Quantity-controlled discharging device for coal bunker

Abstract

The utility model relates to a coal bunker quantity control bunker discharging device which comprises a coal bunker and a bunker discharging opening, the upper end of the bunker discharging opening is connected with a coal bunker flange, a belt type coal feeder is installed at the bottom of the bunker discharging opening, water potential sensors are arranged on the upper side and the lower side of a connecting flange of the bunker discharging opening and the coal bunker, and detection heads of the water potential sensors face the interior of the bunker discharging opening. The tail end is connected with the controller through a data line; the upper end of the spillplate is rotationally connected with the lower end of the left side plate, a telescopic oil cylinder is mounted on the back of the spillplate, and the lower end of the spillplate is driven by the telescopic oil cylinder to be close to or far away from the lower end of the right side plate; a slide rheostat is installed on the telescopic oil cylinder and connected with the controller through a data line. According to the scheme, quantitative transferring of raw coal in a bunker can be stably achieved for a long time, through cooperation of the water potential sensor and the coal baffle, the influence of water coal on bunker transferring can be automatically treated, and setting control over the amount of transferred raw coal can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mine machinery, specifically relates to a coal bunker quantity control and releasing device. BACKGROUND

[0002] The coal mining mine releases coal and adopts the belt type coal feeder, and the belt type coal feeder includes the conveying belt, and the conveying belt is externally equipped with the shell, the top of the shell is equipped with the releasing port at the tail position of the conveying belt, and the shell side is opened for discharging at the head of the conveying belt, and the conveying belt transfers the coal to the transfer rubber belt machine. In the coal mine production process, the coal output is unstable, and the coal bunker is usually set up for temporary storage to buffer the flow.

[0003] 1) Because the geographical environment of the coal mine is special, water needs to be explored and released in the coal mining process, and the mined coal needs to be atomized and dusted or hydraulically mined, so the water content of the mined coal is unstable, and if the water content of the raw coal is normal, it is powder, the conveying belt stops when the feeding is stopped, the coal bunker and the releasing port continuously discharge, the coal material is accumulated at the tail end of the conveying belt, and the accumulated material is discharged when the next start; if the water content of the raw coal is large to reach the state of mud flow, even if the conveying belt stops, the material will still flow along the conveying belt, so that the material discharge cannot be controlled;

[0004] 2) The conveying belt has only a small groove depth, and when the water and coal amount is large, the coal is easy to overflow, which brings great harm to the safety of the equipment;

[0005] 3) The coal mine needs to measure the production quantity, and the measuring scale is usually set at the belt type coal feeder, the flowability of the water and coal affects the accuracy of the measurement, and the quantity of the mine is distorted. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of releasing devices for solving the problems in prior art, which can reasonably control material quantity when the water content of raw coal is large, so as to ensure the safety of equipment.

[0007] The utility model solves the problems by adopting the technical scheme of:

[0008] A coal bunker quantity control and discharge device, comprising a coal bunker and a discharge port, the upper end of the discharge port is connected with the flange of the coal bunker, a belt-type coal feeder is installed at the bottom of the discharge port, the upper end of the discharge port is composed of a front side plate, a rear side plate, a left side plate and a right side plate, the lower end of the front side plate, the rear side plate and the right side plate extends to the tail position of the belt-type coal feeder, the lower end of the rear side plate is fixedly connected with a reinforcing beam, the two ends of the reinforcing beam are fixedly connected with the front side plate and the rear side plate, the side part of the front side plate and the rear side plate is connected with a material blocking plate, the material blocking plate extends from the tail of the belt-type coal feeder to the head of the belt-type coal feeder, the right side plate is arranged obliquely, the driving device of the belt-type coal feeder is connected with a controller, and the device is further provided with:

[0009] A water potential sensor is arranged on the upper side and / or the lower side of the connecting flange of the discharge port and the coal bunker, the detection head of the water potential sensor faces the inside of the discharge port, and the water potential sensor is connected with the controller through a data line;

[0010] A coal blocking plate is arranged in the inside of the discharge port, the upper end of the coal blocking plate is provided with a rotating shaft, the rotating shaft is rotatably connected with the lower end of the left side plate, an extension oil cylinder is installed at the back of the coal blocking plate, and the lower end of the coal blocking plate is driven by the extension oil cylinder to approach or move away from the lower end of the right side plate;

[0011] A sliding rheostat is installed on the extension oil cylinder, the sliding rheostat is connected with the controller through a data line, and the controller is connected with the extension oil cylinder through a control line.

