CN217349967U

CN217349967U - Ore sand hopper with good dust suppression function

Info

Publication number: CN217349967U
Application number: CN202221364591.7U
Authority: CN
Inventors: 张春林; 陈宏�; 陆兵; 李建军; 陆小兵
Original assignee: Qidong Cosco Sea Transportation Ocean Engineering Co ltd; Nantong Cosco Shipping Engineering Co ltd
Current assignee: Qidong Cosco Sea Transportation Ocean Engineering Co ltd; Nantong Cosco Shipping Engineering Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-09-02
Anticipated expiration: 2032-06-02

Abstract

The utility model relates to a press down good ore sand hopper of dirt function, include hopper body, screen assembly and press down dirt functional part. The screen mesh component is arranged in and fixed in the cavity of the hopper body. The dust suppression function part comprises vertical dust absorption equipment, a dust suppression pipeline system and a dust storage box. The vertical dust suction devices are arranged on one side of the hopper body side by side. The dust suppression pipeline system is composed of a dust absorption pipe component and an external air pipe. The dust suction pipe component is communicated with the cavity of the hopper body. The external air pipe is used for communication transition between the dust collection pipe assembly and the vertical dust collection equipment. The dust suppression box is matched with vertical dust collection equipment for application. Under the working state, the vertical dust collecting equipment is started, floating dust generated in the cavity of the hopper body circulates along the dust collecting pipe assembly, the external air pipe and the vertical dust collecting equipment under the action of air negative pressure, and is finally collected in the dust storage box. Therefore, the generation and the diffusion of the copper ore dust can be effectively inhibited, and the whole set of equipment has relatively low cost and is beneficial to popularization.

Description

Mineral sand hopper with good dust suppression function

Technical Field

The utility model belongs to the technical field of ore sand unloading equipment manufacture technique and specifically relates to a press down good ore sand hopper of dirt function.

Background

The copper ore sand is a fine sandy copper ore with high copper-containing quality. When the copper ore carrier is in shore, the copper ore needs to be transferred to a belt conveyor by a shore portal crane (5 t) so as to be conveyed to a freight car or a designated storage point. The belt conveyer is matched with a mineral sand hopper. Under operating condition, at first, borrow by the grab bucket of high pedestal jib crane in order to snatch the copper ore sand in the cabin, afterwards, high pedestal jib crane continues to move in order to adjust the relative position of grab bucket, and after the adjustment targets in place, the grab bucket opens in order to release copper ore sand to the ore sand hopper for copper ore sand blanking to the conveyer belt of band conveyer in a controlled manner, take place the material phenomenon of spilling at the in-process of being towards the band conveyer transfer by high pedestal jib crane grab bucket.

In the actual material transfer process, after the high pedestal jib crane grab bucket snatched copper ore sand and shifted to directly over the ore sand hopper, and in the twinkling of an eye towards the ore sand hopper is unloaded, probably can produce a large amount of dust. The dust not only harms the health of workers, causes occupational diseases, but also causes serious atmospheric pollution to wharf areas, is not beneficial to the implementation of national environmental protection policies, and has explosion risks when copper dust or particulate matters in the air reach the limit concentration. According to investigation, for environmental protection, it is common practice to use a water spray method, i.e. a large number of spray heads are arranged around the ore sand hopper, and during the discharging process, high-pressure water is sprayed through the spray heads to form protective water mist around the ore sand hopper. Although the scheme can effectively inhibit the generation and the diffusion of the copper ore dust, the purchase cost of the whole set of spraying equipment is extremely high, and a water supply station and a sewage treatment station are additionally arranged, so that the investment cost is further increased. In addition, in the subsequent stage, the wet copper ore sand is dried by hot air equipment to be matched, so that the storage is facilitated. Thus, a skilled person is urgently needed to solve the above problems.

Disclosure of Invention

Therefore, in view of the above-mentioned problems and defects, the present invention provides a method for designing a mineral sand hopper, which comprises collecting relevant data, evaluating and considering data in multiple ways, and continuously performing experiments and modifications by technical personnel engaged in years of research and development experience in the industry, thereby finally resulting in the occurrence of the mineral sand hopper with good dust suppression function.

