Coal mill stone coal collection device and coal mill assembly

Abstract

The present disclosure relates to a device for collecting pebble coal in a coal mill, which includes a collection box, a feed pipe and a discharge door. The collection box is formed with a closed accommodating chamber, and a feed port connected to the accommodating chamber is opened on the top of the collection box; the feed pipe is arranged on the top of the collection box, one end of the feed pipe is connected to the feed port, and the other end is used to connect to the discharge port of the coal mill body; the discharge door is rotatably connected to one side of the collection box. Through the above technical scheme, the collection box is set as a closed structure, the collection box is connected to the discharge port of the coal mill body through the feed pipe, and the pebble coal is discharged into the accommodating chamber of the collection box through the feed pipe, completing the collection of the pebble coal; after the collection box is full, the discharge door is opened by flipping over to discharge the pebble coal from the collection box. The problem that a large amount of dust is still generated when spraying water to reduce dust during the discharge of pebble coal, which seriously affects the safety and civilized cleaning on site is solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of pebble coal collection, and in particular, to a pebble coal collection device for a coal mill and a coal mill assembly. Background Art

[0002] During the operation of coal mill in the pulverizing system of thermal power plant, there are always some granular materials that are difficult to grind. These granular materials are called pebble coal. Pebble coal refers to the low calorific value coal gangue contained in the raw coal. Since the hardness of coal gangue is much greater than that of coal with high calorific value, when the coal mill is running, the powder that is not crushed into powder and has a specific gravity greater than the design requirement will be discharged from the coal mill through the discharge port of the coal mill base through the scraper brush, thus producing the technical equipment of pebble coal discharge of coal mill.

[0003] In the existing coal mill systems, most of them use open gravel coal hoppers to collect the gravel coal discharged from the coal mill. Spraying water is used to reduce dust when the gravel coal is discharged, but the dust reduction effect of spraying water is not good. A large amount of dust is still generated when the gravel coal is discharged, which seriously affects the safety and cleanliness of the site. Summary of the invention

[0004] The purpose of the present invention is to provide a coal mill pebble coal collection device to solve the problem that when pebble coal is discharged, spraying water to reduce dust still generates a large amount of dust, which seriously affects on-site safety and civilized cleanliness.

[0005] In order to achieve the above-mentioned object, the first aspect of the present disclosure provides a coal mill stone coal collecting device, comprising:

[0006] A collecting box, wherein the collecting box is formed with a closed accommodating cavity, and a feeding port communicating with the accommodating cavity is opened on the top of the collecting box;

[0007] A feed pipe, wherein the feed pipe is arranged at the top of the collecting box, one end of the feed pipe is connected to the feed port, and the other end of the feed pipe is used to be connected to the discharge port of the coal mill body; and

[0008] A discharge door is rotatably connected to one side of the collection box.

[0009] Optionally, the top of the discharge door is rotatably connected to the collection box;

[0010] The bottom of the collection box is also provided with a positioning insert for cooperating with the fork arm of a forklift, and the axis extension direction of the positioning insert is perpendicular to the discharge door so that the discharge door can be opened when it is driven by the fork arm of the forklift to rotate downward.

[0011] Optionally, one end of the positioning cannula close to the discharge door is hinged at a middle position of the bottom of the collection box.

[0012] Optionally, the collecting device further comprises an automatic opening and closing mechanism, wherein the automatic opening and closing mechanism comprises a driving part, a limiting part and a connecting part.

[0013] Wherein, the driving part comprises a driving rod connected to the collection box in an up-and-down manner through a rotating shaft and a first elastic member connected to the driving rod, and the first elastic member is connected between the positioning cannula and the first end of the driving rod;

[0014] The limiting part includes a vertically extending latch rod and a second elastic member connected between the latch rod and the collection box, and a bent portion is formed on the top of the latch rod and overlapped on the second end of the driving rod;

[0015] The connecting portion includes a connecting rod with one end connected to the side of the discharge door and the other end extending horizontally toward the interior of the accommodating cavity, and a socket for plugging and matching with the latch rod is formed on the connecting rod.

[0016] The automatic opening and closing mechanism is configured such that when the collection box rotates downward relative to the fork arm, the first elastic member pulls the driving rod to disengage the latch rod from the insertion hole to open the discharge door; when the collection box rotates in the opposite direction, the second elastic member drives the latch rod to reset to insert the connecting rod that is reset with the discharge door.

