Dust suppression coal conveying system and method

Abstract

The invention provides a dust suppression coal conveying system and method, and belongs to the technical field of dust collection equipment. The dust suppression coal conveying system comprises a dust collecting assembly and a conveying assembly. A feeding part is arranged at the top of the dust collecting box, and a conical discharging bin is arranged at the bottom of the dust collecting box; the mounting plate is mounted at the discharging end of the conical discharging bin, a protective barrel is arranged on the portion, located under the conical discharging bin, of the mounting plate, a driving part is mounted on the portion, located on one side of the protective barrel, of the mounting plate, a rotating part is mounted at the driving end of the driving part, and the rotating part is rotationally arranged in the protective barrel; when the rotating piece rotates, the blades can rotate to the inner bottom of the conical discharging bin. And through the arrangement of the rotating piece, blockage is avoided when dust is discharged through the conical discharging bin, so that the situation that the whole equipment needs to be dredged is prevented, and the production efficiency of the whole coal conveying system is improved.

Description

Technical Field

[0001] This application relates to the field of dust collection equipment, and more specifically, to a dust suppression coal conveying system and method. Background Art

[0002] A coal conveying system is a system used for coal conveying. It includes a coal feeder, a conveyor, a ring hammer crusher, a screening device, an elevator, a slag remover, a magnetic separator, a bin wall vibrator, an electro-hydraulic (variable trough angle) plough diverter, boiler auxiliaries, a three-way baffle, a dust removal system, a spraying system, etc.

[0003] A new type of coal-fired conveying system with a Zndp type series crusher, its main equipment configurations include: a coal storage yard, a coal feeder, a No. 1 belt conveyor, an inclined roller screen, a Zndp type crusher, a No. 2 belt conveyor, a magnetic separator, a dust collector, a sampler, a diverter, and a boiler coal storage bin.

[0004] The new type of coal-fired conveying system selects a Zndp type series crusher as the main equipment of the coal conveying system, combines the coarse crusher and the fine crusher into one, and reduces a set of belt conveyors. Thus, there are the following prominent advantages: First, the equipment cost is reduced, the system layout is compact, the occupied area of the conveying and coal breaking building is reduced, and the investment in the entire infrastructure funds is effectively compressed. Second, the number of crushing and conveying links is reduced, and the failure rate is effectively reduced, which better ensures the normal operation of the entire system equipment. Third, with fewer equipment, the overall energy consumption is reduced. Compared with domestic similar products for crushers alone, more than 300,000 yuan can be saved annually. Fourth, it has good sealing performance, an excellent equipment environment, good long-term stability, and a maintenance cycle of about one year, reducing the operation cost.

[0005] Coalbed methane usually contains a large amount of dust. When extracting coalbed methane, it is usually necessary to filter solid impurities such as dust in the coalbed methane. Currently, common coalbed methane gathering and transportation filtering equipment on the market is divided into two major types: dust removal and dehumidification. The dust removal methods generally include two methods: spraying and filter screen filtration. Filter screen filtration is a physical filtration method, mainly used for filtering dust, and the filtration efficiency is not affected by the properties of the dust. However, the dust after spraying has a higher humidity and is prone to sticking together, which makes it easy to clog during feeding. If clogging occurs, it needs to be dredged, thereby reducing the dust collection efficiency and production efficiency. Summary of the Invention

[0006] To make up for the above deficiencies, this application provides a dust suppression coal conveying system and method, aiming to improve the problem that the dust after spraying has a higher humidity and is prone to sticking together, which makes it easy to clog during feeding. If clogging occurs, it needs to be dredged, thereby reducing the dust collection efficiency and production efficiency.

[0007] On the one hand, an embodiment of the present application provides a dust suppression coal conveying system, which includes a dust collection component and a conveying component.

[0008] The dust collection component includes a dust collection box. A feeding part is arranged at the top of the dust collection box, and a conical blanking bin is arranged at the bottom of the dust collection box.