[0012] Compared with the prior art, the device has the beneficial effects that:

[0013] The device can stably achieve the discharge and quantitative transfer of raw coal for a long time through the coal blocking plate, can automatically process the influence of water and coal on the discharge through the cooperation of the water potential sensor and the coal blocking plate, can realize the setting control of the transferred raw coal quantity, has high automation degree and reduces manual operation.

[0014] As preferred, the further technical scheme of the above structure is:

[0015] The water potential sensor is arranged on the front side plate, the rear side plate, the left side plate and the right side plate, and a protective cover is arranged on the upper side of the water potential sensor on the inner wall of the discharge port, 10cm to 15cm away from the inner wall.

[0016] A first hinged seat is fixedly arranged at the back of the coal blocking plate, the piston end of the extension oil cylinder is movably connected with the first hinged seat through a pin shaft, the fixed end of the extension oil cylinder is movably connected with a second hinged seat through a pin shaft, and the second hinged seat is fixedly arranged on the frame beam of the discharge device on the side of the material blocking plate.

[0017] The coal blocking plate has a triangular structure with a wide upper end and a narrow lower end, is provided with a hollow hole in the inside, is provided with a notch on the two sides of the upper end, and is provided with a rotating shaft in the notch, a C-shaped shaft sleeve is fixedly arranged on the side of the reinforcing beam at the lower end of the left side plate, and the rotating shaft is arranged in the C-shaped shaft sleeve.

[0018] The side face lower end of the coal blocking plate close to the right side plate is provided with a groove, and the lower end of the right side plate is provided with a limiting protruding platform which is matched with the groove.

[0019] The lower edge of the coal blocking plate is further provided with a brush which is a fiber brush with certain resistance to raw coal particles.

[0020] The belt type coal feeder comprises a belt, a permanent magnetic driving roller located at a machine head position and a passive roller located at a machine tail position, the permanent magnetic driving roller is connected with a frequency converter, and further comprises a belt scale, the belt scale is connected with a controller through a data line, and the controller is connected with the frequency converter through a control line. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic view of the utility model;

[0022] Figure 2 It is the structure schematic view of the warehouse outlet of the utility model;

[0023] Figure 3 It is the water potential sensor arrangement schematic view of the coal bunker bottom of the utility model;

[0024] Figure 4 It is the water potential sensor protection cover arrangement schematic view of the utility model;

[0025] Figure 5 It is the coal blocking plate embodiment structure schematic view of the utility model;

[0026] Figure 6 It is the improved embodiment view of the coal blocking plate of the utility model;

[0027] Figure 7 It is the telescopic oil cylinder structure schematic view of the utility model.

[0028] In the drawing: 1, coal bunker; 2, warehouse outlet; 3, belt type feeder; 4, water potential sensor; 5, coal blocking plate; 6, telescopic oil cylinder; 7, sliding rheostat; 8, frame beam; 9, controller; 10, pump station reversing valve; 11, belt scale; 12, permanent magnetic driving roller; 13, belt; 14, material blocking plate; 15, reinforcing beam; 16, protection cover; 17, rotating shaft; 18, groove; 19, limiting protruding platform; 20, brush; 21, first hinged seat; 22, second hinged seat; 201, front side plate; 202, rear side plate; 203, left side plate; 204, right side plate; 501, notch; 502, hollow hole. DETAILED DESCRIPTION

[0029] The utility model will be further described in connection with the embodiments, and the purpose is only to better understand the content of the utility model, therefore, the example does not limit the protection scope of the utility model.

