sprayed to the position where the grab bucket is opened, and at the moment, the grab bucket can start to open for discharging; after the grab bucket is unloaded and is accomplished, the grab bucket shifts out discharge hopper 1, sensor 2 detects no grab bucket 8 among the discharge hopper 1, resend sensing signal to controller promptly, at this moment, the pump sending pressure of controller increase spray water, make from spout 3 in spun spray water can spray to lie in offside sensor 2 protective housing on adnexed raise dust and discharge hopper 1 in the floated raise dust continue to spray 30s after, close the water pump, unload once more until grab bucket 8, repeat above-mentioned working process.

The foregoing embodiments and description have been provided to illustrate the principles of the invention and, without departing from the spirit and scope of the invention, there are various changes and modifications that fall within the scope of the invention as claimed.

Claims (9)

1. A grab bucket unloading dust suppression device is characterized by comprising an unloading hopper (1), a spraying device, a sensor group, a water tank group and a control box (6); wherein, the discharge funnel (1) is arranged at the top of a support frame body; the spraying device comprises a plurality of nozzles (3) which are uniformly distributed on the inner wall of the top of the discharging hopper (1) along the circumferential direction and a plurality of nozzles (3) which are uniformly distributed on the inner wall of the bottom of the discharging hopper (1) along the circumferential direction; the sensor group is arranged below the spraying device and comprises a plurality of sensors (2) which are arranged on the inner wall of the top of the discharging hopper (1) along the circumferential direction; the water tank group comprises two water tanks (4) symmetrically arranged on the support frame body; each water tank is respectively connected with the adjacent nozzle (3) through a water inlet pipe, and a water pump is arranged on each water inlet pipe; the control box (6) is arranged at the bottom side of the support frame body, and a controller and a power supply connected with the controller through a transmission line are arranged in the control box; the controller is electrically connected with each water pump and each sensor through transmission lines respectively.

2. The grab bucket discharging dust suppression device according to claim 1, wherein the support frame body comprises four main support columns (701) and two supports (702) symmetrically arranged at two sides of the discharging hopper (1); wherein, the four main supporting columns (701) are symmetrically distributed, and the top ends of the four main supporting columns are welded and fixed on the outer wall of the lower side of the discharging hopper (1); the support (702) comprises a horizontal plate with one side fixed on the outer side wall of the adjacent two main supporting columns (701) and two inclined rods which are arranged in parallel and with two ends respectively fixed on the bottom surface of the horizontal plate and the side wall of the main supporting column (701) at the corresponding position.

3. The grab bucket discharging dust suppression device according to claim 2, wherein the two water tanks (4) are respectively fixed on the top surfaces of the horizontal plates of the two brackets (702).

4. The grab bucket unloading and dust suppressing device according to claim 1, wherein the number of the nozzles (3) arranged on the top inner wall of the unloading hopper (1) is eight; the number of the nozzles (3) arranged on the inner wall of the bottom of the discharging hopper (1) is four; the number of the sensors (2) arranged on the inner wall of the top of the discharging hopper (1) is four.

5. The grab bucket discharging dust suppression device according to claim 1, wherein the top side wall of the discharging hopper (1) shrinks inwards from bottom to top to form an upper conical opening part, and an included angle formed between the side wall of the upper conical opening part and the horizontal direction is 40-50 degrees.

6. The grab bucket discharging dust suppression device according to claim 1, wherein the bottom end side wall of the discharging hopper (1) is expanded outwards from top to bottom to form a lower conical opening part, and an included angle formed between the side wall of the lower conical opening part and the horizontal direction is 40-50 degrees.

7. The grab bucket discharging dust suppression device according to claim 1, wherein the water spraying direction of each nozzle (3) is inclined downwards, and the included angle between the water spraying direction and the horizontal direction is 40-50 degrees.

8. The grab bucket unloading and dust suppressing device according to claim 1, wherein the sensor (2) is an infrared sensor.

9. The grab bucket unloading dust suppression device according to claim 1, characterized in that a transparent protective shell is sleeved outside the sensor (2).