In order to solve the technical problem, the utility model relates to a press down good ore sand hopper of dirt function, with supporting the application of gate crane, band conveyer to realize unloading, the transportation operation of ore sand, it is including hopper body and screen assembly. The hopper body is simultaneously provided with a feeding hole and a discharging hole. The screen assembly is arranged in and fixed in the cavity of the hopper body so as to filter ore sand fed through the feeding hole. In addition, the ore sand hopper with good dust suppression function also comprises a dust suppression function part. The dust suppression function part comprises vertical dust absorption equipment, a dust suppression pipeline system and a dust storage box. The vertical dust suction devices are arranged on one side of the hopper body side by side. The dust suppression pipeline system is composed of a dust absorption pipe component and an external air pipe. The dust suction pipe assembly is communicated with the cavity of the hopper body and is arranged higher than the screen assembly. The external air pipe is used for communication transition between the dust collection pipe assembly and the vertical dust collection equipment. The dust suppression box for temporarily storing dust is matched with the vertical dust collection equipment for application. In the working state, the vertical dust suction device is started, the dust suction pipe assembly is continuously supplied with negative pressure air, and floating dust generated in the cavity of the hopper body is intensively stored under the action of the air negative pressure.

As a further improvement of the technical proposal of the utility model, the dust absorption pipe component is preferably a split structure and is composed of a first dust suppression pipe component and a second dust suppression pipe component. Wherein the first dust suppression tube assembly comprises a first profiled dust suppression air duct and a plurality of first dust absorption nozzles. The second dust suppression tube assembly includes a second profiled dust suppression air duct and a plurality of second dust extraction nozzles. The first special-shaped dust suppression air pipe and the second special-shaped dust suppression air pipe are fixed around the outer side wall of the hopper body. The first dust suction nozzles and the second dust suction nozzles are respectively arranged at equal intervals along the length extension direction of the first special-shaped dust suppression air pipe and the second special-shaped dust suppression air pipe and penetrate through the hopper body.

As a further improvement of the technical proposal of the utility model, the first dust suppression pipe component also comprises a first transition hose. The first transition hose is connected between the external air pipe and the first special-shaped dust suppression air pipe. The second dust suppression tube assembly also includes a second transition hose. The second transition hose is connected between the external air pipe and the second special-shaped dust suppression air pipe.

As the technical scheme of the utility model improve further, the hopper body is formed by the Q345B steel sheet that polylith thickness is not less than 8mm according to the preface tailor-welding.

As a further improvement of the technical proposal of the utility model, the screen mesh component is composed of a grating plate and a steel plate mesh. Wherein, the grating plate is arranged horizontally, and is arranged in and fixed in the cavity of the hopper body. The steel plate net is laid on the grating plate and fixed as a whole in a detachable mode.

As the technical scheme of the utility model the further improvement, press down the ore sand hopper that the dust function is good still includes excitation emergence portion. Under the working state, the excitation generating part continuously applies high-frequency excitation force to the hopper body and is composed of at least one vibration motor detachably fixed on the outer side wall of the hopper body.

Compare in the ore sand hopper of traditional project organization the utility model discloses an among the technical scheme, the ore sand hopper is supporting to have dust suppression function portion. In the ore sand unloading process, the vertical dust collecting equipment is always kept in a starting state to continuously supply negative pressure air to the external air pipe and the dust collecting pipe assembly, so that the cavity of the hopper body is kept in a negative pressure state, floating dust generated in the cavity of the hopper body is circulated along the dust collecting pipe assembly, the external air pipe and the vertical dust collecting equipment under the action of air negative pressure, and is finally collected in the dust storage box. Therefore, on one hand, the generation and the diffusion of the copper ore dust can be effectively inhibited, namely the phenomenon of environmental pollution is avoided; on the other hand, the whole set of equipment has relatively low manufacturing cost, saves construction sites and is beneficial to popularization and promotion in the ore discharging wharf.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a mineral sand hopper with good dust suppression function.

