KR100295396B1 - Goetan automatic sorting device - Google Patents

Abstract

The present invention relates to a lump coal automatic sorting device, by applying a low voltage to the lump coal of the 20-200mm particle diameter mined from the coal mine to analyze the current flowing through the lump coal to automatically sort the coal coal by high-quality coal and low quality coal coal by calories. The pulverized coal feeder 10 and the conveying groove 23 are inclined a plurality of vibratory feeders 22 in which the lump coal is mined by the technical means is supplied from the hopper 12 through a fixed-quantity feeder 14 in a predetermined amount. Is the vibratory motor 26 is vibrated by the pulverized coal transfer unit 20 to transfer the pulverized coal supplied from the pulverized coal supply unit 10 at a constant speed, a plurality of sorting plate 34 is applied to the DC voltage and the corresponding pulverized coal detection When the coal is passed through the inclined chute 32 at a constant speed between the means 40 and a current of a predetermined level or more is detected, the sorting plate 34 to which the solenoid 38 is connected is operated to open a high calorie coal. It characterized in that it comprises a lump coal detection unit 30 to discharge by automatically sorting the lump coal of low heat.

Description

Goetan automatic sorting device

The present invention relates to a lump coal automatic sorting device that can automatically sort lump coal by calorie, and more particularly, energizes the lump coal of a wide range of sizes having a particle diameter of 20 to 200 mm mined from coal mines by means of lump coal detection means using low voltage. The present invention relates to a lump coal automatic sorting device which can accurately select high-quality coal and low-quality waste coal by calorie by analyzing the average value calculated by detecting the current amount flowing through the lump coal multiple times.

In general, raw coal mined from coal mines is mined with high-calorie coal with economical efficiency and low-calorie waste coal with little or no economic efficiency, and pumice belonging to impurities. Work is required.

On the other hand, coal is composed of carbon, and the calorie grade of the coal is determined according to the carbon content. When the current is largely energized when the coal is energized, the caloric value of the coal is high when the amount of current is high. It is a trend that lump coal sorting device that can sort the coal and waste coal of a certain level according to the carbon content of the lump coal using electric conduction difference is being developed.

As described above, a lump coal sorting device for sorting calories of lump coal using electrical conductivity was introduced in Korean Patent Application Publication No. 90-8929. This was not exercised.

In other words, the conventional coal coal sorting device is configured to determine whether the coal is coal or waste coal according to only one conduction state when electric conductivity is detected by flowing an electric current. Even when it is detected through the sensor rod of the coal charcoal detector, there is a structural problem that the exact calorie detection of the coal charcoal is not properly performed as the current supplied through the sensor is detected as a certain level and classified and transferred into pure carbon. .

In addition, in the conventional lump coal sorting device, several lumps of coal may be placed on a plate-shaped plate at the same time. In this case, the state of all the coals is determined according to the electrical conductivity of one of the lumps. If it is determined as one or waste coal, there was a problem that the rest can also be judged as waste coal unconditionally.

Therefore, the present invention was invented to solve the structural problem of the conventional coal coal sorting device, which is composed of a plurality of lanes of coal pellets of 20-200 mm particle size mined from coal mines, and each lane is a vibration feeder composed of "V" type grooves. After spreading and unfolding in a flat manner without using each other, after applying the low voltage to each coal coal, it detects the amount of energized current, and automatically selects the coal by the quantity of heat corresponding to the amount of current. The purpose is to provide a device.

1 is a block diagram of the automatic coal sorting apparatus according to the present invention.

Figure 2 is a perspective view of the vibrating feeder of the lump coal conveying unit installed in the lump coal automatic screening device of the present invention.

3 is a sorting plate operation structure diagram of the coal-cob detecting unit installed in the automatic coal-coating system of the present invention.

Figure 4 is a structure diagram of the attachment chain is installed in the lump coal detection unit of the lump coal automatic detection device according to the present invention applied to the coal lump detection means.

5 is a rotational brush structure installed in the coal-tank detection unit of the coal-tank automatic selection device according to the present invention applied to the coal-tank detection means.

6 is an operating system diagram automatically controlled by a control panel in accordance with the carbon content of the coal briquettes detected by the coal coal detecting unit of the present invention.