[0017] Optionally, the limiting portion further includes a first mounting seat, a second mounting seat and a baffle.

[0018] The first mounting seat is arranged on the collection box, the second mounting seat is arranged below the first mounting seat with a spacing, and the latch rod is movably inserted into the first mounting seat and the second mounting seat;

[0019] The baffle is fixed on the latch rod and is located between the first mounting seat and the second mounting seat.

[0020] The second elastic member is a spring sleeved on the latch rod, and two ends of the second elastic member are respectively connected between the first mounting seat and the baffle.

[0021] Optionally, the first elastic member is a spring wire.

[0022] Optionally, two groups of the automatic opening and closing mechanisms are provided, and the two groups of the automatic opening and closing mechanisms are disposed on opposite sides of the discharge door.

[0023] Optionally, the collection device also includes an anti-slip mechanism, which is arranged on a side opposite to the discharge door, and the anti-slip mechanism includes a shackle and a chain, the shackle is arranged on the positioning tube, one end of the chain is connected to the shackle, and the other end of the chain is connected to the collection box.

[0024] Optionally, an arc-shaped transition surface is provided at the end of the hinge between the positioning insertion tube and the collection box, and the convex surface of the arc-shaped transition surface is arranged toward the bottom surface of the collection box.

[0025] Optionally, a transparent observation window is also provided on the top of the collection box.

[0026] The second aspect of the present disclosure provides a coal mill assembly, including a coal mill body and a discharge valve connected to a discharge port of the coal mill body, and also including a spring seat and the coal mill stone coal collection device described in the first aspect, wherein the spring seat is arranged between the discharge valve and the collection box, one end of the spring seat is connected to the discharge valve, and the other end of the spring seat is connected to the collection box, and the interior of the spring seat is provided with a discharge channel for connecting the discharge valve and the collection box.

[0027] Optionally, a first sealing plate is provided between the spring seat and the collecting box, the first sealing plate is pressed against the pipe mouth of the feed pipe, a first through hole is opened on the first sealing plate, the first through hole is connected to the feed pipe, and the orifice diameter of the first through hole is smaller than the pipe mouth diameter of the feed pipe.

[0028] Optionally, a second sealing plate is provided between the discharge valve and the spring seat, a second through hole is opened on the second sealing plate, and the second sealing plate is used to seal the connection between the discharge valve and the spring seat.

[0029] Through the above technical solution, the collection box is set as a closed structure, and the collection box is connected to the discharge port of the coal mill body through the feed pipe. The pebble coal is discharged into the receiving cavity of the collection box through the feed pipe to complete the collection of the pebble coal; after the collection box is full, the discharge door is opened by flipping to discharge the pebble coal from the collection box. This solves the problem that when the pebble coal is discharged, spraying water to reduce dust still generates a lot of dust, which seriously affects the safety and civilized cleaning of the site.

[0030] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0032] Figure 1 It is a schematic diagram of the overall structure of a coal mill pebble coal collecting device and a coal mill assembly according to an embodiment of the present disclosure;

[0033] Figure 2 yes Figure 1 The schematic diagram of the structure of the collection box, feed inlet, observation window and discharge door of the coal mill pebble coal collection device is shown;

[0034] Figure 3 yes Figure 1 The structural intent of the anti-slip mechanism, positioning insert and observation window of the coal mill pebble coal collecting device is shown.

[0035] Description of Reference Numerals

[0036] 1. Collection box; 100. Feed inlet; 101. Observation window; 2. Feed pipe; 3. Discharge door; 4. Positioning insert; 400. Arc transition surface; 5. Automatic opening and closing mechanism; 500. Drive unit; 5001. Drive rod; 5002. First elastic member; 510. Limiting unit; 5101. First mounting seat; 5102. Second mounting seat; 5103. Latch rod; 5104. Baffle; 5105. Second elastic member; 520. Connecting unit; 5201. Connecting rod; 6. Anti-slip mechanism; 600. Shackle; 601. Chain; 7. Discharge valve; 8. Spring seat; 9. First sealing plate; 10. Second sealing plate. DETAILED DESCRIPTION