[0009] The conveying component includes a mounting plate. The mounting plate is installed at the discharging end of the conical blanking bin. A protective cylinder is arranged directly below the conical blanking bin on the mounting plate. A driving part is installed on one side of the protective cylinder on the mounting plate. A rotating part is installed at the driving end of the driving part, and the rotating part is rotatably arranged inside the protective cylinder. When the rotating part rotates, the blades will rotate to the inner bottom of the conical blanking bin. Among them, the dust pipeline generated by the coal conveying system is communicated with the feeding part, so that the dust enters the dust collection box; the spraying part is turned on, and the spraying part wets the dust entering the dust collection box to increase the humidity of the dust; the wetted dust drops into the conical blanking bin for blanking: during blanking, the driving part is started to make the rotating part rotate, so as to realize the smooth blanking of the dust. Through the setting of the rotating part, the dust will not be blocked when blanking through the conical blanking bin, thus preventing the whole equipment from needing to be dredged and improving the production efficiency of the whole coal conveying system.

[0010] In a specific implementation scheme, the rotating part includes a rotating rod. One end of the rotating rod is fixedly connected with the driving part, and the other end of the rotating rod movably penetrates through one side wall of the protective cylinder and is rotatably connected with the other side wall of the protective cylinder. A plurality of scraping plates are arranged in a circular array on the outer side of the rotating rod inside the protective cylinder, and the scraping plates are located at the inner bottom of the conical blanking bin when rotating.

[0011] In a specific implementation scheme, material grooves are opened at both the top and the bottom of the protective cylinder.

[0012] In a specific implementation scheme, a connecting plate is installed at the top of the protective cylinder, and the connecting plate is connected with the bottom of the conical blanking bin.

[0013] In a specific implementation scheme, a support member is installed at the bottom of the conical blanking bin.

[0014] In a specific implementation scheme, a spraying part is further arranged inside the dust collection box.

[0015] In a specific implementation scheme, the spraying part includes a driving part. The driving part is installed on the outer side wall of the dust collection box. The liquid outlet end of the driving part is communicated with a spraying pipe, and each spraying pipe extends into the dust collection box.

[0016] In a specific embodiment, a support bracket is installed inside the dust collection box, and the spray pipe is installed on the support bracket.

[0017] In a specific embodiment, a maintenance door is provided on a side wall of the dust collection box away from the driving part. When the maintenance door is opened, the spray pipe is exposed.

[0018] On the other hand, another method for suppressing dust during coal transportation provided by the embodiments of the present application includes the following steps:

[0019] Step 1: Connect the dust pipeline generated by the coal transportation system to the feeding part so that the dust enters the inside of the dust collection box;

[0020] Step 2: Open the spraying member, and the spraying member wets the dust entering the inside of the dust collection box to increase the humidity of the dust;

[0021] Step 3: The wetted dust drops into the conical feeding bin for feeding:

[0022] Step 4: When feeding, start the driving member to make the rotating member rotate, so as to realize the smooth feeding of the dust.

[0023] Beneficial effects: The present application provides a dust suppression coal transportation system and method. The dust pipeline generated by the coal transportation system is connected to the feeding part so that the dust enters the inside of the dust collection box; the spraying member is opened, and the spraying member wets the dust entering the inside of the dust collection box to increase the humidity of the dust; the wetted dust drops into the conical feeding bin for feeding: when feeding, start the driving member to make the rotating member rotate, so as to realize the smooth feeding of the dust. Through the setting of the rotating member, the dust will not be blocked when passing through the conical feeding bin, thereby preventing the entire equipment from needing to be dredged and improving the production efficiency of the entire coal transportation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of the dust suppression coal transportation system and method provided by the embodiments of the present application;

[0026] Figure 2 It is a schematic structural diagram of the dust suppression coal transportation system provided by the embodiments of the present application;

[0027] Figure 3Schematic structural diagram of the conveying component provided by the embodiment of the present application;

[0028] Figure 4 Schematic cross-sectional structural diagram of the conveying component provided by the embodiment of the present application;

[0029] Figure 5 Schematic structural diagram of the protective cylinder provided by the embodiment of the present application;

[0030] Figure 6 Schematic structural diagram of the rotating part provided by the embodiment of the present application;

[0031] Figure 7 Schematic structural diagram of the spraying part provided by the embodiment of the present application.

