Totally-closed dust removal device for aggregate line crushing discharge port

Abstract

The utility model discloses a totally-closed dust removal device for an aggregate line crushing discharge port, which is characterized in that the lower end of a discharge hopper is embedded in a discharge shed floor, a first dry fog spray pipe of a door frame of a passing door seals the passing door through dry fog sprayed by the first dry fog spray pipe, and a first dust suction pipe and a second dry fog spray pipe sequentially surround the upper part of the discharge hopper from bottom to top; the second dry fog spray pipe settles dust above the discharge hopper to the first dust suction pipe or the ground through dry fog sprayed by the second dry fog spray pipe, the second dry fog spray pipe is also suitable for mixing dry fog into falling aggregate, the space between the first dry fog spray pipe and the second dry fog spray pipe is a residual fog expansion space, and the first dust suction pipe sucks dust floating above the discharge hopper and on the periphery of the discharge hopper. A third dry fog spray pipe at the upper end of the discharge hopper seals an input port of the discharge hopper through dry fog sprayed by the third dry fog spray pipe, and the falling aggregate flow is wrapped. Compared with the prior art, closed discharging is adopted, so that dust overflowing is effectively avoided, and passing of the discharging trolley is not affected; and the discharging shed is fully closed and is optimally arranged at multiple points, so that the dust removal effect reaches the optimal level, and dust emission is avoided.

Description

Technical Field

[0001] The utility model relates to cement aggregate crushing, in particular to a fully enclosed dust removal device for an aggregate line crushing discharge port. Background Art

[0002] Cement aggregate processing should, on the premise of meeting the technical requirements of concrete aggregate, have as little impact on the environment as possible.

[0003] Among them, the dust at the aggregate crushing discharge port urgently needs to be effectively solved; when the unloading truck pours aggregate into the unloading hopper, the aggregate rolls down and spreads a large amount of dust, which greatly threatens on-site personnel and affects the environment. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems mentioned above and provides a fully enclosed dust removal device for the crushing and unloading port of an aggregate line, which can unload cement aggregate in a closed manner, thereby avoiding dust overflow and not affecting the passage of unloading vehicles.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A fully enclosed dust removal device for an aggregate line crushing discharge port comprises a discharge shed, a discharge hopper, a first dry mist nozzle, a first dust suction pipe, a second dry mist nozzle and a third dry mist nozzle. The discharge shed is provided with a passage door suitable for the entry and exit of personnel and vehicles. The lower end of the discharge hopper is embedded in the floor of the discharge shed. The first dry mist nozzle extends along the door frame of the passage door. The first dry mist nozzle is suitable for closing the passage door with the dry mist sprayed therefrom. The first dust suction pipe extends along the peripheral wall of the lower end of the discharge shed to surround the discharge hopper and is higher than the discharge hopper. The first dust suction pipe is connected to the exhaust fan through a dust filter. The first dust suction pipe is suitable for sucking the discharge hopper. The dust floating in the air above and around the unloading shed, the second dry mist nozzle extends along the peripheral wall of the upper end of the unloading hopper to surround the unloading hopper, the second dry mist nozzle is suitable for spraying dry mist therefrom to settle the dust above the unloading hopper to the first dust suction pipe or the ground, the second dry mist nozzle is also suitable for adding dry mist to the fallen aggregate, the space between the first dry mist nozzle and the second dry mist nozzle is the residual mist expansion space, so that the dust in the unloading shed is settled to the ground, the third dry mist nozzle extends along the peripheral wall of the upper end of the unloading hopper, the third dry mist nozzle is suitable for spraying dry mist therefrom to close the input port of the unloading hopper and surround the fallen aggregate flow.

[0007] Compared with the existing technology, the beneficial effects of the present application include: dry fog type closed unloading shed access door, closed unloading, effectively preventing dust from overflowing without affecting the passage of the unloading truck; when the unloading truck dumps aggregates, the vehicle enclosure and roof are immediately dry fog dust suppression and vacuum dust removal, and even the unloading shed during unloading has less dust; the unloading hopper input port is sealed by dry fog, and the aggregate poured into the unloading hopper and its crusher is less likely to emerge through the unloading hopper; the unloading shed is fully enclosed and multi-point optimized to achieve the optimal dust removal effect and avoid dust emissions.