[0037] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0038] In the present disclosure, unless otherwise specified, directional words such as "up, down, left, right" generally refer to the directions when the coal mill stone coal collection device provided by the present disclosure is in normal use. "Inside and outside" refer to the inside and outside of the outline of the corresponding component. In addition, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The terms "first", "second" and the like used in the present disclosure are intended to distinguish one element from another and have no order or importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0039] The first aspect of the present disclosure provides a coal mill stone coal collection device, referring to Figure 1 and Figure 2The collecting device comprises a collecting box 1, a feed pipe 2 and a discharge door 3. The collecting box 1 is formed with a closed accommodating chamber structure, and a feed port 100 communicating with the accommodating chamber is provided at the top of the collecting box 1. The feed pipe 2 is arranged at the top of the collecting box 1, and one end of the feed pipe 2 is connected to the feed port 100, and the other end of the feed pipe 2 is used to be connected to the discharge port of the coal mill body, so that the pebble coal discharged from the discharge port is discharged into the accommodating chamber through the feed pipe 2. The discharge door 3 is rotatably connected to one side of the collecting box 1, and is used to discharge the pebble coal collected in the collecting box 1.

[0040] When the above-mentioned pebble coal collection device is used, the feed pipe 2 is first connected to the discharge port of the coal mill body, so that the discharge port is connected to the accommodating chamber of the collection box 1. At this time, the coal mill is started, and the pebble coal is discharged from the discharge port of the coal mill body, and discharged into the accommodating chamber of the collection box 1 through the feed pipe 2, completing the collection of the pebble coal. When the pebble coal in the collection box 1 is full, the feed pipe 2 is separated from the discharge port, and then the discharge door 3 on the side of the collection box 1 is opened by flipping to discharge the pebble coal.

[0041] In short, the collecting box 1 is set as a closed structure, and the pebble coal is discharged into the containing cavity of the collecting box 1 through the feeding pipe 2; after the collecting box 1 is full, the pebble coal is discharged from the collecting box 1 through the discharge door 3. The above technical solution solves the problem that when the pebble coal is discharged, a large amount of dust is still generated by spraying water to reduce dust, which seriously affects the safety and cleanliness of the site.

[0042] According to some embodiments, in order to facilitate the movement of the collecting device and the discharge of the collected stone coal, refer to Figure 1 and Figure 2 , the top of the discharge door 3 is rotatably connected to the collection box 1, and the bottom of the collection box 1 is provided with a positioning plug 4 for cooperating with the fork arm of the forklift. The axis extension direction of the positioning plug 4 is perpendicular to the discharge door 3, so that the discharge door 3 is opened when it is driven by the fork arm of the forklift to rotate downward. In this embodiment, two positioning plugs 4 are provided, and the axes of the two positioning plugs 4 are parallel and arranged at intervals at the bottom of the collection box 1. In actual use, the fork arm of the forklift is inserted into the two positioning plugs 4 along the axis extension direction of the positioning plug 4, and the collection box 1 is fixed on the forklift. The forklift transports the collection box 1 to a designated location for discharging the stone coal. During the discharge, the fork arm of the forklift tilts downward. Since the top of the discharge door 3 is hinged with the collection box 1, when the fork arm tilts downward, the collection box 1 is also driven to tilt downward. At this time, the discharge door 3 is opened under the action of gravity, and the stone coal is discharged from the collection box 1. After the stone coal is discharged, the fork arm of the forklift returns to the normal position, and the discharge door 3 rotates and closes under the action of gravity. This arrangement makes it easier to discharge the stone coal and improves work efficiency. Figure 1 and Figure 3The positioning insert 4 can be made of a flat steel tube that matches the fork arm of the forklift, or other materials. It can be selected according to actual needs and is not limited here.

[0043] like Figure 1 As shown, further, one end of the positioning insert 4 close to the discharge door 3 is hinged at the middle position of the bottom of the collection box 1. With this arrangement, when the collection box 1 discharges the stone coal, the fork arm of the forklift does not need to be tilted downward at a large angle, and the collection box 1 can be automatically turned downward with the hinge as the axis under the action of its gravity, and the discharge door 3 is opened to complete the discharge of the stone coal. With this arrangement, the stone coal in the collection box 1 can be discharged more thoroughly and quickly, saving manpower and material resources.