[0030] Coal mine, water coal is inevitable, its serious harm to the system, mainly due to the discharge port cannot be controlled, the existing technology in the discharge port of the silo setting unloading control mechanism is a common means, coal bunker 1 is the temporary storage of raw coal bunker, the existing technology is usually set at the bottom of coal bunker 1 vibration feeder, but due to the scheme in the discharge port 2 needs to be connected with coal bunker 1, vibration will affect the interface of the discharge port, therefore not applicable; Coal bunker 1 bottom mounted gate also affect the interface of the discharge port and the control of the material quantity of the belt feeder discharge port has hysteresis, the use effect is not good.

[0031] Referring to Figures 1 to 7 The coal bunker quantity control discharging device provided by the utility model, including coal bunker 1 and discharge port 2, the upper end of discharge port 2 is connected with the flange of coal bunker 1, the bottom of discharge port 2 is provided with a belt coal feeder 3, the upper end of discharge port 2 is composed of a front side plate 201, a rear side plate 202, a left side plate 203 and a right side plate 204, the lower end of the front side plate 201, the rear side plate 202 and the right side plate 204 extends to the tail position of the belt coal feeder 3, the lower end of the rear side plate 202 is fixedly connected with a reinforcing beam 15, and the two ends of the reinforcing beam 15 are fixedly connected with the front side plate 201 and the rear side plate 202; the side part of the front side plate 201 and the rear side plate 202 is connected with a material blocking plate 14, the material blocking plate 14 extends from the tail of the belt coal feeder 3 to the head of the belt coal feeder 3, and the right side plate 204 is arranged obliquely; the driving device of the belt coal feeder 3 is connected with a controller 9.

[0032] A water potential sensor 4 and a coal blocking plate 5 are further arranged.

[0033] The water potential sensor 4 is arranged on the upper side and / or the lower side of the connecting flange between the discharge port 2 and the coal bunker 1, the detection head of the water potential sensor 4 faces the inside of the discharge port 2, and the water potential sensor 4 is connected with the controller 9 through a data line, so as to send the raw coal moisture content data to the controller 9.

[0034] The coal blocking plate 5 is arranged in the inside of the discharge port 2, the upper end of the coal blocking plate 5 is provided with a rotating shaft 17, the rotating shaft 17 is rotatably connected with the lower end of the left side plate 203, the back of the coal blocking plate 5 is provided with a telescopic oil cylinder 6, the coal blocking plate 5 is driven by the telescopic oil cylinder 6 to approach or move away from the lower end of the right side plate 204, the telescopic oil cylinder 6 is provided with a sliding rheostat 7, the sliding rheostat 7 is connected with the controller 9 through a data line, so that the controller 9 sends the telescopic stroke data of the telescopic oil cylinder 6; the controller 9 is connected with the telescopic oil cylinder 6 through a control line, so as to control the telescopic oil cylinder 6 according to the value of the water potential sensor 4.

[0035] The utility model discloses a water potential sensor 4 real -time detection of raw coal moisture content, then send the moisture content value to controller 9, newly established coal baffle 5, according to the inside structure of equipment obtains the correlation of telescopic cylinder 6 telescopic stroke and coal baffle 5 opening degree value and contrast table, sliding rheostat 7 sends the telescopic stroke of telescopic cylinder 6 to controller 9, and controller 9 judges the opening degree value of current coal baffle 5, and controller 9 adjusts the action of telescopic cylinder 6 according to " moisture content " and " opening degree value ".

[0036] The installation of the water potential sensor 4 needs to open a hole on the wall of the coal bunker 1 and the discharge opening 2, the detection end faces the inside of the wall, and the transmission line end remains on the outside of the wall. Since the dryness and humidity of the raw coal in the coal bunker 1 is not necessarily uniform, in order to timely and accurately find the water-coal condition, the water potential sensor 4 is arranged on the front side plate 201, the rear side plate 202, the left side plate 203 and the right side plate 204. In order to avoid damage to the water potential sensor 4 caused by the impact of the raw coal, optionally, a protective cover 16 is arranged on the water potential sensor 4 on the inner wall of the discharge opening 2, 10-15 cm from the top of the water potential sensor 4. The protective cover 16 blocks the passage of materials with large potential energy and large particles. The spacing of 10-15 cm enables small particles to move to the lower side of the protective cover 16 under the extrusion of the material and thus come into contact with the water potential sensor 4. In the case that there are water potential sensors 4 on each side wall, the water-coal condition can be ensured to be found in time.