[0008] As an improvement of the above technical solution, the inner wall of the discharge hopper is arranged with ridges at intervals along the circumferential direction, or the discharge hopper is provided with an auxiliary bucket, and the ridges or the auxiliary bucket serve as an eaves of the third dry mist nozzle, so that a dry mist overflow layer suitable for dry mist overflow is formed in the discharge hopper and the aggregate flow is prevented from squeezing against the inner wall of the discharge hopper.

[0009] As an improvement of the above technical solution, the inner wall of the discharge hopper is provided with a second dust suction pipe extending along its circumference, and the second dust suction pipe is located below the third dry mist nozzle.

[0010] As an improvement of the above technical solution, the dust exhaust pipe connected to the first dust suction pipe is provided with a vertical pipe and a dust filter bag. The channel of the vertical pipe is provided with a partition plate. The partition plate array has multiple air holes. The dust filter bag is suitable for standing upright, and the bag opening is connected to the air holes one by one.

[0011] As an improvement of the above technical solution, the bag opening of the dust filter bag is connected with a steel ring, the steel ring is suitable for hanging on the partition plate, and the dust exhaust pipe is provided with a window suitable for taking and placing the dust filter bag.

[0012] As an improvement to the above technical solution, the steel ring is provided with a radial reinforcement beam, and the reinforcement beam also serves as a handle for lifting the dust filter bag.

[0013] As an improvement to the above technical solution, the vertical pipe and its partition plate are made of metal, and the vertical pipe is connected to an electrostatic ground wire.

[0014] As an improvement to the above technical solution, the discharge hopper has a double-wall structure, and a plurality of reinforcing plates are connected between the inner wall and the outer wall of the discharge hopper.

[0015] As an improvement of the above technical solution, a ground marking extends from outside the passage door to the unloading hopper, and the ground marking is suitable for the unloading vehicle to reverse from outside the unloading shed to the unloading hopper according to its guidance. One or more cameras are provided in the unloading shed, and the cameras are suitable for imaging the scene in the unloading shed. A screen suitable for being viewed by the reversing driver is provided outside the unloading shed, and the screen is suitable for playing the image of the camera.

[0016] As an improvement of the above technical solution, the passage door is provided with a proximity switch suitable for detecting people and vehicles passing through. The proximity switch is electrically connected to an alarm, and the alarm sounds based on the proximity switch detecting that there are people and vehicles passing through the passage door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following is a further detailed description of the specific embodiments of the present invention with reference to the accompanying drawings, wherein:

[0018] Figure 1 This is a schematic structural diagram of a fully enclosed dust removal device for a crushing and discharging port of an aggregate line according to an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 A partial cross-sectional view showing the fully enclosed dust removal device at the crushing discharge port of the aggregate line;

[0020] Figure 3 for Figure 1 A cross-sectional view showing the dust exhaust pipe of the fully enclosed dust removal device at the crushing discharge port of the aggregate line;

[0021] Figure 4 for Figure 3 A schematic diagram of the structure of the dust filter bag in the dust exhaust pipe is shown.

[0022] The accompanying drawings are only one specific embodiment of the present invention, and the form and structure of this specific embodiment should not limit the scope of other embodiments.

[0023] Unloading shed 100, access door 110, ground marking 120;

[0024] Discharge hopper 200, auxiliary hopper 210, reinforcement plate 220;

[0025] a first dry mist nozzle 300;

[0026] A first dust suction pipe 410 and a second dry mist nozzle 420;

[0027] a third dry mist nozzle 510 and a second dust suction pipe 520;

[0028] Dust exhaust pipe 600, vertical pipe 610, partition plate 611;