[0044] In some embodiments, in order to prevent deformation and damage of the discharge door 3 during forklift loading and unloading, as shown in FIG. Figure 1 As shown, the collecting device may further include an automatic opening and closing mechanism 5, which includes a driving part 500, a limiting part 510 and a connecting part 520, wherein the driving part 500 may include a driving rod 5001 connected to the collecting box 1 by a rotating shaft and a first elastic member 5002 connected to the driving rod 5001, and the first elastic member 5002 is connected between the positioning insert 4 and the first end of the driving rod 5001. The limiting part 510 includes a vertically extending latch rod 5103 and a second elastic member 5105 connected between the latch rod 5103 and the collecting box 1, and the top of the latch rod 5103 is formed with a bent portion and overlapped with the second end of the driving rod 5001. The connecting part 520 includes a connecting rod 5201, one end of which is connected to the side of the discharge door 3 and the other end of which extends horizontally toward the inside of the accommodating chamber, and a plug hole is formed on the connecting rod 5201 to be plugged with the latch rod 5103.

[0045] The automatic opening and closing mechanism 5 is configured such that when the collection box 1 rotates downward relative to the fork arm, the first elastic member 5002 pulls the driving rod 5001 to disengage the latch rod 5103 from the insertion hole to open the discharge door 3; when the collection box 1 rotates in the opposite direction, the second elastic member 5105 drives the latch rod 5103 to reset to insert the connecting rod 5201 which is reset with the discharge door 3.

[0046] Reference Figure 1In this embodiment, the driving part 500, the limiting part 510 and the connecting part 520 are arranged on the same side, the rod part of the driving rod 5001 is rotatably arranged on the side wall of the collecting box 1, one end of the first elastic member 5002 is connected to the end of the first end of the driving rod 5001, and the other end of the first elastic member 5002 is fixed on the positioning insert 4 (for example, in the case where a pull ring is provided on the positioning insert 4, the first elastic member 5002 can pass through the pull ring and be fixed), and is used to pull the driving rod 5001. The bent portion of the latch rod 5103 overlaps the upper surface of the second end of the driving rod 5001, and at this time, the first elastic member 5002 is basically in a normal state, that is, no elastic force is generated, or almost no elastic force is generated. The second elastic member 5105 is connected to the latch rod 5103 and makes the latch rod 5103 always tend to move vertically downward, and cooperates with the first elastic member 5002 to pull the first end of the driving rod 5001, so that the bending portion and the second end of the driving rod 5001 always maintain abutment. One end of the connecting rod 5201 is fixed to the side of the discharge door 3, and the other end of the connecting rod 5201 extends horizontally to the bottom end of the latch rod 5103. Under the action of the second elastic member 5105, the latch rod 5103 always tends to be inserted into the insertion hole on the connecting rod 5201 corresponding to the bottom of the latch rod 5103, thereby fixing the discharge door 3.

[0047] When in use, the forklift's fork arm tilts downward (specifically at Figure 1In the figure, the structure on the right side moves downward relative to the structure on the left side, and the collection box 1 turns downward by itself under the action of its gravity, with its hinge with the positioning insert 4 as the axis; the driving rod 5001 rotates with the box body, and at this time, since the first end of the driving rod 5001 tends to rise upward, the first elastic member 5002 pulls the first end of the driving rod 5001 downward, and lifts the second end of the driving rod 5001, and at the same time pulls the latch rod 5103 abutting against the upper surface of the second end of the driving rod 5001 out of the socket, so that the latch rod 5103 is separated from the socket, and at this time, the discharge door 3 rotates open under the action of its gravity, and the discharge of the stone coal begins. After the stone coal is discharged, the fork arm of the forklift is lifted upward, and the collection box 1 is reversed. In the process of the collection box 1 turning upward, the driving rod 5001 rotates with the box body, and the pulling force of the first elastic member 5002 on the first end of the driving rod 5001 gradually decreases. Since the second elastic member 5105 makes the latch rod 5103 always have a downward trend, the latch rod 5103 lifted and pulled out by the second end of the driving rod 5001 moves downward under the action of the second elastic member 5105, and the latch rod 5103 is reset. At the same time, the bent portion of the latch rod 5103 presses down the second end of the driving rod 5001 to reset the driving rod 5001. At this time, the connecting rod 5201 is reset along with the discharge door 3, and the bottom end of the latch rod 5103 is inserted into the socket on the connecting rod 5201 to fix the discharge door 3. This arrangement can not only prevent the discharge door 3 from being damaged during the loading and unloading process of the forklift, but also realize automation, reduce labor costs, and improve work efficiency.