<Description of the symbols for the main parts of the drawings>

10: lump coal supply unit 12: hopper

14: fixed-quantity feeder 20: lump coal transfer unit

22: vibrating feeder 23: transfer groove

24: speed control piece 26: vibration motor

30: mass detection unit 32: the schut

33: coal discharge outlet 34: selection plate

35: copper plate 36: bakelite plate

37: power cable 38: solenoid

40: sensation detection means 42: attachment chain

44: rotating brush 60: control panel

In order to achieve the above object, the present invention provides an automatic pulverized coal sorting device comprising a pulverized coal feeder and a plurality of conveying grooves inclined. When the feeder is vibrated by the vibration motor, the crushed coal is fed between the crushed coal supply unit and the crushed coal transfer unit for transferring at a constant speed, and a plurality of sorting plates to which a DC voltage is applied, and the lump coal is inclined between the lump coal detecting means. If a current of a certain level or more is detected according to the carbon content of the coal briquettes passing through the wort at a constant speed, the sorting plate to which the solenoid is connected opens the spout coal outlet, and the sensed coal is selectively discharged through the coal outlet. It includes a lump coal detection unit.

The coalescence detection means is provided with a rotation chain attachment chain or a rotary brush applied at a predetermined interval on the sorting plate of the chute so that the contact area with the coal coalesiness together with the sorting plate is increased.

In addition, the sorting plate is formed of a copper plate and a bakelite plate, the upper surface and the lower surface connected to the power cable from the control panel, the upper end is hinged to the coal discharge outlet penetrated through the chute, the solenoid It is configured to be opened and closed automatically by.

And, the vibration feeder is characterized in that each of the conveying groove is formed in the groove to the V-shaped groove, the speed adjusting piece is installed at the lower end of each of the conveying groove so that the speed of the lump coal conveyed to the chute is constantly adjusted.

Hereinafter, preferred embodiments of the present invention by referring to the accompanying drawings in detail as follows.

1 is a view illustrating a structure of an automatic coal sorting device according to the present invention, in which a coal of about 20-200 mm particle size mined from a coal mine is transferred to the coal sorting device through a transfer line and connected to a control panel 60 ( 30) If current is applied to the lumps when passing through, the energized current flowing through each lump is detected, and if it is determined that the detected current is higher than the reference current, the coal is judged to be high-heat lumps of coal and the coal is low calorie lumps below the reference current. It should be separated automatically so that it can be sorted out by the corresponding discharge line.

The lump coal sorting device transfers the lump coal supplied from the lump coal supply unit 10 while the mined coal is supplied in a fixed amount through the quantitative feeder 14 and the vibration feeder 22 is vibrated. According to the carbon content of the coal briquettes passing through the coal briquettes at a constant speed between the coal transfer unit 20, the sorting plate 34 and the coal detection unit 40 electrically connected to the control panel 60 is a current of a predetermined level or more When detected, it is composed of a lump coal detection unit 30 for sorting and discharging high-calorie coal by low-calorie coal through the coal discharge port 33.

In addition, the lump coal supply unit 10 is formed of a structure capable of supplying a lump of coal to a predetermined amount to the hopper 12 of the mined lump coal inlet and temporarily stored, and the vibration feeder 22 of the lump coal transport unit 20. A plurality of fixed-quantity feeders 14 operated by a DC motor (not shown) are connected to the hopper 12 so that the lump coal of the 20-200 mm particle diameter, which is a gemstone mined from the coal mine, is fed at a constant speed. To (20).

And, as shown in Figure 2, the pulverized coal transfer unit 20, the vibration groove feeder 23 of the V-shaped grooves are formed in the longitudinal direction in the longitudinal direction, the transfer direction of the lump coal, and the vibration motor 26 disposed on the bottom side 22 is installed in a structure that is connected to the corresponding fixed-quantity supply 14 of the lump coal supply unit 10.

At the lower end of each of the inclined feed grooves 23 of the vibration feeder 22, a chuck is transported by a speed adjusting piece 24 installed through a connecting ring (not shown). The vibration feeder 22 which is to be sequentially transported drop by one to the 32, and the lower support 28 is installed through the intermediate vibration spring 27 to be vibrated by the driving force of the vibration motor 26. To buffer the

Accordingly, the lump coal conveying unit 20 spreads the lump coal supplied from the lump coal supply unit 10 evenly to the vibrating feeder 22 without overlapping by the vibration, and then transfers the lump coal detecting unit 30 at a constant speed. Do it.