[0029] Dust filter bag 700 , steel ring 710 , and reinforcement beam 711 . DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 、 Figure 2 The utility model provides a fully enclosed dust removal device for the crushing and discharging port of an aggregate line, comprising a discharging shed 100, a discharging hopper 200, a first dry mist nozzle 300, a first dust suction pipe 410, a second dry mist nozzle 420 and a third dry mist nozzle 510. The discharging shed 100 is provided with a passage door 110 suitable for the entry and exit of personnel and vehicles. The lower end of the discharging hopper 200 is embedded in the floor of the discharging shed 100. The first dry mist nozzle 300 extends along the door frame of the passage door 110. The first dry mist nozzle 300 is suitable for closing the passage door 110 through the dry mist sprayed therefrom. The first dust suction pipe 410 extends along the peripheral wall of the lower end of the discharging shed 100 to surround the discharging hopper 200 and is higher than the discharging hopper 200. The first dust suction pipe 410 is connected to the exhaust fan through a dust filter. The dust pipe 410 is suitable for sucking the dust floating above and around the unloading hopper 200. The second dry mist nozzle 420 extends along the peripheral wall of the upper end of the unloading shed 100 to surround the unloading hopper 200. The second dry mist nozzle 420 is suitable for using the dry mist sprayed therefrom to settle the dust above the unloading hopper 200 to the first dust suction pipe 410 or the ground. The second dry mist nozzle 420 is also suitable for adding dry mist to the fallen aggregate. The space between the first dry mist nozzle 300 and the second dry mist nozzle 420 is the residual mist expansion space, which causes the dust in the unloading shed 100 to settle to the ground. The third dry mist nozzle 510 extends along the peripheral wall of the upper end of the unloading hopper 200. The third dry mist nozzle 510 is suitable for using the dry mist sprayed therefrom to close the input port of the unloading hopper 200 and surround the fallen aggregate flow.

[0032] It is understood that the first dry mist nozzle 300, the second dry mist nozzle 420, and the third dry mist nozzle 510 are connected to a dry mist generating device. Dry mist dust removal, also known as dry mist dust suppression, is primarily used for spray dust suppression at various sites, such as cement plants, thermal power plants, paper mills, docks, and coal mines, including material pushers and unloaders, truck loading and unloading chutes, dumpers, and transfer points in crushing and concentrating production lines. High-frequency sound waves create a sonic boom that atomizes water mist in a resonance chamber, producing fine dry mist particles smaller than 10 μm. After being ejected, the dry mist particles collide with dust particles without droplets, adhere to them, and aggregate and grow. They then settle under their own gravity, achieving the desired dust suppression effect.

[0033] The first dust suction pipe 410 is connected to an exhaust fan through a dust filter such as a filter cartridge and a filter bag.

[0034] Reference Figure 1 、 Figure 2 The operation process of the present invention is as follows: before the unloading shed 100 enters the vehicle, the first dry mist nozzle 300 of the passage door 110 sprays dry mist to close the passage door 110. Figure 1 、 Figure 2 , the mist flow direction V of the first dry mist nozzle 300 in1 ;

[0035] The unloading truck reverses through the passage door 110 toward the unloading hopper 200, and the passage door 110 is continuously closed by the dry mist. The dust shaken off by the unloading truck and the ground dust raised by the unloading truck are settled by the first dry mist.

[0036] When the unloading truck dumps aggregate, the dust raised by the unloading truck bucket and its aggregate flow is surrounded and settled by the second dry mist, and / or is extracted and filtered through the first dust suction pipe 410. Figure 1 、 Figure 2 、 Figure 3 , the mist flow direction V of the second dry mist nozzle 420 in2 , the dust removal direction V of the first dust suction pipe 410 out1 ;

[0037] The input port of the discharge hopper 200 is sealed by the third dry mist, and the dust in the discharge hopper 200 is suppressed by the third dry mist. Figure 2 , the mist flow direction V of the third dry mist nozzle 510 in3 The discharge hopper 200 is suitable for feeding aggregate to a crusher, such as a jaw crusher, a hammer crusher, etc.

[0038] Compared with the prior art, the beneficial effects of the present application include: the dry mist type closed unloading shed 100 has a passage door 110, and closed unloading, which effectively prevents dust from overflowing without affecting the passage of the unloading truck; when the unloading truck dumps aggregates, the vehicle enclosure and roof are immediately subjected to dry mist dust suppression and vacuum dust removal, and even the unloading shed 100 during unloading has less dust; the input port of the unloading hopper 200 is sealed by dry mist, and the aggregate poured into the unloading hopper 200 and its crusher is less likely to emerge through the unloading hopper 200; the unloading shed 100 is fully enclosed and multi-point optimized, so that the dust removal effect reaches the optimal level and dust emissions are avoided.