Fig. 2 is a side view of the ore sand hopper with good dust suppression function.

Fig. 3 is a top view of the ore sand hopper with good dust suppression function.

Fig. 4 is a layout schematic diagram of a visual angle of the dust suction pipe assembly relative to the hopper body in the ore sand hopper with good dust suppression function.

Fig. 5 is a layout schematic diagram of another view angle of the dust suction pipe assembly in the ore sand hopper with good dust suppression function relative to the hopper body.

1-a hopper body; 11-a feed inlet; 12-a discharge hole; 2-a screen assembly; 21-a grid plate; 22-steel plate net; 3-dust suppression function part; 31-upright dust extraction equipment; 32-dust suppression piping system; 321-a suction hose assembly; 3211-a first dust suppression pipe assembly; 32111-a first special-shaped dust-suppressing air duct; 32112-first dust extraction nozzle; 32113-a first transition hose; 3212-a second dust suppression pipe assembly; 32121-a second special-shaped dust suppression air duct; 32122-a second suction nozzle; 32123-a second transition hose; 322-external air pipe; 33-a dust storage box; 4-excitation generating part; 41-vibration motor.

Detailed Description

In the description of the present invention, it is to be understood that the terms "front", "back", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The following description is made in detail in connection with the specific embodiments, and fig. 1, fig. 2, and fig. 3 respectively show the main view, the side view, and the top view of the ore sand hopper with good dust suppression function, so that the ore sand hopper can be used with the gantry crane and the belt conveyor to achieve the unloading and transporting operations of ore sand. The ore sand hopper mainly comprises a hopper body 1, a screen assembly 2, a dust suppression functional part 3 and the like. Wherein, hopper body 1 presents the horn structure of "big-end-up" on the whole, preferentially forms by the orderly tailor-welding of the Q345B steel sheet that polylith thickness is no less than 8mm, and is equipped with feed inlet 11 and discharge gate 12 simultaneously on it. The screen assembly 2 is arranged in and fixed in the cavity of the hopper body 1 so as to primarily filter ore sand fed through the feeding hole. The feed inlet 11 is used for receiving ore sand grabbed by a shore portal crane and has a minimum size of more than or equal to 4000mmx3600 mm. The discharge port 12 is used for conveying the ore sand filtered by the screen assembly 2 to a belt conveyor, and the minimum size of the ore sand is more than or equal to 280X280 mm. The dust suppression function part 3 comprises a vertical dust suction device 31, a dust suppression pipeline system 32 and a dust storage box 33. The vertical type dust suction apparatuses 31 are arranged side by side at one side of the hopper body 1, and are provided with a high speed fan for generating negative pressure air. The dust suppression duct system 32 is composed of a dust suction duct assembly 321 and an external air duct 322. The dust suction pipe assembly 321 is communicated with the cavity of the hopper body 1 and is disposed higher than the screen assembly 2. The external air hose 322 serves as a communication transition between the suction hose assembly 321 and the upright cleaning apparatus 31. The dust suppression box 33 is used for temporarily storing dust, is used in cooperation with the vertical dust suction device 31, and is placed right below the discharge opening of the vertical dust suction device 31. In the working state, the upright dust suction device 31 is started, the suction pipe assembly 321 is continuously supplied with negative pressure air, and the floating dust generated in the cavity of the hopper body 1 is intensively stored under the action of the air negative pressure.

In the process of discharging ore sand, the vertical dust suction device 31 is always kept in the starting state, the high-speed fan is started to continuously supply negative pressure air (the pressure is controlled between-0.5 MPa and-0.7 MPa) to the external air pipe 322 and the dust suction pipe assembly 321, so that the cavity of the hopper body 1 is kept in the negative pressure state, and thus, floating dust generated in the cavity of the hopper body 1 circulates along the dust suction pipe assembly 321, the external air pipe 322 and the vertical dust suction device 31 under the action of the negative air pressure and is finally collected in the dust storage box 33.