In addition, the lump coal detection unit 30 is installed in the middle of the chute 32 while the lump coal conveyed from the lump coal conveying unit 20 passes through the chute 32 at a constant speed, so that DC voltage is energized. The plate 34 and the lump coal detection means 40 are configured to detect the current and automatically sort the lump coal into high-calorie coal and low-calorie waste coal.

The chute 32 has about 15 partition plates (not shown) protruding to correspond to each of the conveying grooves 23 of the coal transfer portion 20 so that the coals are separated by the sorting plate 34 and the coal transfer detection means. It is partitioned so as to pass between the 40, the sorting plate 34 and the coal-fire detection means 40 is installed in the middle portion of the high-calorie coal selected by the low-calorie waste coal and the passing direction to be discharged by dropping differently The outlet 33 is formed through.

3 is a view illustrating the operation of the sorting plate of the lump coal detecting unit 30, and FIGS. 4 and 5 are attached to the lump coal detecting unit 30 and rotated with the attachment chain 42 used as the lump coal detecting unit 40. FIG. The installation structure of the brush 44 is shown.

As shown in the figure, the sorting plate 34 is a copper plate 35 having a high wear resistance and the corrosion resistance and insulation properties of the upper surface and the lower surface to which the power cable 37 from the control panel 60 is connected, respectively. The control panel is formed of a superior bakelite plate 36, the upper end of which is hinged to be opened and closed by the shot discharge outlet 33 penetrated through the chute 32 to apply a DC voltage of 10V via the power cable 37 ( At the same time as the constant voltage supply of the 60, the solenoid 38 and the upper end, which are operated by the control signal of the control panel 60 is connected and configured to be automatically opened and closed according to the detected current value of the coal briquettes.

The solenoid 38 is connected to the relay driving part of the control panel 60 and the operation of the solenoid 38 is controlled in accordance with the detection current value of the corresponding coal coal sensed by the sorting plate 34 and the ingot coal detecting means 40. It is configured to open and close by turning, and is also fixed to the chute 32 via the support rib 39.

As shown in FIG. 4, the lump coal detection means 40 through which current flows through the lump coal passed along with the sorting plate 34 can increase the contact area with the lump coal together with the sorting plate 34. Rotating chain attachment chain 42 is installed at regular intervals on the sorting plate 34, or as shown in FIG. 5, the rotating chain rotating brush 44 is installed at regular intervals on the sorting plate 34. This is a structure in which a lump coal having an irregular irregular surface is instantaneously rotated in contact with the attachment chain 42 or the rotating brush 44 which is a rotating body, thereby increasing the contact area as much as possible.

The attachment chain 42 is rotatably installed on both sides of the sprockets 43 so that the coal can pass smoothly while passing therethrough, and the rotating brush 44 is assembled with protection plates 46 on both sides and a driving motor ( (Not shown) is rotatably installed at respective intervals.

As described above with reference to FIG. 6, which is an operation circuit of the control panel 60 for controlling the operation of the sorting plate 34 and the solenoid 38, the Goe coal automatic sorting apparatus of the present invention configured as described above is approximately 20- It is automatically supplied according to the carbon content of the relevant coal which is detected while being passed through the coal-fire detection unit 30 through the coal-fire supply unit 10 and fed at a constant speed by the coal-carrying unit 20 through a transfer line with a 200mm particle size coal. High calorie coal and low calorie waste coal are selected.

That is, the pulverized coal is sequentially supplied to the vibrating feeder 22 of the lump coal conveying part by a predetermined amount sequentially through the hopper 12 and the quantitative feeder 14 of the lumped coal feeder, and vibrated by the vibrating motor 26. As the coal briquettes are vibrated through a plurality of transfer grooves 23 concave in a), the coal briquettes are conveyed at a constant speed in a state in which the coal briquettes are flattened one by one. It is dropped and transported to the inclined chute 32 while being adjusted.

In addition, a goblet is passed between the sorting plate 34 and the ingot detection means 40 installed in the plurality of penetrating discharge outlets 33 that pass through the chute 32. The sensing current is energized to the sorting plate 34 and the lump coal detecting means 40 via the lump coal which is smoothly contacted with the lump coal detecting means 4 which is 35 and the rotating body.

The sorting plate 34 is supplied with a 10V DC voltage from the control panel 60 to form a positive voltage while the lump coal sensing means 40 makes a negative voltage and conducts electricity through the lump coal passed therebetween. The electric current value applied according to the carbon content contained therein is detected by the current detection unit of the control panel 60 through the power cable 37 connected to the bakelite plate 36 on the lower surface of the sorting plate 34.