[0039] Reference Figure 2In some embodiments of the present invention, the inner wall of the discharge hopper 200 is arranged with ridges at intervals along the circumferential direction, or the discharge hopper 200 is provided with an auxiliary bucket 210, and the ridges or the auxiliary bucket 210 serve as an eaves for the third dry mist nozzle 510, that is, the third dry mist nozzle 510 is arranged below the ridges or the auxiliary bucket 210, and the third dry mist nozzle 510 is shielded by the ridges or the auxiliary bucket 210, so that a dry mist overflow layer suitable for dry mist overflow is formed in the discharge hopper 200 and prevents the aggregate flow from squeezing against the inner wall of the discharge hopper 200. The outer periphery of the aggregate flow in the discharge hopper 200 is tightly wrapped with dry mist, and the third dry mist nozzle 510 is protected by the ridges or the auxiliary bucket 210 and is not easily damaged by aggregate.

[0040] Reference Figure 2 In some embodiments of the present invention, the inner wall of the discharge hopper 200 is provided with a second dust suction pipe 520 extending along its circumference. The second dust suction pipe 520 is located below the third dry mist nozzle 510. The dust drifting in the discharge hopper 200 is sealed by the third dry mist and is further collected in advance to avoid excessive dust overflow in later processes such as crushing.

[0041] Reference Figure 1 、 Figure 3 In some embodiments of the present invention, the dust exhaust pipe 600 connected to the first dust suction pipe 410 is provided with a vertical pipe 610 and a dust filter bag 700. The vertical pipe 610 is provided with a partition plate 611. The partition plate 611 is provided with a plurality of ventilation holes. The dust filter bag 700 is adapted to stand upright, with the bag opening correspondingly connected to the ventilation holes. During dust extraction, the dust filter bag 700 is always inflated, providing a large dust filtering and ventilation area, and the overall dust removal air path has a large dust filtering area. In the vertical pipe 610, the airflow direction is in the direction of dust settling. The inner bottom of the dust filter bag 700 is suitable for collecting and settling dust, and also for dust sliding off the walls of the dust filter bag 700, so that the walls of the dust filter bag 700 maintain a good dust filtering and ventilation effect.

[0042] Preferably, the vertical pipe 610 and its partition plate 611 are made of metal, and the vertical pipe 610 is connected to an electrostatic ground wire.

[0043] Reference Figure 3 、 Figure 4 In some embodiments of the present invention, the bag opening of the dust filter bag 700 is connected to a steel ring 710, which is suitable for hanging on the partition plate 611. The dust exhaust pipe 600 is provided with a window suitable for taking and placing the dust filter bag 700, and the window is provided with a window panel suitable for opening and closing.

[0044] Reference Figure 3 、 Figure 4 In some embodiments of the present invention, the steel ring 710 is provided with a radial reinforcement beam 711 , and the reinforcement beam 711 also serves as a handle for carrying the dust filter bag 700 .

[0045] Reference Figure 2 In some embodiments of the present invention, the discharge hopper 200 has a double-wall structure, and a plurality of reinforcing plates 220 are connected between the inner wall and the outer wall of the discharge hopper 200, so that the discharge hopper 200 is not easily deformed due to the impact of aggregate.

[0046] Reference Figure 1 、 Figure 2 In some embodiments of the present invention, ground markings 120 extend from outside the access door 110 to the discharge hopper 200. Ground markings 120 guide the unloading vehicle from outside the unloading shed 100 to the discharge hopper 200. One or more cameras are installed inside the unloading shed 100, capable of capturing images of the scene inside the shed 100. A screen is installed outside the unloading shed 100, capable of being viewed by the driver reversing the vehicle, and capable of displaying the camera images. The screen is a widescreen, and the camera is a high-definition camera, enabling the driver to view clear images within a range of tens of meters.

[0047] In some embodiments of the present invention, the access door 110 is provided with a proximity switch suitable for detecting the passage of people and vehicles. The proximity switch is electrically connected to an alarm. The alarm sounds based on the proximity switch detecting that there are people and vehicles passing through the access door 110 (i.e., there are people and vehicles at the access door 110).

[0048] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit the present invention. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be included in the scope of the technical solution of the present invention.