In practical application, the ore sand hopper with good dust suppression function at least has the following beneficial effects:

1) effectively inhibiting the generation and the diffusion of copper ore dust, namely avoiding the occurrence of the phenomenon of environmental pollution;

2) the whole set of equipment has relatively low manufacturing cost, saves construction sites, and is favorable for popularization and promotion in the ore discharging wharf.

As a further optimization of the above-described ore hopper structure with good dust suppression function, as shown in fig. 4 and 5, the dust suction pipe assembly 321 is preferably a split structure, which is composed of a first dust suppression pipe assembly 3211 and a second dust suppression pipe assembly 3212. Wherein the first dust suppression duct assembly 3211 includes a first profiled dust suppression duct 32111 and a plurality of first dust absorption nozzles 32112. The second dust suppression duct assembly 3212 includes a second profiled dust suppression duct 32121 and a plurality of second suction nozzles 32122. The first special-shaped dust suppression air pipe 32111 and the second special-shaped dust suppression air pipe 32121 are fixed around the outer side wall of the hopper body 1. The first dust suction nozzle 32112 and the second dust suction nozzle 32122 are respectively arranged along the length extension direction of the first special-shaped dust suppression air duct 32111 and the second special-shaped dust suppression air duct 32121 at equal intervals, and penetrate through the hopper body 1. The sum of the numbers of the first suction nozzles 32112 and the second suction nozzles 32122 is not less than 10. After the hopper body 1 is welded, a plurality of first openings are formed on the sidewall thereofThe outer diameters of the dust suction nozzle 32112 and the second dust suction nozzle 32122 are matched with each other. Therefore, the first dust suction nozzles 32112 and the second dust suction nozzles 32122 which are uniformly distributed in the circumferential direction cooperate with each other to form stable negative pressure in the inner cavity of the hopper body 1, so that floating dust is timely and thoroughly contained. Proved by experiments, the dust removal rate of the floating dust is more than or equal to 95 percent, and the dust concentration in the area of the feed inlet 11 is ensured to be less than or equal to 30mg/m ³ And completely meets the national environmental protection acceptance standard.

In addition, it should be noted that, due to the split structure design, when the dust collection pipe assembly 321 is locally aged or damaged after a period of operation, a maintenance person can perform a repair or an overall replacement operation on the first dust suppression pipe assembly 3211 and the second dust suppression pipe assembly 3212 in a targeted manner, which is beneficial to reducing the difficulty and cost of later maintenance.

In order to relax the requirement of the alignment precision between the first special-shaped dust suppression air pipe 32111, the second special-shaped dust suppression air pipe 32121 and the external air pipe 322 and further reduce the assembly difficulty, as a further optimization of the ore sand hopper structure with good dust suppression function, as shown in fig. 4 and 5, a first transition hose 32113 is further added to the first dust suppression pipe assembly 3211. A first transition hose 32113 is connected between the external air duct 322 and the first special-shaped dust suppression air duct 32111. Similarly, a second transition hose 32123 may be added to the second dust suppression pipe assembly 3212. A second transition hose 32123 is connected between the external air duct 322 and a second shaped dust suppressing air duct 32121. In addition, the addition of the first transition hose 32113 and the second transition hose 32123 can effectively prevent the exciting force from being transmitted to the hopper body 1 through the external air pipe 322 in the actual operation of the vertical dust collecting equipment, so as to ensure that the vertical dust collecting equipment is kept at the correct relative position for a long time, avoid the occurrence of the inclination phenomenon, and facilitate the accurate feeding of the ore sand by means of the gantry crane grab bucket.