[0032] In the figure: 10 - dust collection component; 110 - dust collection box; 120 - feeding part; 130 - conical blanking bin; 150 - support part; 160 - spraying part; 161 - driving part; 162 - spraying pipe; 170 - supporting bracket; 20 - conveying component; 210 - mounting plate; 220 - connecting plate; 230 - driving part; 240 - protective cylinder; 241 - material trough; 250 - rotating part; 251 - rotating rod; 252 - scraper. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0034] Please refer to Figures 1 - 7 , the present application provides a dust suppression coal conveying system including a dust collection component 10 and a conveying component 20.

[0035] Among them, the dust pipeline generated by the coal conveying system is communicated with the feeding part 120, so that the dust enters the inside of the dust collection box 110; the spraying part 160 is opened, and the spraying part 160 wets the dust entering the inside of the dust collection box 110 to increase the humidity of the dust; the wetted dust falls into the conical blanking bin 130 for blanking: during blanking, the driving part 230 is started, so that the rotating part 250 rotates, thereby realizing the smooth blanking of the dust.

[0036] Please refer to Figure 1 , Figure 2 and Figure 7 , the dust collection component 10 includes a dust collection box 110, the top of the dust collection box 110 is provided with a feeding part 120, and the bottom of the dust collection box 110 is provided with a conical blanking bin 130; among them, the dust collection box 110 collects the dust generated during coal conveying.

[0037] In this embodiment, a support member 150 is installed at the bottom of the conical blanking bin 130. Among them, the support member 150 supports the entire device to ensure the normal blanking of dust.

[0038] In this embodiment, a spraying member 160 is further provided inside the dust collection box 110. The spraying member 160 includes a driving part 161. The driving part 161 is installed on the outer side wall of the dust collection box 110. The liquid outlet end of the driving part 161 is communicated with a spraying pipe 162, and each spraying pipe 162 extends into the dust collection box 110. A supporting bracket 170 is installed inside the dust collection box 110, and the spraying pipe 162 is installed on the supporting bracket 170. Among them, when it is necessary to spray the dust, the driving part 161 is started to convey the spraying water into the spraying pipe 162, so as to realize spraying and wetting the dust inside the dust collection box 110 and prevent the dust from flying.

[0039] When specifically setting, a maintenance door is provided on a side wall of the dust collection box 110 away from the driving part 161. When the maintenance door is opened, the spraying pipe 162 is exposed. Among them, when the spraying pipe 162 is blocked, the maintenance door can be opened to dredge the spraying pipe 162.

[0040] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , the conveying assembly 20 includes a mounting plate 210. The mounting plate 210 is installed at the discharge end of the conical blanking bin 130. A protective cylinder 240 is arranged directly below the mounting plate 210 of the conical blanking bin 130. A driving member 230 is installed on one side of the mounting plate 210 located in the protective cylinder 240. The driving end of the driving member 230 is installed with a rotating member 250, and the rotating member 250 is rotatably arranged inside the protective cylinder 240. When the rotating member 250 rotates, the blades will rotate to the inner bottom of the conical blanking bin 130. Among them, the dust pipeline generated by the coal conveying system is communicated with the feeding part 120, so that the dust enters the dust collection box 110; the spraying member 160 is opened, and the spraying member 160 wets the dust entering the dust collection box 110 to increase the humidity of the dust; the wetted dust drops into the conical blanking bin 130 for blanking: when blanking, the driving member 230 is started to make the rotating member 250 rotate, so as to realize the smooth blanking of the dust. Through the setting of the rotating member 250, the dust will not be blocked when blanking through the conical blanking bin 130, thus preventing the need to dredge the entire equipment and improving the production efficiency of the entire coal conveying system.