[0048] It should be noted here that, in the embodiment described above, the driving rod 5001 can rotate with the collection box 1 under the action of friction (which can be the friction between the driving rod 5001 and the rotating shaft, or the friction between the rotating shaft and the collection box 1), and under the action of the first elastic member 5002 and the second elastic member 5105, the pulling force generated by the elastic members can overcome the friction between the driving rod 5001 and the rotating shaft or between the rotating shaft and the collection box 1, so that the driving rod 5001 can rotate relative to the collection box 1.

[0049] In some embodiments, Figure 1As shown, the limiting part 510 may further include a first mounting seat 5101, a second mounting seat 5102 and a baffle 5104. The first mounting seat 5101 is arranged on the collection box 1, and the second mounting seat 5102 is arranged below the first mounting seat 5101 at intervals. The latch rod 5103 is movably inserted into the first mounting seat 5101 and the second mounting seat 5102; the baffle 5104 is fixed on the latch rod 5103 and is located between the first mounting seat 5101 and the second mounting seat 5102. Preferably, the second elastic member 5105 is a spring sleeved on the latch rod 5103, and the two ends are respectively connected between the first mounting seat 5101 and the baffle 5104. The first mounting seat 5101 and the second mounting seat 5102 are plate-shaped, and the second mounting seat 5102 is arranged directly below the first mounting seat 5101. The centers of the first mounting seat 5101 and the second mounting seat 5102 are provided with mounting holes, and the latch rod 5103 passes through the mounting holes and is movably arranged in the first mounting seat 5101 and the second mounting seat 5102. The spring is coaxially sleeved on the latch rod 5103. In order to ensure the balance of the spring in force and force application, the baffle 5104 is fixedly installed on the latch rod 5103 and is located between the first mounting seat 5101 and the second mounting seat 5102. At this time, one end of the spring abuts on the baffle 5104, and the other end abuts on the bottom surface of the first mounting seat 5101. When in use, the latch rod 5103 is pulled out by lifting the bent portion of the latch rod 5103, and the baffle 5104 moves with the latch rod 5103, and the spring located between the baffle 5104 and the first mounting seat 5101 is compressed. During resetting, since the spring itself has elastic potential energy, when the bent portion of the latch rod 5103 is not subjected to force, the spring returns from a compressed state to an extended state, and the end of the spring abutting against the baffle 5104 exerts an elastic force on the baffle 5104 to move toward the second mounting seat 5102, thereby resetting the latch rod 5103. In this way, through the guiding and stopping functions of the first mounting seat 5101 and the second mounting seat 5102, the reliability of the use of the limiter 510 can be effectively ensured.

[0050] It should be noted that the second elastic member 5105 may also be a section of elastic rubber tube of suitable size, and the elastic rubber tube is coaxially sleeved with the latch rod 5103. The spring and the baffle 5104 may also be integrally formed to simplify the assembly process. Therefore, in other embodiments, it can be selected according to actual needs, and no limitation is made here.

[0051] Optionally, the first elastic member 5002 is a spring wire, which has a certain elastic force, small plastic deformation, and sufficient toughness to withstand the pulling of the collection box 1, thereby improving the stability of the device.

[0052] Two groups of automatic opening and closing mechanisms 5 are provided, and the two groups of automatic opening and closing mechanisms 5 are respectively provided on two opposite sides of the discharge door 3. The two groups of automatic opening and closing mechanisms 5 are provided so that the discharge door 3 is more stable and the force is more evenly applied when opening or closing.

[0053] Reference Figure 1 and Figure 3 The collecting device may further include an anti-slip mechanism 6, which is arranged on a side opposite to the discharge door 3. The anti-slip mechanism 6 includes a shackle 600 and a chain 601. The shackle 600 is arranged on the positioning insert 4, one end of the chain 601 is connected to the shackle 600, and the other end of the chain 601 is connected to the collecting box 1. The shackle 600 is detachably connected to the positioning insert 4, a lug is arranged on the outer wall of the collecting box 1, one end of the chain 601 is connected to the lug, and the other end of the chain 601 is connected to the shackle 600, and the chain 601 has a certain length. When the collecting box 1 is flipped to a preset position, the chain 601 can pull the collecting box 1, so as to prevent the collecting box 1 from being damaged due to excessive flipping.