It is known that, in accordance with common design knowledge, the screen assembly 2 may take a variety of designs to achieve a preliminary screening of the sand to separate large size rocks or debris from the sand. However, an embodiment is proposed herein, which has a simple design structure, is easy to manufacture and implement, and is convenient to perform maintenance and replacement operations at a later stage, specifically as follows: as shown in fig. 3, the screen assembly 2 is preferably composed of a grating plate 21 and a expanded steel 22. Wherein, the grating plate 21 is arranged horizontally, and is arranged and fixed in the cavity of the hopper body 1. The steel screen 22 is used for filtering ore sand and has an opening size controlled to 50mm by 50 mm. The steel plate net 22 is laid on the grating plate 21 and detachably fixed as a single body. The grating plates 21 mainly function to support the expanded steel 22.

Finally, as clearly shown in fig. 2, the ore sand hopper with good dust suppression function is further provided with an excitation generator 4 to ensure that ore sand can smoothly penetrate through the steel screen 22, thereby avoiding the phenomenon of material circulation blockage caused by local clamping. In the working state, the excitation generator 4 continuously applies high-frequency excitation force to the hopper body 1, and is composed of two vibrating motors 41 which are symmetrically and detachably fixed on the left and right outer side walls of the hopper body 1.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mineral sand hopper with good dust suppression function is applied by being matched with a gate crane and a belt conveyor to realize the unloading and transportation operation of mineral sand, and comprises a hopper body and a screen assembly; the hopper body is simultaneously provided with a feeding hole and a discharging hole; the screen assembly is arranged in and fixed in the cavity of the hopper body to filter ore sand fed through the feed inlet, and is characterized by also comprising a dust suppression function part; the dust suppression functional part comprises vertical dust collection equipment, a dust suppression pipeline system and a dust storage box; the vertical dust suction devices are arranged on one side of the hopper body side by side; the dust suppression pipeline system consists of a dust absorption pipe component and an external air pipe; the dust collection pipe assembly is communicated with the cavity of the hopper body and is arranged higher than the screen assembly; the external air pipe is used for communication transition between the dust collection pipe assembly and the vertical dust collection equipment; the dust storage box for temporarily storing dust is matched with the vertical dust collection equipment for application; in a working state, the vertical dust suction device is started, the dust suction pipe assembly is continuously supplied with negative pressure air, and floating dust generated in the cavity of the hopper body is intensively stored under the action of the air negative pressure.

2. The dust suppressing ore hopper as recited in claim 1, wherein said dust suction pipe assembly is a split structure consisting of a first dust suppressing pipe assembly and a second dust suppressing pipe assembly; wherein the first dust suppression tube assembly comprises a first profiled dust suppression air duct and a plurality of first dust absorption nozzles; the second dust suppression pipe assembly comprises a second special-shaped dust suppression air pipe and a plurality of second dust suction nozzles; the first special-shaped dust suppression air pipe and the second special-shaped dust suppression air pipe are fixed around the outer side wall of the hopper body; the first dust suction nozzles and the second dust suction nozzles are respectively arranged at equal intervals along the length extension direction of the first special-shaped dust suppression air pipe and the second special-shaped dust suppression air pipe and penetrate through the hopper body.

3. A dust suppressing ore hopper according to claim 2 wherein said first dust suppressing pipe assembly further comprises a first transition hose; the first transition hose is connected between the external air pipe and the first special-shaped dust suppression air pipe; the second dust suppression pipe assembly further comprises a second transition hose; the second transition hose is connected between the external air pipe and the second special-shaped dust suppression air pipe.

4. The ore sand hopper with good dust suppression function as recited in claim 1, wherein the hopper body is formed by sequentially welding a plurality of Q345B steel plates with the thickness of not less than 8 mm.

5. A dust suppressing ore sand hopper according to any of claims 1-4, characterized in that the screen assembly is composed of a grid plate and a steel sheet net; the grating plates are arranged horizontally, are arranged in the cavity of the hopper body and are fixed in the cavity of the hopper body; the steel plate net is flatly paved on the grating plate and is detachably fixed into a whole.

6. The ore hopper with good dust suppression function as claimed in any one of claims 1 to 4, further comprising a vibration excitation generating part; under the working state, the excitation generating part continuously applies high-frequency excitation force to the hopper body and is composed of at least one vibration motor detachably fixed on the outer side wall of the hopper body.