[0041] In this embodiment, the rotating member 250 includes a rotating rod 251. One end of the rotating rod 251 is fixedly connected to the driving member 230, and the other end of the rotating rod 251 movably penetrates through one side wall of the protective cylinder 240 and is rotatably connected to the other side wall of the protective cylinder 240. A plurality of scraping plates 252 are arranged in a circular array on the outer side of the rotating rod 251 inside the protective cylinder 240, and the scraping plates 252 are located at the inner bottom of the conical blanking bin 130 when rotating. Among them, when the driving member 230 is started, the rotating rod 251 rotates, and each scraping plate 252 also rotates accordingly when the rotating rod 251 rotates, so as to carry the dust in a rotating manner. And because the scraping plates 252 are located at the inner bottom of the conical blanking bin 130 when rotating, the dust at the inner bottom of the conical blanking bin 130 can be scraped, thereby preventing the dust from being blocked.

[0042] When specifically arranged, material grooves 241 are provided at both the top and the bottom of the protective cylinder 240. A connecting plate 220 is installed at the top of the protective cylinder 240, and the connecting plate 220 is connected to the bottom of the conical blanking bin 130. Among them, the material grooves 241 can ensure the normal blanking of the dust.

[0043] In this embodiment, a dust monitoring module can be set: a laser dust sensor or an infrared dust meter, which is deployed at key positions such as conveyor belts, coal dropping pipes, and transfer points; and the dust concentration, particle size distribution, and diffusion trend are monitored in real time.

[0044] The spraying member 160 can adopt a high-pressure atomizing nozzle: micron-level water mist particles are generated through compressed air or ultrasonic technology, and the coverage range is wide; or an intelligent nozzle array: the spraying range, particle size, and coverage range are automatically adjusted according to the dust concentration; the spraying member 160 can also be added with an additive system: chemical reagents such as wetting agents and adhesives can be selected to enhance the dust bonding effect.

[0045] The spraying member 160 also includes a circulating water system: a sedimentation tank, a filtering device, and a circulating water pump, to realize the recovery and recycling of the water mist; a sewage treatment module can be integrated to avoid the discharge of sewage.

[0046] This application also includes a control unit and a software system: the control unit is an industrial-grade PLC or an edge controller, which supports real-time data acquisition and decision-making; the human-machine interface (HMI) is used for parameter setting, status monitoring, and alarm prompting.

[0047] The software system includes a data acquisition and transmission layer and a control algorithm layer. The data acquisition and transmission layer is for sensor data fusion (dust concentration, wind speed, humidity, etc.); it is transmitted to the control center through industrial Ethernet or wireless communication technology. The control algorithm layer can perform adaptive spray control: based on PID or fuzzy control algorithms, dynamically adjust the spray intensity; a dust diffusion prediction model: combine CFD simulation with real-time data to predict the dust diffusion path; a resource optimization algorithm: optimize the spray strategy with the goal of minimum water consumption or energy consumption. A remote monitoring platform: real-time display of the dust concentration heat map, equipment status, and historical data analysis; support for remote fault diagnosis and parameter update.

[0048] Please refer to Figures 1 - 7 , another method for suppressing dust in coal transportation provided by an embodiment of this application includes the following steps:

[0049] Step 1: Connect the dust pipeline generated by the coal transportation system to the feeding part 120 so that the dust enters the inside of the dust collection box 110;

[0050] Step 2: Open the spraying part 160, and the spraying part 160 wets the dust entering the inside of the dust collection box 110 to increase the humidity of the dust;

[0051] Step 3: The wetted dust drops into the conical blanking bin 130 for blanking:

[0052] Step 4: When blanking, start the driving part 230 to make the rotating part 250 rotate, so as to achieve the smooth blanking of the dust.