In this way, the energized current value of the lump coal detected by the current detection unit of the control panel 60 is repeatedly measured a plurality of times, for example, five times in the preferred embodiment of the present invention, and the average value is calculated. Compared and analyzed by the comparative analysis unit connected to the voltage unit and the calorie selection unit, and as a result, if the detected average current value is higher than the reference current, it is judged as high calorie crystal and drives the relay driving unit connected to the relay speed control unit to drive the solenoid (38) is operated, and by the operation of the solenoid 38, the sorting plate 34 is retracted from the shot discharge outlet 33 of the chute while opening the shot discharge outlet 33 is detected as high calorie coal. The coal coal is discharged to the coal discharge line of the coal coal discharge unit 50 through the open coal discharge port 33.

In addition, when the average current value of the coal briquettes compared and analyzed by the control panel 60 while passing through the coal-fire detection unit 30 is less than a reference current, for example, 1505-2000 mA or less, which is 5750 kcal or less that can be used as high-quality coal, the control panel The relay driving part of the 60 is not operated. Accordingly, the corresponding coal is passed over the sorting plate 34 which closes the coal discharge outlet 33 without the solenoid 38 being operated. Selective discharge to discharge line.

On the other hand, the following measurement table shows the calorie rating table for the five times the average conduction current of the coal coal by the coal coal detecting unit 30 is applied 1OV DC voltage, it is used as a reference value for screening the coal and waste coal.

According to the lump coal automatic screening apparatus according to the present invention described above, the lump coal is mined by calorie by selecting the lump coal mined from the coal mine in the unfolded state one by one without stacking and conducting with low voltage to analyze and select the average current flowing through the lump coal. It is possible to precisely select automatically with high quality coal and low quality powdered coal, and also have the advantage of accurately selecting and discharging while adjusting the calorie grade of the coal according to the calorific value to be used.

As a result, all the processes are automatically completed due to the restructuring problems of domestic coal mines and the raising of coal costs, and the labor cost is reduced. It is expected to contribute to increase the profitability of the coal mining industry by increasing.

Claims (5)

In the pulverized coal sorting device configured to apply a current to the pulverized coal and sort it into coal and waste coal according to the conductive state, the pulverized coal is fed from the hopper 12 through a fixed quantity feeder 14 in a fixed amount and In addition, while the vibrating feeder 22 formed with a plurality of inclined feed grooves 23 is vibrated by the vibrating motor 26, the lump coal transfer part 20 for transferring the lump coal supplied from the lump coal supply part 10 at a constant speed, and a direct current. The solenoid 38 is detected when a current higher than a predetermined selection reference value is detected while the coal is passed through the inclined chute 32 at a constant speed between the plurality of selection plates 34 to which voltage is applied and the corresponding coal coal detection means 40. Is connected to the sorting plate (34) is operated by the coal briquettes automatic selection device comprising a coal-fire detection unit 30 for automatically discharging the high-calorie lump coal and the low-calorie lump coal. The method of claim 1, wherein the lump coal detection means 40 is used with an attachment chain 42, which is a rotating body so that the contact area with the lump coal together with the sorting plate 34, the angle of the chute 32 The coal briquettes automatic selection device, characterized in that installed at a predetermined interval on the sorting plate (34). The method of claim 1, wherein the lump coal detection means 40 is a rotating brush 44 is used as the rotating body so that the contact area with the lump coal together with the sorting plate 34, the angle of the chute 32 Automatic coal sorting device, characterized in that installed at a predetermined interval on the sorting plate 34. According to claim 1, wherein the sorting plate 34 is formed of a copper plate 35 and the bakelite plate 36, the upper surface and the lower surface to which the power cable 37 from the control panel 60 is connected, respectively, the lump coal is contacted And, the upper end is coupled to the shot discharge port 33 penetrated through the chute 32, the lump coal automatic selection device, characterized in that configured to be automatically opened and closed by the solenoid (38). According to claim 1, wherein the vibration feeder 22 each conveying groove 23 is formed in the grooves of the V-shaped groove, each conveying groove 23 so that the speed of the lump coal to be transported to the chute 32 is constantly adjusted. Goe charcoal automatic selection device, characterized in that the speed control piece 24 is installed at the lower end.