[0054] like Figure 1 As shown, further, an arcuate transition surface 400 is provided at the end of the hinge between the positioning insert 4 and the collection box 1, and the convex surface of the arcuate transition surface 400 is arranged toward the bottom surface of the collection box 1. When the collection box 1 is turned over, the arcuate transition surface 400 can be used to turn over smoothly, so that the positioning insert 4 can avoid damaging the bottom of the collection box 1.

[0055] Reference Figure 1 , Figure 2 as well as Figure 3 A transparent observation window 101 is also provided on the top of the collection box 1. The observation window 101 is provided to observe the collection of the pebble coal. Further, a quick-opening door is rotatably provided on the top of the collection box 1, and the observation window 101 is provided on the quick-opening door. In this way, when it is observed that the pebble coal collection and filling effect in the collection box 1 is not good, the quick-opening door can be opened and the pebble coal can be evenly distributed in the mobile phone box by manual hoeing, thereby increasing the effective volume of the collection box 1.

[0056] like Figure 1As shown, the second aspect of the present disclosure provides a coal mill assembly, including a coal mill body and a discharge valve 7 connected to the discharge port of the coal mill body, and also including a spring seat 8 and the coal mill stone coal collection device of the first aspect above, wherein the spring seat 8 is arranged between the discharge valve 7 and the collection box 1, one end of the spring seat 8 is connected to the discharge valve 7, and the other end of the spring seat 8 is connected to the collection box 1, and the interior of the spring seat 8 is provided with a discharge channel for connecting the discharge valve 7 and the collection box 1. The spring seat 8 can be a retractable short circuit realized by a spring, and the coal mill stone coal collection device is the collection device described in any of the above embodiments, and its specific structure and effect are not repeated here. The end of the spring seat 8 facing the discharge valve 7 is connected to the discharge valve 7 by a flange, and the end of the spring seat 8 facing the collection box 1 abuts against the feed pipe 2 of the collection box 1. When in use, first connect the spring seat 8 with the discharge valve 7, then use a forklift to align the feed port 100 of the collection box 1 with the spring seat 8, and then the spring seat 8 abuts against the feed port 100 of the collection box 1 through the loading force of the spring; when discharging, the collection box 1 can be directly transported away by a forklift. This arrangement does not require manual operation, reduces manual workload, and improves work efficiency.

[0057] like Figure 1 As shown, a first sealing plate 9 may be provided between the spring seat 8 and the collecting box 1. The first sealing plate 9 abuts against the orifice of the feed pipe 2. A first through hole is provided on the first sealing plate 9. The first through hole is connected to the feed pipe 2, and the orifice diameter of the first through hole is smaller than the orifice diameter of the feed pipe 2. The first sealing plate 9 is provided in a plate shape. A first through hole is provided on the first sealing plate 9. The orifice diameter of the first through hole is equal to the caliber of the discharge channel of the spring seat 8, but smaller than the orifice diameter of the feed pipe 2. When in use, when the orifice of the feed pipe 2 of the collecting box 1 is aligned with the sealing plate, the sealing plate is pressed against the orifice of the feed pipe 2 of the collecting box 1 by the loading force of the spring, so as to achieve the seal between the stone coal discharge valve 7 and the collecting box 1. This arrangement can not only avoid the accumulation of gravel at the connection between the spring seat 8 and the feed pipe 2 during the collection of gravel, causing blockage of the pipeline, but also allow the pipe mouth of the feed pipe 2 to have a certain tolerance when aligning with the sealing plate, which can further improve work efficiency, and can seal the pipe mouth to avoid environmental pollution caused by dust leakage.

[0058] like Figure 1 As shown, optionally, a second sealing plate 10 may be provided between the discharge valve 7 and the spring seat 8, and a second through hole is provided on the second sealing plate 10, and the second sealing plate 10 is used to seal the connection between the discharge valve 7 and the spring seat 8. The second sealing plate 10 is clamped at the connection between the discharge valve 7 and the spring seat 8 through the flange connection of the discharge valve 7 and the spring seat 8, and is used to seal the gap at the connection between the discharge valve 7 and the spring seat 8, which can further prevent dust leakage from causing pollution to the environment.