[0037] The coal baffle 5 rotates in a fan shape under the control of the telescopic cylinder 6. Specifically, the coal baffle 5 is fixed with a first hinged seat 21 on the back, the first hinged seat 21 is movably connected with the piston end of the telescopic cylinder 6 through a pin shaft, the fixed end of the telescopic cylinder 6 is movably connected with a second hinged seat 22 through a pin shaft, and the second hinged seat 22 is fixed on the frame beam 8 of the discharge device above the baffle plate 14. The telescopic cylinder 6 is connected with a pump station reversing valve 10 through an oil pipe, the pump station reversing valve 10 is connected with the controller 9 through a control line, and the pump station reversing valve 10 is used to realize the conversion of the telescopic action of the telescopic cylinder 6.

[0038] The top of the baffle plate 14 on both sides is supported and fixed through a reinforcing beam 15 to increase stability. The reinforcing beam 15 at the lower end of the left side plate 203 can be a general channel steel or a round steel. The upper end of the coal baffle 5 is optionally rotatable with a round steel as the shaft. Alternatively, the coal baffle 5 has a triangular structure with a wider upper end and a narrower lower end, is provided with a hollow hole 502 in the inside, and is provided with notches 501 on both sides of the upper end, a rotating shaft 17 is arranged in the notches 501, and a C-shaped shaft sleeve is fixedly connected to the side of the reinforcing beam 15 at the lower end of the left side plate 203, and the rotating shaft 17 is installed in the C-shaped shaft sleeve. The embodiment is convenient to install and replace.

[0039] Optionally, the coal baffle 5 is provided with a groove 18 near the lower end of the side surface of the right side plate 204, and the right side plate 204 is provided with a limiting protrusion 19 at the lower end, which is matched with the groove 18; when it is needed to close the coal baffle 5, the machine tail is relatively clean, and the material particles are less, the limiting protrusion 19 can be embedded in the groove 18, so as to be closed tightly, which can not only stop the subsequent pulverized coal, but also stop the water coal.

[0040] Optionally, the lower edge of the coal baffle 5 is also provided with a brush 20, which is a fiber brush with a certain resistance to raw coal particles; when there is residual material in the machine tail and there are particle materials, the brush 20 can push back some raw coal particles in the opposite direction when the coal baffle 5 is closed, and block the particles from moving with the belt 13; this example can effectively intercept the water coal when the particle limiting protrusion 19 and the groove 18 cannot be closed, and the control effect of the discharge amount is better.

[0041] The belt type coal feeder 3 comprises a belt 13, a permanent magnet driving roller 12 located at the machine head position and a passive roller located at the machine tail position, the permanent magnet driving roller 12 is connected with a frequency converter, and further comprises a metering belt scale 11, the metering belt scale 11 is connected with a controller 9 through a data line, and the controller 9 is connected with the frequency converter through a control line; based on the adjustable discharge amount of the discharge port 2, in order to better control the discharge amount of the device, the transmission speed of the belt can be controlled through the frequency converter, so that the equipment production can be more reasonably coordinated.

[0042] The coal baffle can stably achieve the discharge quantitative transfer of raw coal for a long time, the water potential sensor and the coal baffle cooperate, can automatically process the influence of water coal on the discharge, can realize the setting control of the raw coal amount, has high automation degree, and reduces manual operation; in general, the scheme can realize the automatic control of the coal discharge control transfer of the coal discharge port, and can solve the automatic discharge quantitative transfer of water coal.

[0043] The above only describes the preferred and feasible embodiments of the utility model, and does not limit the scope of the utility model, and equivalent changes made by applying the contents of the utility model specification and its drawings are included in the scope of the utility model.