[0053] The working principle of this dust suppression and coal transportation system and method: Connect the dust pipeline generated by the coal transportation system to the feeding part 120 so that the dust enters the inside of the dust collection box 110; open the spraying part 160, and the spraying part 160 wets the dust entering the inside of the dust collection box 110 to increase the humidity of the dust; the wetted dust drops into the conical blanking bin 130 for blanking: when blanking, start the driving part 230 to make the rotating part 250 rotate, so as to achieve the smooth blanking of the dust. Through the setting of the rotating part 250, the dust will not be blocked when blanking through the conical blanking bin 130, thereby preventing the need to dredge the entire equipment and improving the production efficiency of the entire coal transportation system.

[0054] It should be noted that the specific model specifications of the driving part 161 and the driving part 230 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0055] The power supply and its principle of the driving part 161 and the driving part 230 are clear to those skilled in the art and will not be elaborated here.

[0056] The above are only embodiments of the present application and are not intended to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A dust suppression coal conveying system, characterized in that: include A dust collection assembly (10) comprises a dust collection box (110), wherein a feeding portion (120) is arranged at the top of the dust collection box (110), and a conical lower bin (130) is arranged at the bottom of the dust collection box (110); The conveying component (20) includes a mounting plate (210), wherein the mounting plate (210) is mounted on the discharge end of the conical lower silo (130), and a protective tube (240) is provided directly below the mounting plate (210) and a driving member (230) is installed on one side of the protective tube (240) located on the mounting plate (210). A rotating member (250) is installed on the driving end of the driving member (230), and the rotating member (250) is rotatably arranged inside the protective tube (240), and when the rotating member (250) rotates, the blades of the rotating member (250) will rotate to the inner bottom of the conical lower silo (130).

2. A dust suppression coal transportation system according to claim 1, characterized in that: The rotating member (250) comprises a rotating rod (251), one end of which is fixedly connected to the driving member (230), and the other end of which movably passes through one side wall of the protective tube (240) and is rotatably connected to the other side wall of the protective tube (240); the rotating rod (251) is located on the outer side of the protective tube (240) and is provided with a plurality of scrapers (252) in a circular array, and the scrapers (252) are located at the inner bottom of the conical lower silo (130) when rotating.

3. A dust suppression coal transportation system according to claim 1, characterized in that: The top and bottom of the protective cylinder (240) are both provided with material grooves (241).

4. A dust suppression coal transportation system according to claim 1, characterized in that: A connecting plate (220) is installed on the top of the protective cylinder (240), and the connecting plate (220) is connected to the bottom of the conical lower silo (130).

5. A dust suppression coal transportation system according to claim 1, characterized in that: A support member (150) is installed at the bottom of the conical lower bin (130).

6. A dust suppression coal transportation system according to claim 1, characterized in that: A spraying element (160) is also provided inside the dust collection box (110).

7. A dust suppression coal transportation system according to claim 6, characterized in that: The spraying member (160) comprises a driving part (161), wherein the driving part (161) is mounted on the outer wall of the dust collecting box (110), a liquid outlet end of the driving part (161) is connected to a spraying pipe (162), and each of the spraying pipes (162) extends to the interior of the dust collecting box (110).

8. A dust suppression coal transportation system according to claim 7, characterized in that: A support frame (170) is installed inside the dust collection box (110), and the spray pipe (162) is installed on the support frame (170).

9. A dust suppression coal transportation system according to claim 7, characterized in that: A side wall of the dust collection box (110) away from the driving part (161) is provided with an inspection door, and when the inspection door is opened, the spray pipe (162) is exposed.

10. A method for conveying coal with dust suppression, characterized in that: The following steps are involved: Step 1: Connect the dust pipe generated by the coal conveying system to the feed part (120) so that the dust enters the dust collection box 110; Step 2: turning on the spraying element (160), the spraying element (160) wets the dust entering the dust collection box (110) to increase the humidity of the dust; Step 3: The wetted dust falls into the conical discharge bin (130) for discharge: Step 4: When unloading, start the driving member (230) to rotate the rotating member (250), thereby achieving smooth unloading of the dust.

Images