[0059] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0060] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0061] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A coal mill stone coal collection device, characterized in that: include A collecting box, wherein the collecting box is formed with a closed accommodating cavity, and a feeding port communicating with the accommodating cavity is opened on the top of the collecting box; A feed pipe, the feed pipe is arranged at the top of the collecting box, one end of the feed pipe is connected to the feed port, and the other end of the feed pipe is used to connect to the discharge port of the coal mill body; as well as a discharge door, the discharge door being rotatably connected to one side of the collection box; The top of the discharge door is rotatably connected to the collection box; The bottom of the collection box is also provided with a positioning insert tube for cooperating with the fork arm of the forklift, and the axis extension direction of the positioning insert tube is arranged perpendicular to the discharge door, so that the discharge door is opened when the fork arm of the forklift drives the positioning insert tube to rotate downward; One end of the positioning cannula close to the discharge door is hinged at the middle position of the bottom of the collection box; The collecting device further comprises an automatic opening and closing mechanism, which comprises a driving part, a limiting part and a connecting part. Wherein, the driving part comprises a driving rod connected to the collection box in an up-and-down manner through a rotating shaft and a first elastic member connected to the driving rod, and the first elastic member is connected between the positioning cannula and the first end of the driving rod; The limiting part includes a vertically extending latch rod and a second elastic member connected between the latch rod and the collection box, and a bent portion is formed on the top of the latch rod and overlapped on the second end of the driving rod; The connecting portion includes a connecting rod with one end connected to the side of the discharge door and the other end extending horizontally toward the interior of the accommodating cavity, and a socket for plugging and matching with the latch rod is formed on the connecting rod. The automatic opening and closing mechanism is configured such that when the collection box rotates downward relative to the fork arm, the first elastic member pulls the driving rod to disengage the latch rod from the insertion hole to open the discharge door; when the collection box rotates in the opposite direction, the second elastic member drives the latch rod to reset to insert the connecting rod that is reset with the discharge door.

2. The coal mill stone coal collecting device according to claim 1, characterized in that: The limiting part also includes a first mounting seat, a second mounting seat and a baffle. The first mounting seat is arranged on the collection box, the second mounting seat is arranged below the first mounting seat with a spacing, and the latch rod is movably inserted into the first mounting seat and the second mounting seat; The baffle is fixed on the latch rod and is located between the first mounting seat and the second mounting seat. The second elastic member is a spring sleeved on the latch rod, and two ends of the second elastic member are respectively connected between the first mounting seat and the baffle.

3. The coal mill stone coal collecting device according to claim 1, characterized in that: The first elastic member is a spring wire.

4. The coal mill pebble coal collecting device according to any one of claims 1 to 3, characterized in that: The automatic opening and closing mechanisms are provided in two groups, and the two groups of the automatic opening and closing mechanisms are respectively arranged on two opposite sides of the discharge door.

5. The coal mill stone coal collecting device according to claim 1, characterized in that: The collecting device also includes an anti-slip mechanism, which is arranged on a side opposite to the discharge door. The anti-slip mechanism includes a shackle and a chain. The shackle is arranged on the positioning insert, one end of the chain is connected to the shackle, and the other end of the chain is connected to the collecting box.

6. The coal mill stone coal collecting device according to claim 1, characterized in that: An arc-shaped transition surface is provided at the end of the hinged part between the positioning insert and the collection box, and the convex surface of the arc-shaped transition surface is arranged toward the bottom surface of the collection box.

7. The coal mill stone coal collecting device according to claim 1, characterized in that: The top of the collecting box is also provided with a transparent observation window.

8. A coal mill assembly, comprising a coal mill body and a discharge valve connected to a discharge port of the coal mill body, characterized in that: It also includes a spring seat and a coal mill stone coal collection device as described in any one of claims 1 to 7, wherein the spring seat is arranged between the discharge valve and the collection box, one end of the spring seat is connected to the discharge valve, and the other end of the spring seat is connected to the collection box, and the interior of the spring seat is provided with a discharge channel for connecting the discharge valve and the collection box.

9. The coal mill assembly according to claim 8, characterized in that: A first sealing plate is provided between the spring seat and the collecting box, the first sealing plate abuts against the pipe mouth of the feed pipe, a first through hole is opened on the first sealing plate, the first through hole is connected to the feed pipe, and the orifice diameter of the first through hole is smaller than the pipe mouth diameter of the feed pipe.

10. The coal mill assembly according to claim 8 or 9, characterized in that: A second sealing plate is provided between the discharge valve and the spring seat, a second through hole is provided on the second sealing plate, and the second sealing plate is used to seal the connection between the discharge valve and the spring seat.

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