Claims

1. A coal bunker quantity control discharging device, comprising a coal bunker (1) and a discharge port (2), the upper end of the discharge port (2) is connected with the flange of the coal bunker (1), the bottom of the discharge port (2) is provided with a belt coal feeder (3), the upper end of the discharge port (2) is composed of a front side plate (201), a rear side plate (202), a left side plate (203) and a right side plate (204), the lower end of the front side plate (201), the rear side plate (202) and the right side plate (204) extends to the tail position of the belt coal feeder (3), the lower end of the rear side plate (202) is fixedly connected with a reinforcing beam (15), the two ends of the reinforcing beam (15) are fixedly connected with the front side plate (201) and the rear side plate (202); the side of the front side plate (201) and the rear side plate (202) is connected with a material blocking plate (14), the material blocking plate (14) extends from the tail of the belt coal feeder (3) to the head of the belt coal feeder (3), the right side plate (204) is arranged obliquely, the driving device of the belt coal feeder (3) is connected with a controller (9), characterized in that, Also provided are: A water potential sensor (4) is arranged on the upper side and / or lower side of the connecting flange between the discharge port (2) and the coal bunker (1), the detection head of the water potential sensor (4) faces the inside of the discharge port (2), and the water potential sensor (4) is connected to the controller (9) through a data line; A coal blocking plate (5) is arranged inside the discharge port (2), the upper end of the coal blocking plate (5) is provided with a rotating shaft (17), the rotating shaft (17) is rotatably connected to the lower end of the left side plate (203), the back of the coal blocking plate (5) is provided with an extension oil cylinder (6), and the lower end of the coal blocking plate (5) is driven by the extension oil cylinder (6) to approach or move away from the lower end of the right side plate (204); A sliding rheostat (7) is arranged on the extension oil cylinder (6), and the sliding rheostat (7) is connected to the controller (9) through a data line; the controller (9) is connected to the extension oil cylinder (6) through a control line.

2. The coal bunker quantity control and releasing device according to claim 1, characterized in that: The water potential sensor (4) is arranged on the front side plate (201), the rear side plate (202), the left side plate (203), and the right side plate (204), and the water potential sensor (4) is provided with a protective cover (16) 10-15 cm above the inner wall of the discharge port (2).

3. The coal bunker quantity control and releasing device according to claim 1, characterized in that: The back of the coal blocking plate (5) is fixed with a first hinged seat (21), the piston end of the extension oil cylinder (6) is movably connected to the first hinged seat (21) through a pin shaft, the fixed end of the extension oil cylinder (6) is movably connected to a second hinged seat (22) through a pin shaft, and the second hinged seat (22) is fixed to the frame beam (8) on the side of the discharging device which is away from the blocking plate (14).

4. The coal bunker metering and releasing device according to claim 1, characterized in that: The coal blocking plate (5) has a triangular structure with a wider upper end and a narrower lower end, and is provided with a hollow hole (502) in the inside, notches (501) are arranged on both sides of the upper end of the coal blocking plate (5), a rotating shaft (17) is arranged in the notches (501), a C-shaped shaft sleeve is fixedly connected to the side of the reinforced beam (15) at the lower end of the left side plate (203), and the rotating shaft (17) is arranged in the C-shaped shaft sleeve.

5. The coal bin controlled release device according to claim 1, characterized in that: The side surface of the lower end of the coal blocking plate (5) which approaches the right side plate (204) is provided with a groove (18), and the lower end of the right side plate (204) is provided with a limiting protruding platform (19), and the limiting protruding platform (19) is matched with the groove (18).

6. The coal bin controlled release device according to claim 1, characterized in that: The lower edge of the coal blocking plate (5) is further provided with a brush (20), and the brush (20) is a fiber brush with a certain resistance to raw coal particles.

7. The coal bin controlled release device according to claim 1, characterized in that: The belt type coal feeder (3) comprises a belt, a permanent magnet driving roller (12) at the machine head position and a passive roller at the machine tail position, the permanent magnet driving roller (12) is connected with a frequency converter, and further comprises a metering belt scale (11), the belt scale is connected to the controller (9) through a data line, and the controller (9) is connected to the frequency converter through a control line.

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