Claims

1. A fully enclosed dust removal device for the crushing and discharging port of an aggregate line, characterized in that: include: The unloading shed is equipped with a passage door suitable for the entry and exit of personnel and vehicles; a discharge hopper, the lower end of which is embedded in the floor of the discharge shed; a first dry mist nozzle extending along the door frame of the passage door, wherein the first dry mist nozzle is adapted to close the passage door by spraying dry mist therefrom; a first dust suction pipe extending along the peripheral wall of the lower end of the unloading shed to surround the unloading hopper and be higher than the unloading hopper, the first dust suction pipe being suitable for sucking dust floating above and around the unloading hopper; A second dry mist nozzle extends along the peripheral wall of the upper end of the unloading shed to surround the unloading hopper. The second dry mist nozzle is suitable for depositing dust above the unloading hopper into the first dust suction pipe or the ground through the dry mist sprayed therefrom. The second dry mist nozzle is also suitable for adding dry mist to the fallen aggregate. The space between the first dry mist nozzle and the second dry mist nozzle is a residual mist expansion space. The third dry mist nozzle extends along the peripheral wall of the upper end of the discharge hopper. The dry mist sprayed from the third dry mist nozzle is suitable for closing the input port of the discharge hopper and surrounding the falling aggregate flow.

2. The fully enclosed dust removal device for the crushing and discharging port of the aggregate line according to claim 1 is characterized in that: The inner wall of the discharge hopper is arranged with ridges at intervals along the circumference, or the discharge hopper is provided with an auxiliary bucket, and the ridges or the auxiliary bucket serve as an eaves for the third dry mist nozzle, so that a dry mist overflow layer is formed in the discharge hopper that is suitable for dry mist to overflow and prevents the aggregate flow from squeezing against the inner wall of the discharge hopper.

3. The fully enclosed dust removal device for the crushing and discharging port of the aggregate line according to claim 2 is characterized in that: The inner wall of the discharge hopper is provided with a second dust suction pipe extending along its circumference, and the second dust suction pipe is located below the third dry mist nozzle.

4. The fully enclosed dust removal device for the crushing and discharging port of an aggregate line according to any one of claims 1 to 3, characterized in that: The dust exhaust pipe connected to the first dust suction pipe is provided with a vertical pipe and a dust filter bag. The channel of the vertical pipe is provided with a partition plate. The partition plate array has multiple ventilation holes. The dust filter bag is suitable for standing upright, and the bag opening is connected to the ventilation holes one by one.

5. The fully enclosed dust removal device for the crushing and discharging port of the aggregate line according to claim 4 is characterized in that: The bag opening of the dust collecting filter bag is connected with a steel ring, and the steel ring is suitable for hanging on the partition plate. The dust exhaust pipe is provided with a window suitable for taking and placing the dust collecting filter bag.

6. The fully enclosed dust removal device for the crushing and discharging port of the aggregate line according to claim 5 is characterized in that: The steel ring is provided with a radial reinforcement beam, and the reinforcement beam also serves as a handle for carrying the dust filter bag.

7. The fully enclosed dust removal device for the crushing and discharging port of the aggregate line according to claim 4 is characterized in that: The vertical pipe and its partition plate are made of metal, and the vertical pipe is connected to an electrostatic ground wire.

8. The fully enclosed dust removal device for the crushing and discharging port of an aggregate line according to any one of claims 1 to 3, characterized in that: The discharge hopper has a double-wall structure, and a plurality of reinforcing plates are connected between the inner wall and the outer wall of the discharge hopper.

9. The fully enclosed dust removal device for the crushing and discharging port of an aggregate line according to any one of claims 1 to 3, characterized in that: Ground markings extend from outside the passage door to the unloading hopper. The ground markings are suitable for the unloading vehicle to reverse from outside the unloading shed to the unloading hopper according to the guidance of the ground markings. One or more cameras are arranged in the unloading shed, and the cameras are suitable for imaging the scene in the unloading shed. A screen suitable for being viewed by the reversing driver is arranged outside the unloading shed, and the screen is suitable for playing the image of the camera.

10. The fully enclosed dust removal device for the crushing and discharging port of an aggregate line according to any one of claims 1 to 3, characterized in that: The passage door is provided with a proximity switch suitable for detecting the passage of people and vehicles. The proximity switch is electrically connected to an alarm. The alarm sounds when the proximity switch detects that there are people and vehicles passing through the passage door.

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